Details of the Researcher

PHOTO

Hiromu Nakagawa
Section
Graduate School of Science
Job title
Associate Professor
Degree
  • 博士(理学)(東北大学)

  • 修士(理学)(東北大学)

Professional Memberships 5

  • 日本気象学会

    2021/03 - Present

  • 生命の起源および進化学会

    2018/04 - Present

  • American Geophysical Union

  • 日本惑星科学会

  • 地球電磁気・地球惑星圏学会

Research Interests 6

  • Upper atmosphere

  • Aurora

  • Atmsopheric evolution

  • Mars

  • Planetary atmosphere

  • Spectroscopy

Research Areas 1

  • Natural sciences / Space and planetary science /

Awards 5

  1. National Aeronautics and Space Administration (NASA) National Aeronautics and Space Administration (NASA) Group Achievement Award

    2024/04

  2. Prominent Research Fellow

    2021/07 Tohoku University

  3. National Aeronautics and Space Administration (NASA) National Aeronautics and Space Administration (NASA) Group Achievement Award

    2018 NASA

  4. National Aeronautics and Space Administration (NASA) Group Achievement Award

    2016/12 National Aeronautics and Space Administration (NASA)

  5. Outstanding student paper award

    2002/12 米国地球物理学連合(AGU)

Papers 84

  1. Uptake of SO2 into Sulfuric Acid Droplets through the Oxidation by NO2 under Venus-Analogous Conditions

    Soma Ubukata, Hiroki Karyu, Hiromu Nakagawa, Shungo Koyama, Rikuto Minamikawa, Takeshi Kuroda, Naoki Terada, Masao Gen

    ACS Earth and Space Chemistry 9 (6) 1525-1533 2025/05/23

    Publisher: American Chemical Society (ACS)

    DOI: 10.1021/acsearthspacechem.5c00016  

    ISSN: 2472-3452

    eISSN: 2472-3452

  2. Large Water Inventory in Highly Adsorptive Regolith Simulated With a Mars Global Climate Model Peer-reviewed

    M. Kobayashi, A. Kamada, T. Kuroda, H. Kurokawa, S. Aoki, H. Nakagawa, N. Terada

    Journal of Geophysical Research: Planets 130 (2) 2025/02

    DOI: 10.1029/2024JE008697  

  3. Different Behavior of Density Perturbations Between Dayside and Nightside in the Martian Thermosphere and the Ionosphere Associated With Atmospheric Gravity Waves Peer-reviewed

    Hiromu Nakagawa, Scott L. England, Aishwarya Kumar, Mehdi Benna, Yuki Harada, Shotaro Sakai, Naoki Terada, Kanako Seki, Nao Yoshida

    Journal of Geophysical Research: Space Physics 129 e2024JA032988 2024/12

    DOI: 10.1029/2024JA032988  

  4. C+ 133.5 nm Emission Mechanisms on Mars Revealed by the MAVEN Observations

    Shotaro Sakai, Hiromu Nakagawa, Justin Deighan, Sonal K. Jain, Kei Masunaga, Fuminori Tsuchiya, Naoki Terada, Majd Mayyasi, Nicholas M. Schneider, David L. Mitchell, Christian Mazelle, Mehdi Benna, Robert J. Lillis, Go Murakami, Shannon M. Curry, Kanako Seki

    The Astrophysical Journal 977 (2) 226-226 2024/12/01

    Publisher: American Astronomical Society

    DOI: 10.3847/1538-4357/ad8e35  

    ISSN: 0004-637X

    eISSN: 1538-4357

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    Abstract C+ emission is generated by electron impact, dissociative ionization, photoionization, and resonant scattering with carbon-related atoms, molecules, and ions in the Martian ionosphere and thermosphere. The contribution of each mechanism to the emission, however, has not been elucidated due to the difficulty of observation and the fact that a part of the emission cross section is unclear. The current paper isolates the C+ emission mechanism using remote-sensing and in situ observations on board Mars Atmosphere and Volatile EvolutioN. Both electron impact and dissociative ionization/photoionization contribute to C+ emission below 150 km altitude when the CO density is high, but only dissociative ionization/photoionization contributes to the emission for the low CO density case, while only dissociative ionization/photoionization dominates the emission at altitudes between 150 and 165 km for both CO density cases. It is difficult to estimate the total flux of suprathermal electrons in the ionosphere from remote-sensing observations of C+ emission because the contribution of electron impact to C+ emission is small. In contrast, C-atom remote-sensing observations might provide a better understanding of the total flux of suprathermal electrons in the ionosphere than C+ emission, and global ultraviolet observations could be utilized as a tool for monitoring the ionosphere. The total flux of suprathermal electrons estimated from C-atom emission may be utilized to isolate the contribution of each C+ emission process to the brightness more accurately. This suggests that the C+ and C-atom emissions might be tracers of spatiotemporal variations in the Martian ionosphere and thermosphere.

  5. Characteristics of plasma boundaries with large density gradients and their effects on Kelvin–Helmholtz instability Peer-reviewed

    K. Seki, Y. Matsumoto, N. Terada, T. Hara, D. A. Brain, H. Nakagawa, J. P. McFadden, J. S. Halekas, S. Ruhunusiri, D. L. Mitchell, L. Andersson, J. R. Espley, D. N. Baker, J. G. Luhmann, B. M. Jakosky

    Frontiers in Astronomy and Space Sciences 11 2024/05/31

    Publisher: Frontiers Media SA

    DOI: 10.3389/fspas.2024.1394817  

    eISSN: 2296-987X

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    Boundaries between space plasmas occur in numerous contexts and scales, from astrophysical jets to planetary magnetospheres. Mass and momentum transport across boundaries poses a fundamental problem in magnetospheric physics. Kelvin–Helmholtz instability (KHI) is a promising mechanism to facilitate transport. Although previous studies have suggested KHI occurrence in various space plasmas, theory predicts that compressibility prevents KHI excitation at boundaries with large density gradients because of previously considered boundary structures where density varies with velocity. Based on the observations of a large density gradient boundary by MAVEN at Mars, where we can observe an extreme case, in this study, we show that it is the entropy, instead of the previously considered density, that varies with the velocity in the real velocity-sheared boundary. The entropy-based boundary structure places the velocity shear in a lower-density region than the traditional density-based structure and weakens the compressibility effect. This new boundary structure thus enables KHI excitation even at large density gradient boundaries, such as at the ionopause of unmagnetized planets and the plasmapause of magnetized planets. The result suggests the ubiquitous occurrence of KHI in the plasma universe and emphasizes its important role in planetary cold plasma escape from unmagnetized planets.

  6. Discrete aurora and the nightside ionosphere of Mars: an EMM–MEX conjunction of FUV imaging, ionospheric radar sounding, and suprathermal electron measurements Peer-reviewed

    Yuki Harada, Yuka Fujiwara, Robert J. Lillis, Justin Deighan, Hiromu Nakagawa, Beatriz Sánchez-Cano, Mark Lester, Yoshifumi Futaana, Mats Holmström, Rudy A. Frahm

    Earth, Planets and Space 2024/05/06

    DOI: 10.1186/s40623-024-02010-x  

    ISSN: 1880-5981

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    <jats:title>Abstract</jats:title><jats:p>Since 2021, a new surge in discrete aurora detections at Mars has been observed by the Emirates Mars Ultraviolet Spectrometer (EMUS) onboard the Emirates Mars Mission (EMM) Hope Orbiter as EMUS started to regularly obtain synoptic auroral images with a high sensitivity. Here we report on a fortuitous conjunction between EMM and Mars Express (MEX) using far ultraviolet (FUV) imaging of discrete aurora by EMM EMUS, in situ measurements of suprathermal electrons by the MEX Analyzer of Space Plasma and Energetic Atoms Electron Spectrometer (ELS), and topside radar sounding of the nightside ionosphere by the MEX Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS). In this event, EMM EMUS imaged a clear discrete aurora signature around moderately strong crustal magnetic fields on the nightside near the dusk terminator, 11 min before which MEX MARSIS measured a prominent local enhancement of the peak electron density in the nightside ionosphere and MEX ELS observed an in situ enhancement of suprathermal electrons at the corresponding location. A remarkable geographic agreement is found between the enhancements of the aurora, ionosphere, and suprathermal electrons, suggesting that the enhanced ionization and auroral emission are caused concurrently by precipitating suprathermal electrons. Subsequent images indicate that the discrete aurora slightly changed its shape in 15 min and mostly disappeared in a few hours. The MEX MARSIS measurements of the auroral ionosphere display overlapping ionospheric and surface echoes indicative of horizontal gradients of the peak electron density. Analysis of the overlapping echoes implies that the auroral ionosphere and electron precipitation could be highly structured with horizontal spatial scales on the order of several tens of km. MEX MARSIS also observed a non-auroral ionospheric enhancement with a wider spatial extent than the local auroral enhancement, suggesting alternative sources of the enhanced nightside ionosphere such as plasma transport. The comparison between the ionospheric structures measured by MEX MARSIS, suprathermal electron flux measured by MEX ELS, and discrete auroral emission imaged by EMM EMUS underscores the complexity of the auroral and non-auroral nightside ionospheres. This motivates further investigations of their sources, transport, and connections to the magnetotail dynamics of Mars.</jats:p>

  7. Constraining the global composition of D/H and 18O/16O in Martian water using SOFIA/EXES Peer-reviewed

    J Alday, S Aoki, C DeWitt, F Montmessin, J A Holmes, M R Patel, J P Mason, T Encrenaz, M J Richter, P G J Irwin, F Daerden, N Terada, H Nakagawa

    Monthly Notices of the Royal Astronomical Society 530 (3) 2919-2932 2024/04/22

    Publisher: Oxford University Press (OUP)

    DOI: 10.1093/mnras/stae1067  

    ISSN: 0035-8711

    eISSN: 1365-2966

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    ABSTRACT Isotopic ratios in water vapour carry important information about the water reservoir on Mars. Localized variations in these ratios can inform us about the water cycle and surface–atmosphere exchanges. On the other hand, the global isotopic composition of the atmosphere carries the imprints of the long-term fractionation, providing crucial information about the early water reservoir and its evolution throughout history. Here, we report the analysis of measurements of the D/H and 18O/16O isotopic ratios in water vapour in different seasons (LS = 15○, 127○, 272○, and 305○) made with the Echelon-Cross-Echelle Spectrograph (EXES) aboard the Stratospheric Observatory for Infrared Astronomy (SOFIA). These measurements, free of telluric absorption, provide a unique tool for constraining the global isotopic composition of Martian water vapour. We find the maximum planetary D/H ratio in our observations during the northern summer (D/H = 5.2 ± 0.2 with respect to the Vienna Standard Mean Ocean Water, VSMOW) and to exhibit relatively small variations throughout the year (D/H = 5.0 ± 0.2 and 4.3 ± 0.4 VSMOW during the northern winter and spring, respectively), which are to first order consistent though noticeably larger than the expectations from condensation-induced fractionation. Our measurements reveal the annually averaged isotopic composition of water vapour to be consistent with D/H = 5.0 ± 0.2 and 18O/16O = 1.09 ± 0.08 VSMOW. In addition, based on a comparison between the SOFIA/EXES measurements and the predictions from a Global Climate Model, we estimate the D/H in the northern polar ice cap to be $\sim\!{5}~{ { \ \rm per\ cent } }$ larger than that in the atmospheric reservoir (D/Hice = 5.3 ± 0.3 VSMOW).

  8. もう一つの月世界へ:火星衛星探査計画MMX その4 〜イオン質量分析による火星大気流出観測の意義〜

    益永 圭, 黒川 宏之, 小池 みずほ, 中川 広務, 寺田 直樹, 横田 勝一郎, MSAチーム, MSSSTチーム

    日本惑星科学会誌 33 (1) 51-59 2024/03

    DOI: 10.14909/yuseijin.33.1_51  

  9. Modeling 4.3 billion years of water history on Phobos Peer-reviewed

    A. Kamada, T. Kuroda, N. Terada, M. Kobayashi, H. Nakagawa, H. Miyamoto

    Icarus 410 2024/03/01

    DOI: 10.1016/j.icarus.2023.115916  

    ISSN: 0019-1035

    eISSN: 1090-2643

  10. Numerical Prediction of Changes in Atmospheric Chemical Compositions During a Solar Energetic Particle Event on Mars Peer-reviewed

    Yuki Nakamura, François Leblanc, Naoki Terada, Sayano Hiruba, Isao Murata, Hiromu Nakagawa, Shotaro Sakai, Shohei Aoki, Arianna Piccialli, Yannick Willame, Lori Neary, Ann Carine Vandaele, Kiyoka Murase, Ryuho Kataoka

    Journal of Geophysical Research: Space Physics 128 (12) 2023/12/06

    Publisher: American Geophysical Union (AGU)

    DOI: 10.1029/2022ja031250  

    ISSN: 2169-9380

    eISSN: 2169-9402

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    Abstract Precipitation of solar energetic particles (SEPs) into planetary atmospheres causes changes in atmospheric chemical composition through ionization, dissociation, and excitation of atmospheric molecules. In contrast to the terrestrial atmosphere, where depletion of ozone in the polar mesosphere has been studied by observations and models for decades, there have been no studies on the effects of SEPs on the neutral chemical composition of Mars' present‐day atmosphere. This study provided the first estimate of the impacts of SEPs on neutral chemical composition in the present‐day Martian atmosphere coupling a Monte Carlo model and a one‐dimensional photochemical model. Our results showed that ozone density in the Martian atmosphere might decrease in the altitude range of 20–60 km with a factor 10 maximum enhancement occurring at 40 km during a Halloween‐class SEP event due to an enhanced concentration of HOx. The depletion of ozone occurred in the altitude range of 20–60 km, corresponding to the penetration of protons with an energy range of 4.6–46 MeV. Such ozone depletion should be detected by Trace Gas Orbiter/Nadir and Occultation for MArs Discovery during intense SEP event. A 75% depletion of the ozone density at 40 km can be expected during SEP events occurring once in every 1 year. Therefore, ozone concentration in the Martian atmosphere might sufficiently decrease during a SEP event as on Earth, but through different chemical pathways driven by CO2 ionization and CO recombination catalytic cycle.

  11. Depletion of 13C in CO in the Atmosphere of Mars Suggested by ExoMars-TGO/NOMAD Observations Peer-reviewed

    S. Aoki, K. Shiobara, N. Yoshida, L. Trompet, T. Yoshida, N. Terada, H. Nakagawa, G. Liuzzi, A. C. Vandaele, I. R. Thomas, G. L. Villanueva, M. A. Lopez-Valverde, A. Brines, M. R. Patel, S. Faggi, F. Daerden, J. T. Erwin, B. Ristic, G. Bellucci, J. J. Lopez-Moreno, H. Kurokawa, Y. Ueno

    The Planetary Science Journal 4 (5) 97-97 2023/05/01

    Publisher: American Astronomical Society

    DOI: 10.3847/psj/acd32f  

    eISSN: 2632-3338

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    Abstract The atmosphere of Mars is mainly composed by carbon dioxide (CO2). It has been predicted that photodissociation of CO2 depletes 13C in carbon monoxide (CO). We present the carbon 13C/12C isotopic ratio in CO at 30–50 km altitude from the analysis of the solar occultation measurements taken by the instrument Nadir and Occultation for Mars Discovery on board the ExoMars Trace Gas Orbiter (ExoMars-TGO). We retrieve 12C16O, 13C16O, and 12C18O volume mixing ratios from the spectra taken at 4112–4213 cm−1, where multiple CO isotope lines with similar intensities are available. The intensities of the 12C16O lines in this spectral range are particularly sensitive to temperature, thus we derive the atmospheric temperature by retrieving CO2 density with simultaneously measured spectra at 2966–2990 cm−1. The mean δ13C value obtained from the 13C16O/12C16O ratios is −263‰, and the standard deviation and standard error of the mean are 132‰ and 4‰, respectively. The relatively large standard deviation is due to the strong temperature dependences in the 12C16O lines. We also examine the 13C16O/12C18O ratio, whose lines are less sensitive to temperature. The mean δ value obtained with 12C18O instead of 12C16O is −82‰ with smaller standard deviation, 60‰. These results suggest that CO is depleted in 13C when compared to CO2 in the Martian atmosphere as measured by the Curiosity rover. This depletion of 13C in CO is consistent with the CO2 photolysis-induced fractionation, which might support a CO-based photochemical origin of organics in Martian sediments.

  12. Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model Peer-reviewed

    Tatsuya Yoshida, Shohei Aoki, Yuichiro Ueno, Naoki Terada, Yuki Nakamura, Kimie Shiobara, Nao Yoshida, Hiromu Nakagawa, Shotaro Sakai, Shungo Koyama

    The Planetary Science Journal 4 (3) 53-53 2023/03/01

    Publisher: American Astronomical Society

    DOI: 10.3847/psj/acc030  

    eISSN: 2632-3338

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    Abstract The isotopic signature of atmospheric carbon offers a unique tracer for the history of the Martian atmosphere and the origin of organic matter on Mars. The photolysis of CO2 is known to induce strong isotopic fractionation of the carbon between CO2 and CO. However, its effects on the carbon isotopic compositions in the Martian atmosphere remain uncertain. Here, we develop a 1D photochemical model to consider the isotopic fractionation via photolysis of CO2, to estimate the vertical profiles of the carbon isotopic compositions of CO and CO2 in the Martian atmosphere. We find that CO is depleted in 13C compared with CO2 at each altitude, due to the fractionation via CO2 photolysis: the minimum value of the δ13C in CO is about −170‰ under the standard eddy diffusion setting. This result supports the hypothesis that fractionated atmospheric CO is responsible for the production of the 13C-depleted organic carbon in the Martian sediments detected by the Curiosity Rover, through the conversion of CO into organic materials and their deposition on the surface. The photolysis and transport-induced fractionation of CO that we report here leads to a ∼15% decrease in the amount of inferred atmospheric loss when combined with the present-day fractionation of the atmosphere and previous studies of carbon escape to space. The fractionated isotopic composition of CO in the Martian atmosphere may be observed by ExoMars Trace Gas Orbiter and ground-based telescopes, and the escaping ion species produced by the fractionated carbon-bearing species may be detected by the Martian Moons eXploration mission in the future.

  13. Hisaki space telescope observations of the large oscillations of Martian hydrogen and oxygen upper atmospheres Peer-reviewed

    Kei Masunaga, Naoki Terada, Nao Yoshida, Yuki Nakamura, Takeshi Kuroda, Kazuo Yoshioka, Yudai Suzuki, Hiromu Nakagawa, Tomoki Kimura, Fuminori Tsuchiya, Go Murakami, Atsushi Yamazaki, Tomohiro Usui, Ichiro Yoshikawa

    2023/02/22

    DOI: 10.5194/egusphere-egu23-1968  

  14. Mid-infrared laser heterodyne spectrometer by hollow optical fiber and its newly designed coupler Peer-reviewed

    Hiromu Nakagawa, Satoki Tsukada, Takashi Katagiri, Yasumasa Kasaba, Isao Murata, Yasuhiro Hirahara, Yuji Matsuura, Atsushi Yamazaki

    Applied Optics 62 (6) A31-A36 2023/02/20

    DOI: 10.1364/AO.475426  

    ISSN: 1559-128X

    eISSN: 2155-3165

  15. Martian moons exploration MMX: sample return mission to Phobos elucidating formation processes of habitable planets Peer-reviewed

    Kiyoshi Kuramoto, Yasuhiro Kawakatsu, Masaki Fujimoto, Akito Araya, Maria Antonietta Barucci, Hidenori Genda, Naru Hirata, Hitoshi Ikeda, Takeshi Imamura, Jörn Helbert, Shingo Kameda, Masanori Kobayashi, Hiroki Kusano, David J. Lawrence, Koji Matsumoto, Patrick Michel, Hideaki Miyamoto, Tomokatsu Morota, Hiromu Nakagawa, Tomoki Nakamura, Kazunori Ogawa, Hisashi Otake, Masanobu Ozaki, Sara Russell, Sho Sasaki, Hirotaka Sawada, Hiroki Senshu, Shogo Tachibana, Naoki Terada, Stephan Ulamec, Tomohiro Usui, Koji Wada, Sei-ichiro Watanabe, Shoichiro Yokota

    Earth, Planets and Space 74 (1) 2022/12

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1186/s40623-021-01545-7  

    eISSN: 1880-5981

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    <title>Abstract</title>Martian moons exploration, MMX, is the new sample return mission planned by the Japan Aerospace Exploration Agency (JAXA) targeting the two Martian moons with the scheduled launch in 2024 and return to the Earth in 2029. The major scientific objectives of this mission are to determine the origin of Phobos and Deimos, to elucidate the early Solar System evolution in terms of volatile delivery across the snow line to the terrestrial planets having habitable surface environments, and to explore the evolutionary processes of both moons and Mars surface environment. To achieve these objectives, during a stay in circum-Martian space over about 3 years MMX will collect samples from Phobos along with close-up observations of this inner moon and carry out multiple flybys of Deimos to make comparative observations of this outer moon. Simultaneously, successive observations of the Martian atmosphere will also be made by utilizing the advantage of quasi-equatorial spacecraft orbits along the moons’ orbits. <bold>Graphical Abstract</bold>

  16. Alternate oscillations of Martian hydrogen and oxygen upper atmospheres during a major dust storm. International-journal Peer-reviewed

    Kei Masunaga, Naoki Terada, Nao Yoshida, Yuki Nakamura, Takeshi Kuroda, Kazuo Yoshioka, Yudai Suzuki, Hiromu Nakagawa, Tomoki Kimura, Fuminori Tsuchiya, Go Murakami, Atsushi Yamazaki, Tomohiro Usui, Ichiro Yoshikawa

    Nature communications 13 (1) 6609-6609 2022/11/03

    DOI: 10.1038/s41467-022-34224-6  

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    Dust storms on Mars play a role in transporting water from its lower to upper atmosphere, seasonally enhancing hydrogen escape. However, it remains unclear how water is diurnally transported during a dust storm and how its elements, hydrogen and oxygen, are subsequently influenced in the upper atmosphere. Here, we use multi-spacecraft and space telescope observations obtained during a major dust storm in Mars Year 33 to show that hydrogen abundance in the upper atmosphere gradually increases because of water supply above an altitude of 60 km, while oxygen abundance temporarily decreases via water ice absorption, catalytic loss, or downward transportation. Additionally, atmospheric waves modulate dust and water transportations, causing alternate oscillations of hydrogen and oxygen abundances in the upper atmosphere. If dust- and wave-driven couplings of the Martian lower and upper atmospheres are common in dust storms, with increasing escape of hydrogen, oxygen will less efficiently escape from the upper atmosphere, leading to a more oxidized atmosphere. These findings provide insights regarding Mars' water loss history and its redox state, which are crucial for understanding the Martian habitable environment.

  17. Corrigendum to “Global climate and river transport simulations of early Mars around the Noachian and Hesperian boundary” [Icarus, Volume 368 (2021) 114618] (Icarus (2021) 368, (S0019103521002827), (10.1016/j.icarus.2021.114618)) Peer-reviewed

    A. Kamada, T. Kuroda, Y. Kasaba, N. Terada, H. Nakagawa

    Icarus 379 2022/06

    DOI: 10.1016/j.icarus.2022.114915  

    ISSN: 0019-1035

    eISSN: 1090-2643

  18. Variations in vertical CO/CO2 profiles in the Martian mesosphere and lower thermosphere measured by the ExoMars TGO/NOMAD: Implications of variations in eddy diffusion coefficient Peer-reviewed

    Yoshida, N, H. Nakagawa, S. Aoki, J. Erwin, A. C. Vandaele, F. Daerden, I. Thomas, L. Trompet, S. Koyama, N. Terada, L. Neary, I. Murata, G. Villanueva, G. Liuzzi, M. A. Lopez-Valverde, A. Brines, A. Modak, Y. Kasaba, B. Ristic, G. Bellucci, J. J. Lopez-Moreno, M. Pate

    Geophysical Reseach Letter 49 (10) 2022/05

    DOI: 10.1029/2022GL098485  

    ISSN: 0094-8276

    eISSN: 1944-8007

  19. Modeling of Diffuse Auroral Emission at Mars: Contribution of MeV Protons Peer-reviewed

    Yuki Nakamura, Naoki Terada, François Leblanc, Ali Rahmati, Hiromu Nakagawa, Shotaro Sakai, Sayano Hiruba, Ryuho Kataoka, Kiyoka Murase

    Journal of Geophysical Research: Space Physics 127 (1) 2022/01

    Publisher: American Geophysical Union (AGU)

    DOI: 10.1029/2021ja029914  

    ISSN: 2169-9380

    eISSN: 2169-9402

  20. Science operation plan of Phobos and Deimos from the MMX spacecraft Peer-reviewed

    Tomoki Nakamura, Hitoshi Ikeda, Toru Kouyama, Hiromu Nakagawa, Hiroki Kusano, Hiroki Senshu, Shingo Kameda, Koji Matsumoto, Ferran Gonzalez-Franquesa, Naoya Ozaki, Yosuke Takeo, Nicola Baresi, Yusuke Oki, David J. Lawrence, Nancy L. Chabot, Patrick N. Peplowski, Maria Antonietta Barucci, Eric Sawyer, Shoichiro Yokota, Naoki Terada, Stephan Ulamec, Patrick Michel, Masanori Kobayashi, Sho Sasaki, Naru Hirata, Koji Wada, Hideaki Miyamoto, Takeshi Imamura, Naoko Ogawa, Kazunori Ogawa, Takahiro Iwata, Takane Imada, Hisashi Otake, Elisabet Canalias, Laurence Lorda, Simon Tardivel, Stéphane Mary, Makoto Kunugi, Seiji Mitsuhashi, Alain Doressoundiram, Frédéric Merlin, Sonia Fornasier, Jean-Michel Reess, Pernelle Bernardi, Shigeru Imai, Yasuyuki Ito, Hatsumi Ishida, Kiyoshi Kuramoto, Yasuhiro Kawakatsu

    Earth, Planets and Space 73 (1) 2021/12

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1186/s40623-021-01546-6  

    eISSN: 1880-5981

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    Abstract The science operations of the spacecraft and remote sensing instruments for the Martian Moon eXploration (MMX) mission are discussed by the mission operation working team. In this paper, we describe the Phobos observations during the first 1.5 years of the spacecraft’s stay around Mars, and the Deimos observations before leaving the Martian system. In the Phobos observation, the spacecraft will be placed in low-altitude quasi-satellite orbits on the equatorial plane of Phobos and will make high-resolution topographic and spectroscopic observations of the Phobos surface from five different altitudes orbits. The spacecraft will also attempt to observe polar regions of Phobos from a three-dimensional quasi-satellite orbit moving out of the equatorial plane of Phobos. From these observations, we will constrain the origin of Phobos and Deimos and select places for landing site candidates for sample collection. For the Deimos observations, the spacecraft will be injected into two resonant orbits and will perform many flybys to observe the surface of Deimos over as large an area as possible. Graphical Abstract

  21. In situ observations of ions and magnetic field around Phobos: the mass spectrum analyzer (MSA) for the Martian Moons eXploration (MMX) mission Peer-reviewed

    Shoichiro Yokota, Naoki Terada, Ayako Matsuoka, Naofumi Murata, Yoshifumi Saito, Dominique Delcourt, Yoshifumi Futaana, Kanako Seki, Micah J. Schaible, Kazushi Asamura, Satoshi Kasahara, Hiromu Nakagawa, Masaki N. Nishino, Reiko Nomura, Kunihiro Keika, Yuki Harada, Shun Imajo

    Earth, Planets and Space 73 (1) 2021/12

    DOI: 10.1186/s40623-021-01452-x  

    ISSN: 1343-8832

    eISSN: 1880-5981

  22. Mars’ atmospheric neon suggests volatile-rich primitive mantle Peer-reviewed

    Hiroyuki Kurokawa, Yayoi N. Miura, Seiji Sugita, Yuichiro Cho, François Leblanc, Naoki Terada, Hiromu Nakagawa

    Icarus 370 114685-114685 2021/12

    Publisher: Elsevier BV

    DOI: 10.1016/j.icarus.2021.114685  

    ISSN: 0019-1035

    eISSN: 1090-2643

  23. Seasonal and dust‐related variations in the dayside thermospheric and ionospheric compositions of Mars observed by MAVEN/NGIMS Peer-reviewed

    Nao Yoshida, Naoki Terada, Hiromu Nakagawa, David A. Brain, Shotaro Sakai, Yuki Nakamura, Mehdi Benna, Kei Masunaga

    Journal of Geophysical Research: Planets 126 (e2021JE006926) 2021/10/28

    Publisher: American Geophysical Union (AGU)

    DOI: 10.1029/2021je006926  

    ISSN: 2169-9097

    eISSN: 2169-9100

  24. Can we constrain the origin of Mars' recurring slope lineae using atmospheric observations? Peer-reviewed

    Hiroyuki Kurokawa, Takeshi Kuroda, Shohei Aoki, Hiromu Nakagawa

    Icarus 114688-114688 2021/09

    Publisher: Elsevier BV

    DOI: 10.1016/j.icarus.2021.114688  

    ISSN: 0019-1035

  25. Global climate and river transport simulations of early Mars around the Noachian and Hesperian boundary Peer-reviewed

    A. Kamada, T. Kuroda, Y. Kasaba, N. Terada, H. Nakagawa

    Icarus 368 114618-114618 2021/07

    Publisher: Elsevier BV

    DOI: 10.1016/j.icarus.2021.114618  

    ISSN: 0019-1035

    eISSN: 1090-2643

  26. Determination of the Venus eddy diffusion profile from CO and CO2 profiles using SOIR/Venus Express observations Peer-reviewed

    A. Mahieux, R.V. Yelle, N. Yoshida, S. Robert, A. Piccialli, H. Nakagawa, Y. Kasaba, F.P. Mills, A.C. Vandaele

    Icarus 361 114388-114388 2021/06

    Publisher: Elsevier BV

    DOI: 10.1016/j.icarus.2021.114388  

    ISSN: 0019-1035

    eISSN: 1090-2643

  27. MIRS an Imaging spectrometer for the MMX mission Peer-reviewed

    Maria Antonietta Barucci, Jean-Michel Peess, Pernelle Bernardi, Alain Dorossoundiram, Sonia Fornasier, Michel Le Du, Takahiro Iwata, Hiromu Nakagawa, Tomoki Nakamura, Yves Andre, Shohei Aoki, Takahiko Arai, Elisa Baldit, Pierre Beck, Jean-Tristan Buey, Elisabet Canalias, Matthieu Castelnau, Sebastian Charnoz, Marc Chaussidon, Frederic Chapron, Valeire Ciarletti, Marco Delbo, Bruno Dubois, Stephane Gauffre, Thomas Gautier, Hidenori Genda, Gilles Hervet, Christian Imbert, Takeshi Imamura, Laurent Jorda, Shingo Kameda, Driss Kouach, Toru Kouyama, Takeshi Kuroda, Hiroyuki Kurokawa, Laurent Lapaw, Jeremie Lasue, Laetitia Le Deit, Aurelien Ledot, Cedric Leyrat, Bertrand Le Ruyet, Moe Matsuoka, Frederic Merlin, Hideaki Miyamoto, Frederic Moynier, Napoleon Naguyen Tuong, Kazunori Ogohara, Takahito Osawa, Jerome Parisot, Laurie Pistre, Benjamin Quertier, Sean Raymond, Francis Rocard, Takeshi Sakanoi, Takao M. Sato, Eric Sawyer, Feriel Tache, Sylvain Tremolieres, Fuminori Tsuchiya, Pierre Vernazza, Didier Zeganadin

    Earth, Planets, Space 2021/05

  28. Intense Zonal Wind in the Martian Mesosphere During the 2018 Planet-Encircling Dust Event Observed by Ground-based IR Heterodyne Spectroscopy Peer-reviewed

    A. Miyamoto, H. Nakagawa, T. Kuroda, K. Takami, I. Murata, A. S. Medvedev, N. Yoshida, K. Toriumi, S. Aoki, H. Sagawa, Y. Kasaba, N. Terada

    Geophys. Res. Let. 48 (11) 2021/05

    Publisher: American Geophysical Union (AGU)

    DOI: 10.1029/2021gl092413  

    ISSN: 0094-8276

    eISSN: 1944-8007

  29. Stability of Atmospheric Redox States of Early Mars Inferred from Time Response of the Regulation of H and O Losses Peer-reviewed

    Shungo Koyama, Naoki Terada, Hiromu Nakagawa, Takeshi Kuroda, Yasuhito Sekine

    The Astrophysical Journal 912 (2) 135-135 2021/05/01

    Publisher: American Astronomical Society

    DOI: 10.3847/1538-4357/abf0ac  

    ISSN: 0004-637X

    eISSN: 1538-4357

  30. The Mars system revealed by the Martian Moons eXploration mission Peer-reviewed

    Ogohara, Nakagawa, Aoki, Kouyama, Usui, Terada, Imamura, Montmessin, Brain, Dorossoundiram, Gautier, Hara, Harada, Ikeda, Koike, Leblanc, Ramirez, Sawyer, Seki, Spiga, Vandaele, Yokota, Barucci, Kameda

    Earth, Planets, Space 2021/03

  31. Seasonal and Latitudinal Variations of Dayside N 2 /CO 2 Ratio in the Martian Thermosphere Derived From MAVEN IUVS Observations Peer-reviewed

    N. Yoshida, H. Nakagawa, N. Terada, J. S. Evans, N. M. Schneider, S. K. Jain, T. Imamura, J.‐Y. Chaufray, H. Fujiwara, J. Deighan, B. M. Jakosky

    Journal of Geophysical Research: Planets 125 (12) 2020/12

    Publisher: American Geophysical Union (AGU)

    DOI: 10.1029/2020je006378  

    ISSN: 2169-9097

    eISSN: 2169-9100

  32. Evaluation of a method to retrieve temperature and wind velocity profiles of the Venusian nightside mesosphere from mid-infrared CO<inf>2</inf> absorption line observed by heterodyne spectroscopy Peer-reviewed

    Kosuke Takami, Hiromu Nakagawa, Hideo Sagawa, Pia Krause, Isao Murata, Yasumasa Kasaba, Takeshi Kuroda, Shohei Aoki, Toru Kouyama, Theodor Kostiuk, Timothy A. Livengood, Gabriella Gilli

    Earth, Planets and Space 72 (1) 2020/12/01

    DOI: 10.1186/s40623-020-01188-0  

    ISSN: 1343-8832

    eISSN: 1880-5981

  33. Design for stray-light reduction to a Martian ionospheric imager Peer-reviewed

    Hiromu Nakagawa, Atsushi Yamazaki, Keigo Enya, Naofumi Fujishiro, Naoki Terada, Kanako Seki

    Applied Optics 59 (32) 9937-9937 2020/11/10

    Publisher: The Optical Society

    DOI: 10.1364/ao.401523  

    ISSN: 1559-128X

    eISSN: 2155-3165

  34. Vertical Propagation of Wave Perturbations in the Middle Atmosphere on Mars by MAVEN/IUVS Peer-reviewed

    Hiromu Nakagawa, Naoki Terada, Sonal K. Jain, Nicholas M. Schneider, Franck Montmessin, Roger V. Yelle, Fayu Jiang, Loic Verdier, Scott L. England, Kanako Seki, Hitoshi Fujiwara, Takeshi Imamura, Nao Yoshida, Takeshi Kuroda, Kaori Terada, Hannes Gröller, Justin Deighan, Bruce M. Jakosky

    Journal of Geophysical Research: Planets 125 (9) 2020/09

    Publisher: American Geophysical Union (AGU)

    DOI: 10.1029/2020je006481  

    ISSN: 2169-9097

    eISSN: 2169-9100

  35. A coupled atmosphere–hydrosphere global climate model of early Mars: A ‘cool and wet’ scenario for the formation of water channels Peer-reviewed

    A. Kamada, T. Kuroda, Y. Kasaba, N. Terada, H. Nakagawa, K. Toriumi

    Icarus 338 113567 2020/03

    DOI: 10.1016/j.icarus.2019.113567  

    ISSN: 0019-1035

    eISSN: 1090-2643

  36. A Warm Layer in the Nightside Mesosphere of Mars Peer-reviewed

    Hiromu Nakagawa, Sonal K. Jain, Nicholas M. Schneider, Franck Montmessin, Roger V. Yelle, Fayu Jiang, Loic Verdier, Takeshi Kuroda, Nao Yoshida, Hitoshi Fujiwara, Takeshi Imamura, Naoki Terada, Kaori Terada, Kanako Seki, Hannes Gröller, Justin I. Deighan

    Geophysical Research Letters 47 (4) 2020/02/28

    DOI: 10.1029/2019GL085646  

    ISSN: 0094-8276

    eISSN: 1944-8007

  37. Broadband mid-IR fiber optics for heterodyne spectroscopy in solar system exploration missions

    Hiromu Nakagawa, Satoki Tsukada, Yasumasa Kasaba, Yasuhiro Hirahara, Yuji Matsuura, Takashi Katagiri, Isao Murata, Atsushi Yamazaki

    Proceedings of SPIE - The International Society for Optical Engineering 11451 2020

    DOI: 10.1117/12.2561939  

    ISSN: 0277-786X

    eISSN: 1996-756X

  38. Development of the liquid nitrogen cooled hollow core waveguide fiber for the mid-infrared region

    Yasuhiro Hirahara, Ryota Ito, Yuji Yokoyama, Yuji Matsuura, Takashi Katagiri, Hiromu Nakagawa, Yasumasa Kasaba, Atsushi Yamazaki

    Proceedings of SPIE - The International Society for Optical Engineering 11451 2020

    DOI: 10.1117/12.2561187  

    ISSN: 0277-786X

    eISSN: 1996-756X

  39. Water Vapor Vertical Profiles on Mars in Dust Storms Observed by TGO/NOMAD Peer-reviewed

    S. Aoki, A. C. Vandaele, F. Daerden, G. L. Villanueva, G. Liuzzi, I. R. Thomas, J. T. Erwin, L. Trompet, S. Robert, L. Neary, S. Viscardy, R. T. Clancy, M. D. Smith, M. A. Lopez-Valverde, B. Hill, B. Ristic, M. R. Patel, G. Bellucci, J. J. Lopez-Moreno, A. C. Vandaele, J. J. Lopez-Moreno, Giancarlo Bellucci, Manish R. Patel, Gustavo Alonso-Rodrigo, Shohei Aoki, Francesca Altieri, Sophie Bauduin, David Bolsée, Giacomo Carrozzo, R. Todd Clancy, Edward Cloutis, Matteo Crismani, Frank Daerden, Fabiana Da Pieve, Emiliano D'Aversa, Cédric Depiesse, Justin T. Erwin, Giuseppe Etiope, Anna A. Fedorova, Bernd Funke, Didier Fussen, Maia Garcia-Comas, Anna Geminale, Jean Claude Gérard, Marco Giuranna, Leo Gkouvelis, Francisco Gonzalez-Galindo, James Holmes, Benoît Hubert, Nicolay I. Ignatiev, Jacek Kaminski, Ozgur Karatekin, Yasumasa Kasaba, David Kass, Armin Kleinböhl, Orietta Lanciano, Franck Lefèvre, Stephen Lewis, Giuliano Liuzzi, Manuel López-Puertas, Miguel López-Valverde, Arnaud Mahieux, Jon Mason, Daniel Mege, Michael J. Mumma, Hiromu Nakagawa, L. Neary, Eddy Neefs, Robert E. Novak, Fabrizio Oliva, Arianna Piccialli, Etienne Renotte, Birgit Ritter, Séverine Robert, Frédéric Schmidt, Nick Schneider, Giuseppe Sindoni, Michael D. Smith, Nicholas A. Teanby, Ed Thiemann, Ian R. Thomas, Alexander Trokhimovskiy, L. Trompet, Jean Vander Auwera, G. L. Villanueva, S. Viscardy, James Whiteway, Valerie Wilquet, Yannick Willame, Michael J. Wolff, Paulina Wolkenberg, Roger Yelle, Aparicio del Moral Beatriz, Pascal Barzin, Bram Beeckman, Ali BenMoussa, Sophie Berkenbosch, David Biondi, Sabrina Bonnewijn, Gian Paolo Candini

    Journal of Geophysical Research: Planets 124 (12) 3482-3497 2019/12/01

    DOI: 10.1029/2019JE006109  

    ISSN: 2169-9097

    eISSN: 2169-9100

  40. ALMA observations of the 2018 global dust storm on Mars: Temporal variation of the surface brightness temperature Peer-reviewed

    Sagawa, H, S. Aoki, H. Maezawa, H. Nakagawa, Y. Kasaba

    Planetary People (Yuu-Sei-Jin) 28 (4) 27 2019/12

  41. Publisher Correction: No detection of methane on Mars from early ExoMars Trace Gas Orbiter observations (Nature, (2019), 568, 7753, (517-520), 10.1038/s41586-019-1096-4) Peer-reviewed

    Oleg Korablev, Ann Carine Vandaele, Franck Montmessin, Anna A. Fedorova, Alexander Trokhimovskiy, François Forget, Franck Lefèvre, Frank Daerden, Ian R. Thomas, Loïc Trompet, Justin T. Erwin, Shohei Aoki, Séverine Robert, Lori Neary, Sébastien Viscardy, Alexey V. Grigoriev, Nikolay I. Ignatiev, Alexey Shakun, Andrey Patrakeev, Denis A. Belyaev, Jean Loup Bertaux, Kevin S. Olsen, Lucio Baggio, Juan Alday, Yuriy S. Ivanov, Bojan Ristic, Jon Mason, Yannick Willame, Cédric Depiesse, Laszlo Hetey, Sophie Berkenbosch, Roland Clairquin, Claudio Queirolo, Bram Beeckman, Eddy Neefs, Manish R. Patel, Giancarlo Bellucci, Jose Juan López-Moreno, Colin F. Wilson, Giuseppe Etiope, Lev Zelenyi, Håkan Svedhem, Jorge L. Vago, Gustavo Alonso-Rodrigo, Francesca Altieri, Konstantin Anufreychik, Gabriele Arnold, Sophie Bauduin, David Bolsée, Giacomo Carrozzo, R. Todd Clancy, Edward Cloutis, Matteo Crismani, Fabiana Da Pieve, Emiliano D’Aversa, Natalia Duxbury, Therese Encrenaz, Thierry Fouchet, Bernd Funke, Didier Fussen, Maia Garcia-Comas, Jean Claude Gérard, Marco Giuranna, Leo Gkouvelis, Francisco Gonzalez-Galindo, Davide Grassi, Sandrine Guerlet, Paul Hartogh, James Holmes, Benoît Hubert, Jacek Kaminski, Ozgur Karatekin, Yasumasa Kasaba, David Kass, Igor Khatuntsev, Armin Kleinböhl, Nikita Kokonkov, Vladimir Krasnopolsky, Ruslan Kuzmin, Gaétan Lacombe, Orietta Lanciano, Emmanuel Lellouch, Stephen Lewis, Mikhail Luginin, Giuliano Liuzzi, Manuel López-Puertas, Miguel López-Valverde, Anni Määttänen, Arnaud Mahieux, Emmanuel Marcq, Javier Martin-Torres, Igor Maslov, Alexander Medvedev, Ehouarn Millour, Boris Moshkin, Michael J. Mumma, Hiromu Nakagawa, Robert E. Novak, Fabrizio Oliva, Dmitry Patsaev

    Nature 569 (7754) E2 2019/05/02

    DOI: 10.1038/s41586-019-1164-9  

    ISSN: 0028-0836

    eISSN: 1476-4687

  42. Publisher Correction: Martian dust storm impact on atmospheric H<inf>2</inf>O and D/H observed by ExoMars Trace Gas Orbiter (Nature, (2019), 568, 7753, (521-525), 10.1038/s41586-019-1097-3) Peer-reviewed

    Ann Carine Vandaele, Oleg Korablev, Frank Daerden, Shohei Aoki, Ian R. Thomas, Francesca Altieri, Miguel López-Valverde, Geronimo Villanueva, Giuliano Liuzzi, Michael D. Smith, Justin T. Erwin, Loïc Trompet, Anna A. Fedorova, Franck Montmessin, Alexander Trokhimovskiy, Denis A. Belyaev, Nikolay I. Ignatiev, Mikhail Luginin, Kevin S. Olsen, Lucio Baggio, Juan Alday, Jean Loup Bertaux, Daria Betsis, David Bolsée, R. Todd Clancy, Edward Cloutis, Cédric Depiesse, Bernd Funke, Maia Garcia-Comas, Jean Claude Gérard, Marco Giuranna, Francisco Gonzalez-Galindo, Alexey V. Grigoriev, Yuriy S. Ivanov, Jacek Kaminski, Ozgur Karatekin, Franck Lefèvre, Stephen Lewis, Manuel López-Puertas, Arnaud Mahieux, Igor Maslov, Jon Mason, Michael J. Mumma, Lori Neary, Eddy Neefs, Andrey Patrakeev, Dmitry Patsaev, Bojan Ristic, Séverine Robert, Frédéric Schmidt, Alexey Shakun, Nicholas A. Teanby, Sébastien Viscardy, Yannick Willame, James Whiteway, Valérie Wilquet, Michael J. Wolff, Giancarlo Bellucci, Manish R. Patel, Jose Juan López-Moreno, François Forget, Colin F. Wilson, Roland Young, Håkan Svedhem, Jorge L. Vago, Daniel Rodionov, Gustavo Alonso-Rodrigo, Sophie Bauduin, Giacomo Carrozzo, Matteo Crismani, Fabiana Da Pieve, Emiliano D’Aversa, Giuseppe Etiope, Didier Fussen, Anna Geminale, Leo Gkouvelis, James Holmes, Benoît Hubert, Yasumasa Kasaba, David Kass, Armin Kleinböhl, Orietta Lanciano, Hiromu Nakagawa, Robert E. Novak, Fabrizio Oliva, Arianna Piccialli, Etienne Renotte, Birgit Ritter, Nick Schneider, Giuseppe Sindoni, Ed Thiemann, Jean Vander Auwera, Paulina Wolkenberg, Roger Yelle, Konstantin Anufreychik, Gabriele Arnold, Natalia Duxbury, Thierry Fouchet, Davide Grassi, Sandrine Guerlet

    Nature 569 (7754) E1 2019/05/02

    DOI: 10.1038/s41586-019-1163-x  

    ISSN: 0028-0836

    eISSN: 1476-4687

  43. Martian dust storm impact on atmospheric H<inf>2</inf>O and D/H observed by ExoMars Trace Gas Orbiter

    Ann Carine Vandaele, Oleg Korablev, Frank Daerden, Shohei Aoki, Ian R. Thomas, Francesca Altieri, Miguel López-Valverde, Geronimo Villanueva, Giuliano Liuzzi, Michael D. Smith, Justin T. Erwin, Loïc Trompet, Anna A. Fedorova, Franck Montmessin, Alexander Trokhimovskiy, Denis A. Belyaev, Nikolay I. Ignatiev, Mikhail Luginin, Kevin S. Olsen, Lucio Baggio, Juan Alday, Jean Loup Bertaux, Daria Betsis, David Bolsée, R. Todd Clancy, Edward Cloutis, Cédric Depiesse, Bernd Funke, Maia Garcia-Comas, Jean Claude Gérard, Marco Giuranna, Francisco Gonzalez-Galindo, Alexey V. Grigoriev, Yuriy S. Ivanov, Jacek Kaminski, Ozgur Karatekin, Franck Lefèvre, Stephen Lewis, Manuel López-Puertas, Arnaud Mahieux, Igor Maslov, Jon Mason, Michael J. Mumma, Lori Neary, Eddy Neefs, Andrey Patrakeev, Dmitry Patsaev, Bojan Ristic, Séverine Robert, Frédéric Schmidt, Alexey Shakun, Nicholas A. Teanby, Sébastien Viscardy, Yannick Willame, James Whiteway, Valérie Wilquet, Michael J. Wolff, Giancarlo Bellucci, Manish R. Patel, Jose Juan López-Moreno, François Forget, Colin F. Wilson, Håkan Svedhem, Jorge L. Vago, Daniel Rodionov, Gustavo Alonso-Rodrigo, Sophie Bauduin, Giacomo Carrozzo, Matteo Crismani, Fabiana Da Pieve, Emiliano D’Aversa, Giuseppe Etiope, Didier Fussen, Anna Geminale, Leo Gkouvelis, James Holmes, Benoît Hubert, Yasumasa Kasaba, David Kass, Armin Kleinböhl, Orietta Lanciano, Hiromu Nakagawa, Robert E. Novak, Fabrizio Oliva, Arianna Piccialli, Etienne Renotte, Birgit Ritter, Nick Schneider, Giuseppe Sindoni, Ed Thiemann, Jean Vander Auwera, Paulina Wolkenberg, Roger Yelle, Konstantin Anufreychik, Gabriele Arnold, Jean Loup Bertaux, Natalia Duxbury, Thierry Fouchet, Davide Grassi, Sandrine Guerlet

    Nature 568 (7753) 521-525 2019/04

    DOI: 10.1038/s41586-019-1097-3  

    ISSN: 0028-0836

    eISSN: 1476-4687

  44. No detection of methane on Mars from early ExoMars Trace Gas Orbiter observations Peer-reviewed

    Oleg Korablev, Ann Carine Vandaele, Franck Montmessin, Anna A. Fedorova, Alexander Trokhimovskiy, François Forget, Franck Lefèvre, Frank Daerden, Ian R. Thomas, Loïc Trompet, Justin T. Erwin, Shohei Aoki, Séverine Robert, Lori Neary, Sébastien Viscardy, Alexey V. Grigoriev, Nikolay I. Ignatiev, Alexey Shakun, Andrey Patrakeev, Denis A. Belyaev, Jean Loup Bertaux, Kevin S. Olsen, Lucio Baggio, Juan Alday, Yuriy S. Ivanov, Bojan Ristic, Jon Mason, Yannick Willame, Cédric Depiesse, Laszlo Hetey, Sophie Berkenbosch, Roland Clairquin, Claudio Queirolo, Bram Beeckman, Eddy Neefs, Manish R. Patel, Giancarlo Bellucci, Jose Juan López-Moreno, Colin F. Wilson, Giuseppe Etiope, Lev Zelenyi, Håkan Svedhem, Jorge L. Vago, Gustavo Alonso-Rodrigo, Francesca Altieri, Konstantin Anufreychik, Gabriele Arnold, Sophie Bauduin, David Bolsée, Giacomo Carrozzo, R. Todd Clancy, Edward Cloutis, Matteo Crismani, Fabiana Da Pieve, Emiliano D’Aversa, Natalia Duxbury, Therese Encrenaz, Thierry Fouchet, Bernd Funke, Didier Fussen, Maia Garcia-Comas, Jean Claude Gérard, Marco Giuranna, Leo Gkouvelis, Francisco Gonzalez-Galindo, Davide Grassi, Sandrine Guerlet, Paul Hartogh, James Holmes, Benoît Hubert, Jacek Kaminski, Ozgur Karatekin, Yasumasa Kasaba, David Kass, Igor Khatuntsev, Armin Kleinböhl, Nikita Kokonkov, Vladimir Krasnopolsky, Ruslan Kuzmin, Gaétan Lacombe, Orietta Lanciano, Emmanuel Lellouch, Stephen Lewis, Mikhail Luginin, Giuliano Liuzzi, Manuel López-Puertas, Miguel López-Valverde, Anni Määttänen, Arnaud Mahieux, Emmanuel Marcq, Javier Martin-Torres, Igor Maslov, Alexander Medvedev, Ehouarn Millour, Boris Moshkin, Michael J J. Mumma, Hiromu Nakagawa, Robert E. Novak, Fabrizio Oliva, Dmitry Patsaev

    Nature 568 (7753) 517-520 2019/04

    DOI: 10.1038/s41586-019-1096-4  

    ISSN: 0028-0836

    eISSN: 1476-4687

  45. Methane on Mars: New insights into the sensitivity of CH(4 )with the NOMAD/ ExoMars spectrometer through its first in-flight calibration Peer-reviewed

    Liuzzi, Giuliano, Villanueva, Geronimo L, Mumma, Michael J, Smith, Michael D, Daerden, Frank, Ristic, Bojan, Thomas, Ian, Vandaele, Ann Carine, Patel, Manish R, Lopez-Moreno, José-Juan, Bellucci, Giancarlo, NOMAD Team (Vandaele, Ann Carine, Lopez Moreno, Jose Juan, Bellucci, Giancarlo, Patel, Manish, Allen, Mark, Alonso-Rodrigo, Gustavo, Altieri, Francesca, Aoki, Shohei, Bauduin, Sophie, Bolsée, David, Clancy, Todd, Cloutis, Edward, Daerden, Frank, D'Aversa, Emiliano, Depiesse, Cédric, Erwin, Justin, Fedorova, Anna, Formisano, Vittorio, Funke, Bernd, Fussen, Didier, Garcia-Comas, Maia, Geminale, Anna, Gérard, Jean-Claude, Gillotay, Didier, Giuranna, Marco, Gonzalez-Galindo, Francisco, Hewson, Will, Homes, James, Ignatiev, Nicolai, Kaminski, Jacek, Karatekin, Ozgur, Kasaba, Yasumasa, Lanciano, Orietta, Lefèvre, Franck, Lewis, Stephen, López-Puertas, Manuel, López-Valverde, Miguel, Mahieux, Arnaud, Mason, Jon, Mc Connell, Jack, Mumma, Mike, Nakagawa, Hiromu, Neary, Lori, Neefs, Eddy, Novak, R, Oliva, Fabrizio, Piccialli, Arianna, Renotte, Etienne, Robert, Severine, Sindoni, Giuseppe, Smith, Mike, Stiepen, Arnaud, Thomas, Ian, Trokhimovskiy, Alexander, Vander Auwera, Jean, Villanueva, Geronimo, Viscardy, Sébastien, Whiteway, Jim, Willame, Yannick, Wilquet, Valérie, Wolff, Michael, Wolkenberg, Paulina, Tech Team, Alonso-Rodrigo, Gustavo, Aparicio del Moral, Beatriz, Barzin, Pascal, Beeckman, Bram, BenMoussa, Ali, Berkenbosch, Sophie, Biondi, David, Bonnewijn, Sabrina, Candini, Gian Paolo, Clairquin, Roland, Cubas, Javier, Giordanengo, Boris, Gissot, Samuel, Gomez, Alejandro, Hathi, Brijen, Jeronimo Zafra, Jose, Leese, Mark, Maes, Jeroen, Mazy, Emmanuel, Mazzoli, Alexandra, Meseguer, Jose, Morales, Rafael, Orban, Anne, Pastor-Morales, M, Perez-grande, Isabel, Queirolo, Claudio, Ristic, Bojan, Rodriguez Gomez, Julio, Saggin, Bortolino, Samain, Valérie, Sanz Andres, Angel, Sanz, Rosario, Simar, Juan-Felipe, Thibert, Tanguy

    ICARUS 321 671-690 2019/03

    DOI: 10.1016/j.icarus.2018.09.021  

    ISSN: 0019-1035

    eISSN: 1090-2643

  46. Planetary atmospheric monitoring with the Tohoku University Haleakala telescopes: current status and future plan

    Sakanoi, T, M. Kagitani, H. Nakagawa, Y. Hirahara, M. Akiyama, T. MIyata, Y. Kasaba, S. Okano

    Proceedings of Symposium on Planetary Science 2019 2019

  47. Exploring the Atmosphere of Mars with Remote Observations and Numerical Studies: Belgium-Japan partnership 2017-2019, and the Next

    Kasaba, Y, H. Nakagawa, H. Sagawa, T. Kuroda, T. Imamura, Y. Kasai, A. Yamazaki, T.M. Sato, H. Maezawa, M. Taguchi, H. Kashimura, I. Murata, N. Terada, T. Sakanoi, A.C. Vandaele, S. Aoki, S. Robert, V. Wilquet, A. Mahieux, S. Bauduin, F. Daerden, L. Neary, S. Viscardy, P.F. Coheur

    Proceedings of Symposium on Planetary Science 2019 2019

  48. Development of PLANETS telescope and visible-infrared spectrometer for monitoring of planetary and exoplanetary atmospheres Peer-reviewed

    Sakanoi T, Kuhn J, Berdyugina S, Emilio M, Kagitani M, Hirahara Y, Nakagawa H, Kasaba Y, Obara T, Okano S, Scholl I, Berdyugin A, Piirola V

    Proceedings of SPIE - The International Society for Optical Engineering: Ground-based and Airborne Telescopes VII 10700 107004J 2018/07

    DOI: 10.1117/12.2312363  

    ISSN: 0277-786X

    eISSN: 1996-756X

  49. Loss of the Martian atmosphere to space: Present-day loss rates determined from MAVEN observations and integrated loss through time

    B.M. Jakosky, D. Brain, M. Chaffin, S. Curry, J. Deighan, J. Grebowsky, J. Halekas, F. Leblanc, R. Lillis, J.G. Luhmann, L. Andersson, N. Andre, D. Andrews, D. Baird, D. Baker, J. Bell, M. Benna, D. Bhattacharyya, S. Bougher, C. Bowers, P. Chamberlin, J.-Y. Chaufray, J. Clarke, G. Collinson, M. Combi, J. Connerney, K. Connour, J. Correira, K. Crabb, F. Crary, T. Cravens, M. Crismani, G. Delory, R. Dewey, G.DiBraccio, C.Dong, Y.Dong, P.Dunn, H.Egan, M.Elrod, S. England, F. Eparvier, R. Ergun, A. Eriksson, T. Esman, J. Espley, S. Evans, K. Fallows, X. Fang, M. Fillingim, C. Flynn, A. Fogle, C. Fowler, J. Fox, M. Fujimoto, P. Garnier, Z. Girazian, H. Groeller, J. Gruesbeck, O. Hamil, K.G. Hanley, T. Hara, Y. Harada, J. Hermann, M. Holmberg, G. Holsclaw, S.Houston, S.Inui, S.Jain, R.Jolitz, A.Kotova, T.Kuroda, D.Larson, Y.Lee, C.Lee, F.Lefevre, C.Lentz, D.Lo, R. Lugo, Y.-J. Ma, P. Mahaffy, M.L. Marquette, Y. Matsumoto, M. Mayyasi, C. Mazelle, W. McClintock, J. McFadden, A. Medvedev, M. Mendillo, K. Meziane, Z. Milby, D. Mitchell, R. Modolo, F. Montmessin, A. Nagy, H. Nakagawa, C. Narvaez, K. Olsen, D. Pawlowski, W. Peterson, A. Rahmati, K. Roeten, N. Romanelli, S. Ruhunusiri, C. Russell, S. Sakai, N. Schneider, K. Seki, R. Sharrar, S. Shaver, D.E. Siskind, M. Slipski, Y. Soobiah, M. Steckiewicz, M.H. Stevens, I. Stewart, A. Stiepen, S. Stone, V. Tenishev, N. Terada, K. Terada, E. Thiemann, R. Tolson, G. Toth, J. Trovato, M.Vogt, T.Weber, P.Withers, S.Xu, R.Yelle, E.Yig ̆it, R. Zurek

    Icarus 2018/05

  50. Mesospheric CO2 ice clouds on Mars observed by Planetary Fourier Spectrometer onboard Mars Express Peer-reviewed

    S. Aoki, Y. Sato, M. Giuranna, P. Wolkenberg, T. M. Sato, H. Nakagawa, Y. Kasaba

    Icarus 302 175-190 2018/03/01

    Publisher: Academic Press Inc.

    DOI: 10.1016/j.icarus.2017.10.047  

    ISSN: 1090-2643 0019-1035

    eISSN: 1090-2643

  51. Haleakala telescopes: ハレアカラ望遠鏡と将来PLANETS望遠鏡による惑星大気・系外惑星研究の新展開

    坂野井 健, 鍵谷将人, 中川広務, 小原隆博, 笠羽康正, 平原靖大, 山田学, 岡野章一, 秋山正幸, Jeff Kuhn, Svetalana Berdyugina, Marcelo Emiliob, Gill Moretto

    Proceedings of Symposium on Planetary Science 2018 2018

  52. High-contrast apodization baffle for instruments onboard solar system exploration missions Peer-reviewed

    Enya, K, A. Yamazaki, H. Nakagawa, N. Terada, K. Seki, N. Fujishiro, A. Motoyoshi, O. Moriwaki

    Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III 107065I 2018

    DOI: 10.1117/12.2312577  

    ISSN: 0277-786X

    eISSN: 1996-756X

  53. Stringent upper limit of CH4 on Mars based on SOFIA/EXES observations Peer-reviewed

    S. Aoki, M. J. Richter, C. DeWitt, A. Boogert, T. Encrenaz, H. Sagawa, H. Nakagawa, A. C. Vandaele, M. Giuranna, T. K. Greathouse, T. Fouchet, A. Geminale, G. Sindoni, M. McKelvey, M. Case, Y. Kasaba

    Astronomy and Astrophysics aa30903 (17) 2017/11

  54. Optical and IR observations of planetary and exoplanetary atmospheres Peer-reviewed

    Takeshi Sakanoi, Masato Kagitani, Hiromu Nakagawa, Takahiro Obara, Yasumasa Kasaba, Shoichi Okano, Jeff R. Kuhn, Svetlana V. Berdyugina, Isabelle F. Scholl, Mizuki Yoneda

    SPIE 2017/02/08

    DOI: 10.1117/2.1201612.006817  

  55. MAVEN NGIMS observations of atmospheric gravity waves in the Martian thermosphere Peer-reviewed

    S. L. England, G. Liu, E. Yigit, P. R. Mahaffy, M. Elrod, M. Benna, H. Nakagawa, N. Terada, B. Jakosky

    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122 (2) 2310-2335 2017/02

    DOI: 10.1002/2016JA023475  

    ISSN: 2169-9380

    eISSN: 2169-9402

  56. Global distribution and parameter dependences of gravity wave activity in the Martian upper thermosphere derived from MAVEN/NGIMS observations Peer-reviewed

    Naoki Terada, Francois Leblanc, Hiromu Nakagawa, Alexander S. Medvedev, Erdal Yigit, Takeshi Kuroda, Takuya Hara, Scott L. England, Hitoshi Fujiwara, Kaori Terada, Kanako Seki, Paul R. Mahaffy, Meredith Elrod, Mehdi Benna, Joseph Grebowsky, Bruce M. Jakosky

    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122 (2) 2374-2397 2017/02

    DOI: 10.1002/2016JA023476  

    ISSN: 2169-9380

    eISSN: 2169-9402

  57. Current status of Haleakala Observatory, Instrumentation and its future perspective

    Sakanoi, T, M. Kagitani, T. Obara, Y. Yoneda, S. Okano, H. Nakagawa, Y. Kasaba

    Proceedings of Symposium on Planetary Science 2017 2017

  58. Development of Near-infrared Spectrometer MacrOmega for the Martian Moon’s Sample Return Mission MMX

    Sakanoi, T, T. Iwata, H. Nakagawa, J-P. Bibring, V. Hamm, C. Pilorget, T. Nakamura, S. Aoki, T. M. Sato, Y. Kasaba

    Proceedings of the 31st ISTS 2017

  59. A STUDY OF NEAR-INFRARED HYPERSPECTRAL IMAGING OF MARTIAN MOONS BY NIRS4/MACROMEGA ONBOARD MMX SPACECRAFT

    T. Iwata, T. Sakanoi, H. Nakagawa, J-P. Bibring, V. Hamm, C. Pilorget, T. Nakamura, S. Aoki, T. M. Sato, S. Crites, Y. Kasaba, T. Imamura, A. Yamazaki

    Lunar and Planetary Science XLVIII 2017

  60. IR heterodyne spectrometer MILAHI for continuous monitoring observatory of Martian and Venusian atmospheres at Mt. Haleakala, Hawaii Peer-reviewed

    Hiromu Nakagawa, Shohei Aoki, Hideo Sagawa, Yasumasa Kasaba, Isao Murata, Guido Sonnabend, Manuela Sornig, Shoichi Okano, Jeffrey R. Kuhn, Joseph M. Ritter, Masato Kagitani, Takeshi Sakanoi, Makoto Taguchi, Kosuke Takami

    PLANETARY AND SPACE SCIENCE 126 34-48 2016/07

    DOI: 10.1016/j.pss.2016.04.002  

    ISSN: 0032-0633

  61. Comparison of the Martian thermospheric density and temperature from IUVS/MAVEN data and general circulation modeling Peer-reviewed

    Alexander S. Medvedev, Hiromu Nakagawa, Chris Mockel, Erdal Yigit, Takeshi Kuroda, Paul Hartogh, Kaori Terada, Naoki Terada, Kanako Seki, Nicholas M. Schneider, Sonal K. Jain, J. Scott Evans, Justin I. Deighan, William E. McClintock, Daniel Lo, Bruce M. Jakosky

    GEOPHYSICAL RESEARCH LETTERS 43 (7) 3095-3104 2016/04

    DOI: 10.1002/2016GL068388  

    ISSN: 0094-8276

    eISSN: 1944-8007

  62. Summary of JSPS program on international collaboration for planetary plasma and atmospheric dynamics research based on Hawaiian planetary telescopes

    Sakanoi, T, M. Kagitani, H. Nakagawa, N. Terada, T. Kuroda, Y. Kasaba, T. Obara, H. Misawa, F. Tsuchiya

    Proceedings of Symposium on Planetary Science 2016 2016

  63. Seasonal variation of the HDO/H2O ratio in the atmosphere of Mars at the middle of northern spring and beginning of northern summer Peer-reviewed

    Shohei Aoki, Hiromu Nakagawa, Hideo Sagawa, Marco Giuranna, Giuseppe Sindoni, Alessandro Aronica, Yasumasa Kasaba

    ICARUS 260 7-22 2015/11

    DOI: 10.1016/j.icarus.2015.06.021  

    ISSN: 0019-1035

    eISSN: 1090-2643

  64. Search for hydrogen peroxide in the Martian atmosphere by the Planetary Fourier Spectrometer onboard Mars Express Peer-reviewed

    Shohei Aoki, Marco Giuranna, Yasumasa Kasaba, Hiromu Nakagawa, Giuseppe Sindoni, Anna Geminale, Vittorio Formisano

    ICARUS 245 (245) 177-183 2015/01

    DOI: 10.1016/j.icarus.2014.09.034  

    ISSN: 0019-1035

    eISSN: 1090-2643

  65. Seasonal variation of HDO/H2O ratio in the atmosphere of Mars observed by SUBARU/IRCS 633 andd MEX/PFS

    Aoki S, Giuranna M, Sindoni G, Nakagawa H, Sagawa H, Aronica A, Kasaba Y

    Proceedings of European Planetary Science Congress 426 2014/09

  66. Erratum: UV optical measurements of the Nozomi spacecraft interpreted with a two-component LIC-flow model (Astronomy and Astrophysics (2008) 491 (29-41) DOI: 10.1051/0004-6361:20079241) Peer-reviewed

    H. Nakagawa, M. Bzowski, A. Yamazaki, H. Fukunishi, S. Watanabe, Y. Takahashi, M. Taguchi, I. Yoshikawa, K. Shiomi, M. Nakamura

    Astronomy and Astrophysics 566 2014

    Publisher: EDP Sciences

    DOI: 10.1051/0004-6361/20079241e  

    ISSN: 1432-0746 0004-6361

  67. 火星大気散逸観測オービター計画の検討

    松岡 彩子, 阿部 琢美, 関 華奈子, 寺田 直樹, 石坂 圭吾, 小倉 聡司, 川勝 康弘, 熊本 篤志, 栗原 純一, 坂野井 健, 田口 真, 中川 広務, 平原 聖文, 二穴 喜文, 八木谷 聡, 山崎 敦, 横田 勝一郎

    第14回宇宙科学シンポジウム 講演集 2014

  68. 惑星大気散逸光学撮像観測のための迷光除去システムの基礎開発

    中川 広務, 山崎 敦, 塩谷 圭吾, 田口 真, 坂野井 健, 寺田 直樹, 関 華奈子, 松岡 彩子

    第14回宇宙科学シンポジウム 講演集 2014

  69. Development of infrared Echelle spectrograph and mid-infrared heterodyne spectrometer on a small telescope at Haleakala, Hawaii for planetary observation Peer-reviewed

    Takeshi Sakanoi, Yasumasa Kasaba, Masato Kagitani, Hiromu Nakagawa, Jeff Kuhn, Shoichi Okano

    GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY V 9147 2014

    DOI: 10.1117/12.2055877  

    ISSN: 0277-786X

    eISSN: 1996-756X

  70. Venus' upper atmospheric dynamical structure from ground-based observations shortly before and after Venus' inferior conjunction 2009 Peer-reviewed

    M. Sornig, G. Sonnabend, D. Stupar, P. Kroetz, H. Nakagawa, I. Mueller-Wodarg

    ICARUS 225 (1) 828-839 2013/07

    DOI: 10.1016/j.icarus.2012.12.005  

    ISSN: 0019-1035

  71. Comparison of general circulation model atmospheric wave simulations with wind observations of venusian mesosphere Peer-reviewed

    Hiromu Nakagawa, Naoya Hoshino, Manuela Sornig, Yasumasa Kasaba, Guido Sonnabend, Dusan Stupar, Shohei Aoki, Isao Murata

    Icarus 225 (1) 840-849 2013/07

    DOI: 10.1016/j.icarus.2013.02.029  

    ISSN: 0019-1035 1090-2643

    eISSN: 1090-2643

  72. 火星大気散逸探査検討WG, 火星大気散逸観測オービター計画の検討

    松岡彩子, 阿部琢美, 関華奈子, 寺田直樹, 石坂圭吾, 熊本篤志, 栗原純一, 坂野井健, 田口真, 中川広務, 平原聖文, 二穴喜文, 八木谷聡, 山崎敦, 横田勝一郎

    火星大気散逸探査検討WG, 火星大気散逸観測オービター計画の検討 2013

  73. Synthetic Aperture Radar Processing of Kaguya Lunar Radar Sounder Data for Lunar Subsurface Imaging Peer-reviewed

    Takao Kobayashi, Jung-Ho Kim, Seung Ryeol Lee, Atsushi Kumamoto, Hiromu Nakagawa, Shoko Oshigami, Hiroshi Oya, Yasushi Yamaguchi, Atsushi Yamaji, Takayuki Ono

    IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 50 (6) 2161-2174 2012/06

    DOI: 10.1109/TGRS.2011.2171349  

    ISSN: 0196-2892

    eISSN: 1558-0644

  74. The Lunar Radar Sounder (LRS) Onboard the KAGUYA (SELENE) Spacecraft

    T. Ono, A. Kumamoto, Y. Kasahara, Y. Yamaguchi, A. Yamaji, T. Kobayashi, S. Oshigami, H. Nakagawa, Y. Goto, K. Hashimoto, Y. Omura, T. Imachi, H. Matsumoto, H. Oya

    SPACE SCIENCE REVIEWS 154 (1-4) 145-192 2010/07

    DOI: 10.1007/s11214-010-9673-8  

    ISSN: 0038-6308

    eISSN: 1572-9672

  75. 東北大における惑星大気研究:将来地上・探査機観測に向けて

    笠羽康正, 岡野章一, 村田功, 坂野井健, 寺田直樹, 藤原均, 中川広務, 鍵谷将人, 垰千尋, 寺田香織

    第24回大気圏シンポジウム講演集 2010

  76. 高分散分光観測による微量組成成分を軸とした火星大気研究:現状と展望

    笠羽康正, 中川広務, 青木翔平, 上野宗孝, 村田功, 坂野井健, 岡野章一, 佐藤毅彦

    第10回宇宙科学シンポジウム講演集 2010

  77. Searches for volcanic or crustal gas in the recent Martian atmosphere by ground-based observation

    Hiromu Nakagawa, Yasumasa Kasaba, Shohei Aoki, Isao Murata, Shoichi Okano, Hiroyuki Maezawa, Hideo Sagawa, Yasuko Kasai

    COSPAR 2010 general Assembly 2010

  78. Search of SO2 in the Martian atmosphere by ground-based submillimeter observation Peer-reviewed

    Hiromu Nakagawa, Yasumasa Kasaba, Hiroyuki Maezawa, Akira Hashimoto, Hideo Sagawa, Isao Murata, Shoichi Okano, Shohei Aoki, Nayuta Moribe, Akira Mizuno, Munetake Momose, Toshikazu Ohnishi, Norikazu Mizuno, Tomoo Nagahama

    PLANETARY AND SPACE SCIENCE 57 (14-15) 2123-2127 2009/12

    DOI: 10.1016/j.pss.2009.10.001  

    ISSN: 0032-0633

  79. Distribution of the subsurface reflectors of the western nearside maria observed from Kaguya with Lunar Radar Sounder Peer-reviewed

    Shoko Oshigami, Yasushi Yamaguchi, Atsushi Yamaji, Takayuki Ono, Atsushi Kumamoto, Takao Kobayashi, Hiromu Nakagawa

    GEOPHYSICAL RESEARCH LETTERS 36 (L18202) doi:10.1029/2009GL039835 2009/09

    DOI: 10.1029/2009GL039835  

    ISSN: 0094-8276

  80. Lunar Radar Sounder Observations of Subsurface Layers Under the Nearside Maria of the Moon Peer-reviewed

    Takayuki Ono, Atsushi Kumamoto, Hiromu Nakagawa, Yasushi Yamaguchi, Shoko Oshigami, Atsushi Yamaji, Takao Kobayashi, Yoshiya Kasahara, Hiroshi Oya

    SCIENCE 323 (5916) 909-912 2009/02

    DOI: 10.1126/science.1165988  

    ISSN: 0036-8075

  81. Challenge of MELOS: Martian atmospheric escape and evolution Peer-reviewed

    Terada, N, A. Matsuoka, K. Seki, A. Yamazaki, Y. Futaana, S. Yokota, Y. Saito, H. Nakagawa, Y. Kasaba, S.Tachibana, J. Ogawa, T. Satoh, The MELOS Working Group

    Planetary People (Yuu-Sei-Jin) 18 73-75 2009

  82. Latitudinal dependence of the solar wind density derived from remote sensing measurements using interplanetary Lyman alpha emission from 1999 to 2002 Peer-reviewed

    Hiromu Nakagawa, Hiroshi Fukunishi, Shigeto Watanabe, Yukihiro Takahashi, Makoto Taguchi, Rosine Lallement

    EARTH PLANETS AND SPACE 61 (3) 373-382 2009

    ISSN: 1880-5981

  83. UV optical measurements of the Nozomi spacecraft interpreted with a two-component LIC-flow model Peer-reviewed

    H. Nakagawa, M. Bzowski, A. Yamazaki, H. Fukunishi, S. Watanabe, Y. Takahashi, M. Taguchi, I. Yoshikawa, K. Shiomi, M. Nakamura

    ASTRONOMY & ASTROPHYSICS 491 (1) 29-41 2008/11

    DOI: 10.1051/0004-6361:20079241  

    ISSN: 1432-0746

  84. Solar cycle dependence of interplanetary Lyman α emission and solar wind anisotropics derived from NOZOMI/UVS and SOHO/SWAN observations Peer-reviewed

    Hiromu Nakagawa, Hiroshi Fukunishi, Yukihiro Takahashi, Shigeto Watanabe, Makoto Taguchi, Jean-Loup Bertaux, Rosine Lallement, Eric Quémerais

    Journal of Geophysical Research: Space Physics 108 (10) 2003

    Publisher: Blackwell Publishing Ltd

    DOI: 10.1029/2003JA009882  

    ISSN: 2169-9402

Show all ︎Show first 5

Misc. 36

  1. Mission Operation Study of Martian Moons eXploration (MOWT)

    中村智樹, 池田人, 竹尾洋介, 神山徹, 中川広務, 松本晃治, 千秋博紀, 亀田真吾, 寺田直樹, 岩田隆浩, 横田勝一郎, 尾崎直哉, 平田成, 宮本英昭, 小川和律, 草野広樹, 小林正規, 大木優介, BARUCCI Antonietta, SAWYER Eric, LAWRENCE David J., CHABOT Nancy L., PEPLOWSKI Patrick N., ULAMEC Stephan, MICHEL Patrick, 今田高峰, 今井茂, 石田初美, 尾川順子, 倉本圭, 安光亮一郎, 大嶽久志, 川勝康弘

    宇宙科学技術連合講演会講演集(CD-ROM) 67th 2023

    ISSN: 1884-1945

  2. Mission Operation Study of Martian Moons eXploration (MOWT)

    竹尾洋介, 中村智樹, 池田人, 神山徹, 中川広務, 松本晃治, 千秋博紀, 亀田真吾, 寺田直樹, 岩田隆浩, 横田勝一郎, 尾崎直哉, GONZALEZ-FRANQUESA Ferran, 平田成, 宮本英昭, 小川和律, 草野広樹, 小林正規, 大木優介, BARESI Nicola, BARUCCI Antonietta, SAWYER Eric, LAWRENCE David J., CHABOT Nancy L., PEPLOWSKI Patrick N., ULAMEC Stephan, MICHEL Patrick, 今田高峰, 今井茂, 石田初美, 尾川順子, 倉本圭, 安光亮一郎, 大嶽久志, 川勝康弘

    宇宙科学技術連合講演会講演集(CD-ROM) 66th 2022

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  3. Remote sensing of surface pressure on Mars by CO2 2 μm absorption band observed by Mars Express/OMEGA

    風間暁, 笠羽康正, 中川広務, 青木翔平, 黒田剛史, 小暮李成, 鈴木湧平, 村田功, 吉田奈央

    地球電磁気・地球惑星圏学会総会及び講演会(Web) 150th 2021

  4. Validation of a new atmospheric retrieval technique for the vertical profiles of Martian atmosphere by limb observations

    小暮李成, 青木翔平, MAHIEUX Arnaud, 中川広務, 黒田剛史, 笠羽康正, 吉田奈央, 岩渕弘信, 出村裕英

    地球電磁気・地球惑星圏学会総会及び講演会(Web) 150th 2021

  5. 火星RSLからの水放出シミュレーション

    黒田剛史, 黒川宏之, 青木翔平, 中川広務

    日本気象学会大会講演予稿集(CD-ROM) (120) 2021

  6. 火星古気候のGCMシミュレーション:流水地形の再現

    鎌田有紘, 黒田剛史, 笠羽康正, 寺田直樹, 中川広務

    日本気象学会大会講演予稿集(CD-ROM) (120) 2021

  7. 火星衛星探査計画MMX:詳細設計段階における科学検討の深化

    倉本圭, 倉本圭, 川勝康弘, 藤本正樹, BARUCCI Maria Antonella, 玄田英典, HELBERT Joern, 平田成, 今村剛, 亀田真吾, 小林正規, 草野広樹, LAWRENCE David J., 松本晃治, MICHEL Patrick, 宮本英昭, 中川広務, 中村智樹, 小川和律, 小川和律, 大嶽久志, 尾崎正伸, RUSSELL Sara, 佐々木晶, 澤田弘崇, 千秋博紀, 寺田直樹, ULAMEC Stephan, 臼井寛裕, 和田浩二, 横田勝一郎

    日本惑星科学会秋季講演会予稿集(Web) 2021 2021

  8. Mission Operation Study of Martian Moons eXploration (MOWT)

    中村智樹, 池田人, 竹尾洋介, 神山徹, 中川広務, 松本晃治, 千秋博紀, 亀田真吾, 寺田直樹, 岩田隆浩, 横田勝一郎, 尾崎直哉, GONZALEZ-FRANQUESA Ferran, 平田成, 宮本英昭, 小川和律, 草野広樹, 小林正規, 大木優介, BARESI Nicola, BARUCCI Antonietta, SAWYER Eric, LAWRENCE David J., CHABOT Nancy L., PEPLOWSKI Patrick N., ULAMEC Stephan, MICHEL Patrick, 今田高峰, 今井茂, 石田初美, 尾川順子, 倉本圭, 安光亮一郎, 大嶽久志, 川勝康弘

    宇宙科学技術連合講演会講演集(CD-ROM) 65th 2021

    ISSN: 1884-1945

  9. 戦略的火星探査:周回機による火星宇宙天気・気候・水環境探査計画(MIM)

    関華奈子, 山崎敦, 臼井寛裕, 寺田直樹, 今村剛, 前澤裕之, 横田勝一郎, 二穴喜文, 中川広務, 松岡彩子, 笠原慧, 齋藤義文

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  10. 戦略的火星探査:周回・探査技術実証機による火星宇宙天気・気候・水環境探査計画

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  11. 火星における宇宙天気・宇宙気候探査計画

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  12. 特集「火星圏のサイエンス」ExoMars TGOと火星衛星探査計画MMXによる火星大気観測

    青木翔平, 中川広務, 小郷原一智, 神山徹, 今村剛, 笠羽康正

    日本惑星科学会誌遊星人 27 (3) 224 2018

  13. Martian Moons eXploration MMX elucidating the formation of habitable planets in the solar system

    Kuramoto K., Morota T., Nagaoka H., Nakagawa H., Nakamura T., Ogawa K., Otake H., Ozaki M., Sasaki S., Senshu H., Tachibana S., Kawakatsu Y., Terada N., Usui T., Wada K., Watanabe S., MMX study team, Fujimoto M., Genda H., Hirata N., Imamura T., Kameda S., Matsumoto K., Miyamoto H.

    Planetary People - The Japanese Society for Planetary Sciences 27 (3) 207-215 2018

    Publisher: The Japanese Society for Planetary Sciences

    DOI: 10.14909/yuseijin.27.3_207  

    ISSN: 0918-273X

  14. あかつきIR2による金星昼面観測

    佐藤毅彦, 佐藤隆雄, 中村正人, 上野宗孝, 鈴木睦, はしもと じょーじ, 榎本孝之, 高見康介, 中川広務, 笠羽康正

    地球電磁気・地球惑星圏学会総会及び講演会(Web) 140th 2016

  15. 火星大気散逸探査(のぞみ後継機)のミッション計画とシステム検討

    松岡彩子, 関華奈子, 寺田直樹, 横田勝一郎, 山崎敦, 阿部琢美, 今村剛, 川勝康弘, 二穴喜文, 平原聖文, 石坂圭吾, 熊本篤志, 栗原純一, 中川広務, 坂野井健, 田口真, 小郷原一智

    日本地球惑星科学連合大会予稿集(Web) 2015 ROMBUNNO.PPS05‐01 (WEB ONLY) 2015

  16. O1-01 超高分解能赤外レーザヘテロダイン分光器による惑星大気の連続観測(口頭発表セッション1 惑星大気,口頭発表)

    中川 広務, 青木 翔平, 佐川 英夫, 笠羽 康正, 村田 功, Sonnabend Guido, 岡野 章一

    日本惑星科学会秋期講演会予稿集 2014 "O1-01" 2014/09/10

    Publisher: 日本惑星科学会

  17. 南極2.5m赤外線望遠鏡計画

    市川隆, 小原隆博, 笠羽康正, 吉田和哉, 持田灯, 板由房, 坂野井健, 中川広務, 大風翼, 沖田博文, 小山拓也, 中井直正, 瀬田益道, 高遠徳尚, 本山秀明, 宮岡宏, 金高義, 香川博之

    日本天文学会年会講演予稿集 2013 264 2013/08/20

    ISSN: 1347-0639

  18. ALMAを利用した太陽系天体観測セミナー

    Hideo Sagawa, Hiromu Nakagawa, Hiroyuki Maezawa

    遊星人 22 (4) 280-283 2013

    Publisher: The Japanese Society for Planetary Sciences

    ISSN: 0918-273X

  19. P1-05 Global mapping of the lunar surface albedo at 5 MHz by Kaguya

    Kumamoto A., Nakagawa H., Ono T., Kobayashi T., Haruyama J.

    Abstracts Fall Meeting of the Japanese Society for Planetary Sciences 2012 100-100 2012/10/24

    Publisher: The Japanese Society for Planetary Sciences

  20. C154 火星大気散逸探査(のぞみ後継探査)(スペシャル・セッション「惑星大気科学の課題と将来の探査計画」,口頭発表)

    寺田 直樹, 松岡 彩子, 関 華奈子, 阿部 琢美, 石坂 圭吾, 熊本 篤志, 栗原 純一, 坂野井 健, 田口 真, 中川 広務, 二穴 喜文, 八木谷 聡, 山崎 敦, 横田 勝一郎, 火星大気散逸探査検討WG

    大会講演予講集 102 135-135 2012

    Publisher: 日本気象学会

  21. NMA F号機の単一鏡化によるミリ波惑星大気観測プロジェクト

    前澤裕之, 水野亮, 長濱智生, 森部那由多, 飯野孝浩, 徳丸宗利, 川辺良平, 高橋茂, 半田一幸, 岩下浩幸, 前川淳, 大西利和, 佐川英夫, 笠井康子, 杉田精司, 羽村太雅, 笠羽康正, 中川広務

    日本天文学会年会講演予稿集 2011 2011

    ISSN: 1347-0639

  22. A letter of appreciation for the support to the students of the Planetary and Space Physics group, Department of Geophysics, Graduate School of Science, Tohoku University

    Tsuchiya F, Sato Y, Katoh Y, Nakagawa H, Kuroda T, Okano S, Ono T, Kasaba Y, Misawa H, Kumamoto A, Sakanoi T, Terada N, Murata I

    Planetary People 20 (3) 228-229 2011

    Publisher: The Japanese Society for Planetary Sciences

    ISSN: 0918-273X

  23. High resolution laser spectroscopy in mid-infrared

    Kasaba, Y, H. Nakagawa, K. Aoki, I. Murata, T. Sakanoi, S. Okano

    Kogaku 39 (12) 595-597 2010

  24. LRS data analysis methods for the detection of lunar subsurface echoes

    WATANABE Shiho, WATANABE Toshiki, OSHIGAMI Shoko, YAMAGUCHI Yasushi, YAMAJI Athushi, ONO Takayuki, KUMAMOTO Athushi, NAKAGAWA Hiromu, KOBAYASHI Takao

    121 256-259 2009/11/23

  25. 127 月レーダサウンダー(LRS)データに基づく月の海の地下反射面分布(オーラルセッション5 月III)

    押上 祥子, 山口 靖, 渡辺 志穂, 山路 敦, 小野 高幸, 熊本 篤志, 中川 広務, 小林 敬生

    日本惑星科学会秋期講演会予稿集 2009 27-27 2009/09/28

    Publisher: 日本惑星科学会

  26. P314 High-resolution spectroscopy from Mars orbiter for minor atmospheric components

    Kasaba Y., Nakagawa H., Aoki S., Murata I., Ueno M., Sato T., Sakanoi T.

    Abstracts Fall Meeting of the Japanese Society for Planetary Sciences 2009 114-114 2009/09/28

    Publisher: The Japanese Society for Planetary Sciences

  27. P210 かぐやLRSデータを用いた月の溶岩噴出量の見積(ポスターセッション2)

    渡辺 志穂, 押上 祥子, 山口 靖, 山路 敦, 小野 高幸, 熊本 篤志, 中川 広務, 小林 敬生

    日本惑星科学会秋期講演会予稿集 2009 95-95 2009/09/28

    Publisher: 日本惑星科学会

  28. 113 SELENE搭載LISM/地形カメラの成果と今後の展望(オーラルセッション3 月I)

    春山 純一, 大竹 真紀子, 松永 恒雄, 木村 淳, 佐々木 晶, 浅田 智朗, 出村 裕英, 平田 成, 本田 親寿, 小川 佳子, 北里 宏平, 寺薗 淳也, 道上 達弘, 山本 聡, 白尾 元理, 中村 良介, 武田 弘, 荒井 朋子, 宮本 英昭, 岩崎 晃, 杉原 孝充, 諸田 智克, 横田 康弘, 川村 太一, 山口 靖, 山路 敦, 佐伯 和人, 長谷中 利昭, 廣井 孝弘, 荒木 博志, 野田 寛大, 石原 吉明, 斎藤 義文, 横田 勝一郎, 細川 秀夫, 渋谷 秀敏, 松島 政貴, 清水 久芳, 小野 高幸, 熊本 篤志, 中川 広務

    日本惑星科学会秋期講演会予稿集 2009 13-13 2009/09/28

    Publisher: 日本惑星科学会

  29. 「かぐや」搭載月レーダーサウンダー(LRS)による月地下探査及び自然波動観測

    熊本篤志, 小野高幸, 中川広務, 山口靖, 押上祥子, 山路敦, 小林敬生, 笠原禎也, 大家寛

    日本惑星科学会誌 遊星人 18 (1) 18-24 2009/03/25

    Publisher: The Japanese Society for Planetary Sciences

    ISSN: 0918-273X

  30. MELOS火星複合探査の科学検討 MELOSが挑む「火星大気散逸・大気進化科学」

    寺田直樹, 松岡彩子, 関華奈子, 山崎敦, 二穴喜文, 横田勝一郎, 斎藤義文, 中川広務, 笠羽康正, 橘省吾, 尾 川順子, 佐藤毅彦, MELOSワーキンググループ

    日本惑星科学会誌 遊星人 2009/03/25

  31. Latitudinal dependence of the solar wind density derived from remote sensing measurements using interplanetary Lyman α emission from 1999 to 2002

    NAKAGAWA Hiromu, FUKUNISHI Hiroshi, WATANABE Shigeto, TAKAHASHI Yukihiro, TAGUCHI Makoto, LALLEMENT Rosine

    EPS 61 (3) 373-382 2009/03/01

    Publisher: Terra Scientific Pub. Co.

    ISSN: 1343-8832

  32. 126 LRSデータから推定される月西部海域/地下境界面の特徴(かぐや最新データから発展する月科学II,オーラルセッション4)

    押上 祥子, 山口 靖, 望月 憲悟, 山路 敦, 小野 高幸, 熊本 篤志, 中川 広務, 小林 敬生, 笠原 禎也

    日本惑星科学会秋期講演会予稿集 2008 26-26 2008/11/01

    Publisher: 日本惑星科学会

  33. P207 レーダーサウンダデータのマイグレーション処理の試み(ポスターセッション2)

    渡辺 志穂, 渡辺 俊樹, 押上 祥子, 望月 憲悟, 山口 靖, 山路 敦, 小野 高幸, 熊本 篤志, 中川 広務, 小林 敬生, 笠原 禎也

    日本惑星科学会秋期講演会予稿集 2008 127-127 2008/11/01

    Publisher: 日本惑星科学会

  34. O-153 Geologic structures of the Moon revealed by the Lunar Radar Sounder (LRS) onboard KAGUYA (SELENE)

    Yamaji A., Yamaguchi Y., Oshigami S., Ono T., Kumamoto A., Nakagawa H., Kobayashi T., Kasahara Y., Oya H.

    115 107-107 2008/09/15

    Publisher: The Geological Society of Japan

  35. Subsurface geology of mare serenitatis and surround regions of the moon as revealed by the Lunar Radar Sounder onboard Kaguya (Selene)

    A. Yamaji, Y. Yamaguchi, S. Oshigami, T. Ono, A. Kumamoto, H. Nakagawa, T. Kobayashi, Y. Kasahara

    METEORITICS & PLANETARY SCIENCE 43 (7) A172-A172 2008/07

    ISSN: 1086-9379

  36. D305 赤外・サブミリ波域による火星大気高分散観測(スペシャル・セッション「惑星大気の新しい観測と理論」)

    中川 広務, 笠羽 康正, 橋本 明, 前澤 裕之, 村田 功, 水野 亮, 岡野 章一

    大会講演予講集 94 326-326 2008

    Publisher: 日本気象学会

Show all ︎Show first 5

Books and Other Publications 2

  1. Astrobiology

    NAKAGAWA Hiromu

    Springer 2018/12

  2. 天文学会設立百周年記念 「現代の天文学」第10巻「太陽」

    小島正宜, 中川広務

    日本評論社 2009

Presentations 266

  1. EDL&R 技術で実現する火星のサイエンス

    関根康人, 臼井寛裕, 関華奈子, 寺田直樹, 長谷川精, 田中智, 原田裕己, 南拓人, 鎌田有紘, 中川広務, 境正太朗, 野口里奈, 川村太一, 永田靖典, 山田和彦

    第68回宇宙科学技術連合講演会 2024/11/05

  2. MARS MOONS’ EXPLORER (MMX) INFRARED SPECTROMETER (MIRS) OPERATIONS CONCEPTS, OBSERVATION STRATEGIES AND EXPECTED MISSION PERFORMANCES

    Eric Sawyer a, Maria Antonietta, Barucci b, Sonia Fornasier b, Frédéric Merlin, Alain Doressoundiram b, Aymeric Spiga, Thomas Gautier, Véronique Piou a, Pernelle Bernardi b, Tomoki Nakamura c, Hiromu Nakagawa c, Takahiro Iwata, Michel Le Du a, Jean-Michel Reess b, Laurent Jorda e, Théret Nicolas a, Nathalie Pons a, Christophe Donny a, Sébastien Etcheverry a, Elisabet Canalias

    75th International Astronautical Congress 2024 2024/10/14

  3. Global vertical distribution of water vapor, carbon monoxide, and their isotopes on Mars: Results from 6 years of ExoMars-TGO/NOMAD Science Operations

    S. Aoki, A. C. Vandaele, F. Daerden, I. R. Thomas, G. Villanueva, G. Liuzzi, A. Brines, M. A. Lopez-Valverde, N. Yoshida, H. Nakagawa, R. T. Clancy, L. Trompe, J. Erwin, L. Neary, S. Rober, B. Ristic, S. Faggi, J. Holmes, M. Patel, G. Bellucci, J. J. Lopez-Moreno

    The 10th international conference on Mars 2024/07/22

  4. Decrease in humidity at high latitudes due to the regolith-atmosphere interaction on Mars simulated by a global climate model.

    M. Kobayashi, T. Kuroda, F. Forge, A. Kamada, H. Kurokawa, S. Aoki, H. Nakagawa, N. Terada

    The 10th international conference on Mars 2024/07/22

  5. MIRS: An infrared spectro-imager abord the Martian Moon eXploration mission to study Phobos, Deimos and Mars.

    T. Gautier, M.A. Barucci, P. Bernardi, J.-M. Reess, S. Fornasier, F. Merlin, G. Poggiali, G. David, A. Doressoundiram, Y. Leseigneur, C. Donny, M. Le Du, V. Piou, E. Sawyer, T. Iwata, H. Nakagawa, T. Nakamura, MIRS team

    The 10th international conference on Mars 2024/07/22

  6. Global characterization of the Martian global dust optical depth with 2.7 μm observations by OMEGA/MEx

    A. Kazama, S. Aoki, Y. Leseigneur, M. Vincendon, T. Gautier, A. Spiga, Y. Kasaba, H. Nakagawa, I. Murata, F. Montmessin, T. Imamura, K. Ogohara, T. Bertrand

    The 10th international conference on Mars 2024/07/22

  7. Numerical simulation of the Martian diffuse aurora

    Yuki Nakamura, Naoki Terada, François Leblanc, Ali Rahmati, Hiromu Nakagawa, Shotaro Sakai, Kiyoka Murase, Ryuho Kataoka, Lauriane Sore, Jean-Claude Gérard, David A. Brain, Kanako Seki

    AOGS2024 21th Annual Meeting 2024/06/23

  8. Onboard scientific image data compression scheme of Martian Moons eXplorer (MMX)

    Masanobu Ozakia, Naru Hiratac, Hideaki Miyamotod, Yuta Shimizud, Hiromu Nakagawae, Risa Miyazakib, Kazunori Ogoharaf, Hiroyuki Kurokawad, Christophe Donnyg, Nathalie Ponsg, Nicolas Theretg, Mickael Brunog, Sonia Fornasierh, Frederic Merlinh, Maria Antonella Baruccih

    SPIE Astronomical Telescopes + Instrumentation 2024 2024/06/16

  9. Design and performance of MIRS infrared imaging spectrometer onboard MMX mission

    P. Bernardi*a, J-M. Reessa, M. Castelnaub, F. Chaprona, N. Nguyen-Tuonga, S. Gauffrec, B. Quertierc, J. Parisota, M. Bonafousa, D. Zeganadina, A. Baruccia, S.Fornasiera, F.Merlina, C. Imbertb, V.Pioub, E.Sawyerb, N.Theretb, M. Le Dub, T. Iwatad, H. Nakagawa, T. Nakamura, he MIRS team

    SPIE Astronomical Telescopes + Instrumentation 2024 2024/06/16

  10. The Upper Atmosphere Response to the 2018 Global Dust Storm on Mars observed by MAVEN NGIMS

    Noritsugu Nagata, Huixin Liu, Hiromu Nakagawa

    Japan Geoscience Union Meeting 2024 2024/05/30

  11. Diurnal variation of atmospheric CO2 profiles at the Iburi site, Hokkaido forest: Development and field demonstration of high-sensitive multi-wavelnegth IR sensor

    Japan Geoscience Union Meeting 2024 2024/05/27

  12. C II emission processes on Mars revealed by the MAVEN IUVS observations and feasibility study of C II observations by LAPYUTA

    Japan Geoscience Union Meeting 2024 2024/05/31

  13. Study of nucleation mechanisms in Martian mesospheric water ice clouds using the TGO onboard spectrometer NOMAD.

    Japan Geoscience Union Meeting 2024 2024/05/31

  14. Development of mid-IR heterodyne spectrometer with hollow fibers and the hollow fiber coupler for the observation of planetary atmospheres

    Japan Geoscience Union Meeting 2024 2024/05/31

  15. Mars Aurora Camera on board the next European Mars Exploration Mission M-MATISSE.

    Japan Geoscience Union Meeting 2024 2024/05/28

  16. UV-VIS imager to maximize the International Mars Ice Mapper (I-MIM)

    Japan Geoscience Union Meeting 2024 2024/05/30

  17. Statistical analysis of local dust storms based on dust abundances derived from MEx/OMEGA observation data 2.7 µm-CO2 absorption bands.

    Japan Geoscience Union Meeting 2024 2024/05/30

  18. High resolution mapping of water vapor over the southern high latitude of Mars observed by MEx/OMEGA: Preliminary results

    Japan Geoscience Union Meeting 2024 2024/05/30

  19. Global modeling of atmospheric water vapor exchange with inhomogeneous regolith on Mars

    Japan Geoscience Union Meeting 2024 2024/05/30

  20. Modeling the evolution of water on Mars over the past millions of years

    Japan Geoscience Union Meeting 2024 2024/05/30

  21. Martian Moons eXploration MMX: current status for launch in 2026

    倉本 圭, 川勝 康弘, 藤本 正樹, Barucci Mari, 玄田 英典, 平田 成, 今村 剛, Helbert J, 亀田 真吾, 小林 正規, 草野 広樹, Lawrence Davi, 松本 晃治, Michel Patrick, 宮本 英昭, 中川 広務, 中村 智樹, 小川 和律, 大嶽 久志, 尾崎 正, Russell Sar, 佐々木, 千秋 博紀, 寺田 直樹, Ulamec Stepha, 臼井 寛裕, 和田 浩二, 横田 勝一郎

    Japan Geoscience Union Meeting 2024 2024/05/30

  22. Laboratory Study of SO2 Uptake by Sulfuric Acid Droplets in the Venusian Atmospheric Condition

    Japan Geoscience Union Meeting 2024 2024/05/29

  23. Temperature estimations in the middle atmosphere using Himawari-8/AHI limb-sounding data

    Japan Geoscience Union Meeting 2024 2024/05/29

  24. Effects of regolith properties on the Martian subsurface water distribution using a global climate model

    Mirai Kobayashi, Arihiro Kamada, Takeshi Kuroda, Hiroyuki Kurokawa, Shohei Aoki, Hiromu Nakagawa, Naoki Terada

    2024 EGU General Assembly 2024/04/16

  25. Long-term evolution of the subsurface water environment on Mars over the past million years

    A. Kamada, T. Kuroda, Y. Watanabe, M. Kobayashi, T. Kodama, R. Greve, H. Nakagawa, Y. Kasaba, N. Terada

    2024 EGU General Assembly 2024/04/16

  26. MIRS : MMX INFRARED SPECTROMETER TO MARTIAN SYSTEM

    M.A. Barucci, P. Bernardi, J.-M. Reess, S. Fornasier, F. Merlin, G. Poggiali, G. David, A. Doressoundiram, T. Gautier, M. Le Du, V. Piou, E. Sawyer, T. Iwata, H. Nakagawa, T. Nakamura, MIRS team

    LUNAR AND PLANETARY SCIENCE CONFERENCE 2024 2024/03/11

  27. UV-VIS Imager

    Kanako Seki, U, Tokyo, Hiromu Nakagawa, Tohoku, I-MIM MDT (Usui, Sekine, Seki, Miyamoto, Kumamoto, Kurokawa, Imamura, Aoki, Maezawa, Nakagawa e, IDT (K Seki, H Maezawa, H Nakagawa, R. Lillis

    2024/03/07

  28. Mars Ice Mapper計画における科学観測の検討状況

    関 華奈子, 中川広務, 前澤裕之, 黒川宏之, 臼井 寛裕, 山﨑 敦, 関根 康人, MACO計画検討ワーキンググループ, 火星表層氷分布観測ミッション定義チーム

    第8回 重力天体(月火星)着陸探査シンポジウム 2024/03/07

  29. Nucleation mechanism for Mesospheric water ice clouds on Mars observed by TGO/NOMAD solar occultation

    2024/02/21

  30. Mars Aurora Camera onboard the M-MATISSE mission: Mars Magnetosphere ATmosphere Ionosphere and Surface SciencE

    2024/02/21

  31. 火星ディスクリートオーロラのFUV撮像・電離圏レーダー観測

    原田裕己, 藤原優香, Rob Lillis, 中川広務, MARSISチーム, EMUSチーム

    第25回惑星圏研究会 2024/02/20

  32. Long-term evolution of the water environment on Mars

    2024/02/20

  33. 全球気候モデルによるレゴリス特性が火星地下水分布に与える影響の研究

    古林未来, 鎌田有紘, 黒田剛史, 黒川宏之, 青木翔平, 中川広務, 寺田直樹

    第25回惑星圏研究会 2024/02/20

  34. ファイバとファイバカプラを用いた惑星大気観測用中 間赤外ヘテロダイン分光器の開発

    大畑元, 中川広務, 笠羽康正, 村田功, 片桐崇史, 松浦祐司, 平原靖大, 山﨑敦

    第25回惑星圏研究会 2024/02

  35. Carbon and oxygen isotope ratios of CO on Mars observed by TGO/NOMAD

    2024/02

  36. Predicted subsurface ice distribution using a Mars general circulation model

    Mirai Kobayashi, Arihiro Kamada, Takeshi Kuroda, Hiroyuki Kurokawa, Shohei Aoki, Hiromu Nakagawa, Naoki Terada

    AGU Fall Meeting 2023 2023/12/12

  37. Impacts of Solar Energetic Particles on the Atmospheric Composition on Present-day Mars

    Yuki Nakamura, François Leblanc, Naoki Terada, Sayano Hiruba, Isao Murata, Hiromu Nakagawa, Shotaro Sakai, Shohei Aoki, Arianna Piccialli, Yannick Willame, Lori Neary, Ann Carine Vandaele, Kiyoka Murase, Ryuho Kataoka, Kanako Seki

    AGU Fall Meeting 2023 2023/12/12

  38. Impacts of solar energetic particles on the atmospheric composition on present-day Mars

    Nakamura, Y, F. Leblanc, N. Terada, S. Hiruba, I. Murata, H. Nakagawa, S. Sakai, S. Aoki, A. Piccialli, Y. Willame, L. Neary, A. C. Vandaele, K. Murase, R. Kataoka, K. Seki

    American Geophysical Union Fall Meeting 2023 2023/12/12

  39. Mars Space Weather and how to effectively address it: Mars Magnetosphere Atmosphere Ionosphere and Space weather SciencE (M-MATISSE) - An ESA Medium class (M7) candidate

    Beatriz Sanchez-Cano, Francois Leblanc, David Andrews, Nicolas Andre, Alessandra Barco, Jean-yves Chaufray, Andrew Coates, Raffaella D'Amicis, Pierre Devoto, Marie Dominique, Johan De Keyser, Yoshifumi Futaana, Philippe Garnier, Vincent Geno, Jean-Claude Gerard, Lina Hadid, Takuya Hara, Yuki Harada, Pierre Henri, Sonal Jain, Gunter Laky, Mark Lester, Michael Liemohn, Ronan Modolo, Hiromu Nakagawa, Yuki Nakamura, Frantisek Nemec, Janusz Oschlisniok, Martin Pätzold, Kerstin Peter, David Pisa, Ferdinand Plaschke, Lubomir Prech, Jim Raines, Hanna Rothkaehl, Shotaro Sakai, Nick Schneider, Lauriance Sore, ěpán Štverák, Naoki Terada, Silvia Tellmann, Ed Thieman, Daniel Verscharen, Tom Woods, Shoichiro Yokota

    “HELIOPHYSICS IN EUROPE” WORKSHOP 2023/10/31

  40. Identifying atmospheric waves and solar wind impacts in the Martian thermosphere and ionosphere

    2023/11/07

  41. MEx/OMEGAで観測された火星高緯度域における高解像度水蒸気分布

    青木翔平, 今村剛, 岩中達郎, 中川広務, 笠羽康正

    日本惑星科学会2023年秋季講演会 2023/10/12

  42. Numerical Modeling of the Evolution of Water Ice inside Phobos

    2023/10/13

  43. 火星衛星探査計画MMXの進展と科学2023

    倉本 圭, 川勝康弘, 藤本正樹, Maria Antonella Barucci, 玄田英典, örn Helber, 平田 成, 今村 剛, 亀田真吾, 小林正規, 草野広樹, David J. Lawrenc, 本晃, Patrick Miche, 宮本英昭, 中川広務, 中村智樹, 小川和律, 大嶽久志, 尾崎正伸, Sara Russel, 佐々木, 澤田弘崇, 千秋博紀, 寺田直樹, Stephan Ulamec, 臼井寛裕, 和田浩二, 横田勝一郎

    日本惑星科学会2023年秋季講演会 2023/10/12

  44. 火星衛星探査計画 (Martian Moons eXploration) による新たな同位体観測と日欧国際協力

    中川広務, 青木翔平, 吉田辰哉, 堺正太朗, 寺田直樹, I. Thomas, J. Erwin, F. Daerden, A. C. Vandaele

    日本気象学会2023年度秋季大会 2023/10/23

  45. Atmospheric Species Behavior in the Martian Upper Atmosphere (Ionosphere) : MAVENNGIMSObservations

    2023/09/25

  46. Global effects of regolith properties on the subsurface ice distribution on Mars using a General Circulation Model

    2023/09/27

  47. Seasonal variation of surface pressure distribution on Mars in MY27-29 observed by OMEGA/MarsExpress

    SGEPSS 2023 Fall meeting 2023/09/27

  48. Temperature retrieval in the middle atmosphere using Himawari-8/AHI limbsounding data

    2023/09/26

  49. Remote sensing of near infrared spectral maps on Phobos, Deimos, and Mars by an imaging spectrometer MIRS onboard MMX

    Nakagawa, Barucci, Iwata, Nakamura, Tsuchiya, Rees, Bernardi, Fornasier, Doressoundiram, Sawyer, Le Du, Piou, Pons, Donny, Mathe, Kurokawa, Matsuoka, Aoki, MIRS team

    2023/09/26

  50. Ion and magnetic field observations planned by Martian Moons eXploration (MMX)

    2023/09/26

  51. 欧州火星探査衛星TGO/NOMADで観測されたCO・CO2のCおよびO同位体比

    塩原輝満恵, 中川広務, 青木翔平, 吉田辰哉, 村田功, 寺田直樹, 笠羽康正, H. F. Janecke, 吉田奈央, G. Liuzzi, A. C. Vandaele, L. Trompe, I. R. Thomas, G. L. Villanueva, M. A. Lopez-Valverde, A. Brines, M. R. Patel, S.Faggi, F. Daerden

    第154回地球電磁気・地球惑星圏学会2023年秋季年会 2023/09/27

  52. ファイバーとファイバーカップラーを用いた惑星大気観測用中間赤外ヘテロダイン分光器の開発

    大畑 元, 中川 広務, 笠羽 康正, 村田 功, 片桐 崇史, 平原 靖大, 松浦 祐司, 山崎 敦

    第154回地球電磁気・地球惑星圏学会 2023年秋季年会 2023/09/26

  53. Three-dimensional simulation of the Martian diffuse auroral emission in the crustal magnetic field regions

    2023/05/26

  54. Transport processes of dust and water in the Martian atmosphere revealed by the MIRS onboard MMX mission

    Nakagawa, Aoki, Ogohara, Imamura, Gautier, Spiga, Bertrand, Montmessin, Doressoundiram, Lasue, Kazama, Kasaba, Terada, Sawyer, Barucci, Rees, Bernardi, Fornasier, Iwata

    Japan Geoscience Union Meeting 2023 2023/05/26

  55. Identifying atmospheric waves and solar wind impacts in the Martian thermosphere and ionosphere

    Nakagawa, H, S. England, N. Yoshida, S. Sakai, Y. Harada, N. Terada, K. Terada, K. Seki, H. Fujiwara, T. Imamura

    Japan Geoscience Union Meeting 2023 2023/05/26

  56. Development of mid-IR heterodyne spectrometer with fibers and a fiber coupler for the observation of planetary atmospheres

    Ohata, H, H. Nakagawa, T. Katagiri, Y. Kasaba, I. Murata, Y. Hirahara, Y. Matsuura, A. Yamazaki

    2023/05/21

  57. Mars Express・MAVEN探査機の遠隔・直接同時観測による火星電離圏電子密度擾乱の研究

    坂東日菜, 原田裕己, 寺田直樹, 中川広務

    第24回惑星圏研究会 2023/02/20

  58. レゴリスの粒径を考慮した火星GCMにおけるレゴリス–大気間の水蒸気交換が火星水循環に与える影響

    古林未来, 鎌田有紘, 黒田剛史, 黒川宏之, 青木翔平, 中川広務, 寺田直樹

    第24回惑星圏研究会 2023/02/20

  59. MEx/OMEGAとMMX/MIRSへの応用を目指したCO2 2μm吸収帯による火星表面圧力導出のための放射伝達ツール開発

    風間暁, 笠羽康正, 青木翔平, 中川広務, 佐藤隆雄, 佐藤晋之祐, 吉田奈央

    第24回惑星圏研究会 2023/02/20

  60. Photolysis-induced carbon isotopic fractionation of CO in the Martian atmosphere

    2023/02/20

  61. MACO WG報告火 星オーロラカメラ耐宇宙環境評価と惑星保護に関する技術開発状況

    中川広務, 山崎敦, 坂野井健, 武山芸英, 塩谷圭吾, 石橋高, 洪鵬, 高島健, 原田裕己, 原拓也, 青木翔平, 益永圭, 堺 正太朗, 斉藤昭則, 穗積裕太, 中村勇貴, 吹澤瑞貴, 寺田直樹, 閱華奈子, 藤田和久, 前澤裕之

    第23回宇宙科学シンポジウム 2023/01/05

  62. 火星オーロラカメラ Invited

    中川広務

    宇宙空間からの地球超高層大気観測に関する研究会 2022/09/28

  63. Radar sounding observations and in situ observations of the driving sources of irregularity in the Martian ionosphere

    Japan Geoscience Union Meeting 2022 2022/05/27

  64. Exospheric retrieval from energetic ions for isotope ratio measurements by numerical simulations: Implications for future MSA observations onboard MMX

    Japan Geoscience Union Meeting 2022 2022/05/27

  65. Mid-infrared laser heterodyne spectrometer for planetary exploration using hollow optical fibers

    Japan Geoscience Union Meeting 2022 2022/05/23

  66. Development for a radiative transfer tool for remote sensing of surface pressure on Mars by CO2 2μm absorption band observed by Mars Express/OMEGA and MMX/MIRS

    Japan Geoscience Union Meeting 2022 2022/05/31

  67. The regolith-atmosphere interaction on the amounts of water vapor on Mars

    Japan Geoscience Union Meeting 2022 2022/05/31

  68. Infrared spectrometer with MMX: MIRS observation plan and design results

    Japan Geoscience Union Meeting 2022 2022/05/31

  69. Martian Moons eXploration MMX: An overview focusing its science.

    Japan Geoscience Union Meeting 2022 2022/05/23

  70. Variations in vertical CO/CO2 profiles in the Martian mesosphere and lower thermosphere measured by ExoMars TGO/NOMAD: Implications of variations in eddy diffusion coefficient

    Nao Yoshida, Hiromu Nakagawa, Shohei Aoki, Justin Erwin, Ann Carine Vandaele, Frank Daerden, Ian Thomas, Loïc Trompe, Shungo Koyama, Naoki Terada, Lori Neary, Isao Murata, Geronimo Villanueva, Giuliano Liuzzi, Miguel Angel Lopez-Valverde, Adrian Brines, Ashimananda Modak, Yasumasa Kasaba, Bojan Ristic, Giancarlo Bellucci, José Juan, López-Moreno, Manish Patel

    2022/05/27

  71. Validation of new atmospheric retrievals techniques to elucidate the vertical structure of the Martian atmosphere through limb observations.

    Japan Geoscience Union Meeting 2022 2022/05/27

  72. MIRS - MMX OBSERVATIONS OF MARTIAN SYSTEM

    M.A. Barucci, J.-M. Reess, P. Bernardi, S. Fornasier, A. Doressoundiram, M. Le Du, V. Tyrou, E. Sawyer, T. Iwata, H. Nakagawa, T. Nakamura, MIRS team

    Lunar and Planetary Science Conference 2022 2022/04/29

  73. リム観測による火星大気鉛直構造の解明を目指す新大気リトリーバル技術の検証

    小暮李成, 笠羽康正, 青木翔平, Arnaud Mahieux, 中川広務, 佐藤隆雄, 黒田剛史, 吉田奈央, 岩渕弘信, 出村裕英

    惑星圏研究会2022 2022/02/09

  74. Mesospheric response during 2018 planetary encircling dust event on Mars

    H. Nakagawa, S. Gupta, S. Jain, N. Schneider, J. Fayu, R. Yelle, L. Verdier, F. Montmessin

    2022/02/09

  75. 中空光ファイバを用いた惑星探査用 中間赤外レーザーヘテロダイン分光器の開発

    塚田悟輝, 中川広務, 村田功, 平原靖大, 笠羽康正, 片桐崇史, 松浦祐司, 山崎敦, 宮本明歩

    惑星圏研究会2022 2022/02/09

  76. 火星・金星微量大気の分光観測で目指す 物質輸送・化学プロセスの理解 Invited

    吉田奈央, 中川広務, 青木翔平, 寺田直樹, Séverine Robert, Ann Carine Vandaele, TGO, NOMADチーム

    惑星圏研究会 2022 2022/02/09

  77. Mars Ice Mapperとの協働による戦略的海外計画提案に向けたオーロラカメラ機器開発検討

    中川広務, 山崎敦, 坂野井健, 武山芸英, 塩谷圭吾, 石橋高, 高島健, 原田裕己, 原拓也, 青木 翔平, 益永圭, 堺正太朗, 斎藤昭則, 穂積裕太, 吹澤瑞貴, 中村勇貴, 寺田直樹, 関華奈子, Nick Schneider, Sonal Jain, Justin Deighan

    宇宙科学シンポジウム 2022/01/06

  78. Modeling of diffuse auroral emission at Mars: Contribution of MeV protons

    Yuki Nakamura, Naoki Terada, Francois Leblanc, Ali Rahmati, Hiromu Nakagawa, Shotaro Sakai, Sayano Hiruba, Ryuho Kataoka, Kiyoka Murase

    AGU Fall Meeting 2021 2021/12/16

  79. 地球型惑星大気にみられる乱流拡散係数の多様性

    H. Nakagawa, N. Yoshida, H. Fujiwara, N. Terada, T. Imamura, K. Seki, S. Aoki, Y. Kasaba

    気象学会2021年度秋季大会 2021/12/06

  80. 火星衛星探査計画MMXによる火星気象観測

    青木翔平, 中川広務, 小郷原一智, 今村剛, 神山徹, 今井正尭, 佐藤隆雄, 佐川英夫, 益永圭, 寺田直樹, 臼井寛裕, MMX火星圏サブサイエンスチーム

    気象学会2021年度秋季大会 2021/12/06

  81. 火星熱圏・電離圏にみら れる密度擾乱の励起源

    中川広務, Scott England, 吉田奈央, 堺正太朗, 原田裕己, Mehdi Benna, 寺田香織, 寺田直樹, 藤原均, 今村剛, 関華奈子

    地球電磁気・地球惑星圏学会総会・講演会2021 2021/11/01

  82. Remote sensing of surface pressure on Mars by CO2 2μm absorption band observed by Mars Express/OMEGA

    2021/11/01

  83. 太陽高エネルギー粒子が火星オゾンに与える影響

    Sayano Hiruba, Hiromu Nakagawa, Yuki Nakamura, Naoki Terada, Isao Murata, Shotaro Sakai, Yoshifumi Futaana

    地球電磁気・地球惑星圏学会総会・講演会2021 2021/11/01

  84. リム観測による火星大気鉛直構造の解明を目指す新大気リトリーバル技術の検証

    Risei Kogure, Shohei Aoki, Arnaud Mahieux, Hiromu Nakagawa, Takeshi Kuroda, Yasumasa Kasaba, Sato Takao, Nao Yoshida, Hirohide Demura

    地球電磁気・地球惑星圏学会総会・講演会2021 2021/11/01

  85. TGO/NOMADからリトリーバルした火星中間圏・下部熱圏の CO/CO2分布の変動

    Yoshida, N, H. Nakagawa, S. Aoki, J. Erwin, A. C. Vandaele, I. Murata, I. Thomas, F. Daerden, L. Neary, L. Trompet, S. Koyama, N. Terada, Y. Kasaba, B. Ristic, M. Patel, G, Bellucci, J. J, López-Moreno

    地球電磁気・地球惑星圏学会総会・講演会2021 2021/11/01

  86. Numerical prediction of changes in atmospheric compositions during SEP events at Mars

    Yuki Nakamura, Naoki Terada, Francois Leblanc, Ali Rahmati, Hiromu Nakagawa, Shotaro Sakai, Sayano Hiruba, Ryuho Kataoka, Kiyoka Murase

    2021/11/01

  87. MIRS Imaging Spectrometer for the Martian Moon Explorer (MMX) Mission

    S. Fornasier, M.A. Barucci, J.M. Reess, P. Bernardi, M. Le Du, A. Doressoundiram, T. Iwata, H. Nakagawa, T. Nakamura, F. Chapron, N. Nguyen Tuong, J. Parisot, M. Castelnau, A. Bour, F. Tache, MIRS Team

    Europlanet Science Congress 2021 2021/09/23

  88. Observation opportunities for Mars atmosphere with the MIRS instrument aboard the Martian Moon eXploration mission

    A. Doressoundiram, T. Gautier, M.A. Barucci, S. Fornasier, S. Aoki, J.M. Reess, P. Bernardi, M. Le Du, E. Sawyer, T. Iwata, H. Nakagawa, T. Nakamura, MIRS Team

    Europlanet Science Congress 2021 2021/09/22

  89. Variation of CO/CO2 profiles in the Martian mesosphere and lower thermosphere retrieved from TGO/NOMAD

    Yoshida, N, H. Nakagawa, S. Aoki, J. Erwin, A. C. Vandaele, I. Murata, I. Thomas, F. Daerden, L. Neary, S. Koyama, N. Terada, Y. Kasaba, B. Ristic, M. Patel, G. Bellucci, J.-J, López Moreno

    Europlanet Science Congress 2021 2021/09/22

  90. Influences of solar energetic particles on the Martian ozone

    晝場清乃, 中川広務, 中村勇貴, 寺田直樹, 堺正太朗, 村田功, 二穴喜文

    日本惑星科学会秋季講演会2021 2021/09/18

  91. Mars’ atmospheric neon: Implications for volatile-rich primitive mantle and its origins

    Hiroyuki Kurokawa, Yayoi N. Miura, Seiji Sugita, Yuichiro Cho, François Leblanc, Naoki Terada, Hiromu Nakagawa

    2021/09/18

  92. 中空光ファイバを用いた太陽系内探査用中間赤外レーザーヘテロダイン分光器の開発

    塚田 悟輝, 中川広務, 村田功, 平原靖大, 笠羽康正, 片桐崇史, 松浦祐司, 宮本明歩, 山崎敦

    日本惑星科学会秋季講演会2021 2021/09/18

  93. MMX搭載赤外線分光計MIRSの 科学目標と開発状況

    岩田隆浩, 中川広務, 土屋史紀, 中村智樹, Maria Antonietta Barucci, Jean-Michel Reess, Pernelle Bernardi, Alain Doressoundiram, Sonia Fornasier, Michel Le Du, Eric Sawyer, Veronique Tyrou

    日本惑星科学会秋季講演会2021 2021/09/18

  94. Phobos and Deimos as observed by MIRS spectrometer on board of Martian Moon eXploration (MMX) mission

    M.A. Barucci, J.M. Reess, P. Bernardi, M. Le Du, A. Doressoundiram, S. Fornasier, E. Sawyer, T. Iwata, H. Nakagawa, T. Nakamura, MIRS Team

    Europlanet Science Congress 2021 2021/09/17

  95. 地球型惑星大気にみられる乱流拡散係数の多様性

    H. Nakagawa, N. Yoshida, H. Fujiwara, N. Terada, T. Imamura, K. Seki, S. Aoki, Y. Kasaba

    日本惑星科学会秋季講演会2021 2021/09/16

  96. Martian Moons eXploration MMX: Current Status Report 2021

    Japan Geoscience Union Meeting 2021 2021/06/03

  97. Variation of CO/CO2 profile in the Martian middle atmosphere observed by TGO/NOMAD

    Japan Geoscience Union Meeting 2021 2021/06/03

  98. 火星熱圏密度中にみられる波状擾乱の年変動

    Japan Geoscience Union Meeting 2021 2021/06/04

  99. Impacts of solar energetic particles at Mars: Global diffuse aurora and atmospheric chemistry Invited

    Japan Geoscience Union Meeting 2021 2021/06/04

  100. Observation Plans and Development Status of MIRS: MMX Infrared Spectrometer on the MMX Spacecraft

    Japan Geoscience Union Meeting 2021 2021/06/04

  101. Development of mid-IR heterodyne spectrometer with hollow optical fiber for solar system exploration

    Japan Geoscience Union Meeting 2021 2021/06/04

  102. Modeling diffuse auroral emissions at Mars: Contribution of precipitating protons and mirror effects of crustal fields

    Japan Geoscience Union Meeting 2021 2021/06/03

  103. 太陽高エネルギー粒子が火星オゾン大気に与える影響の評価

    Japan Geoscience Union Meeting 2021 2021/06/03

  104. 火星電離圏不規則構造の遠隔・直接同時観測

    Japan Geoscience Union Meeting 2021 2021/06/03

  105. Global climate and river transport simulations of early Mars during the late Noachian and the early Hesperian

    Japan Geoscience Union Meeting 2021 2021/06/04

  106. Modeling of SEP induced auroral emission at Mars: Contribution of precipitating protons and effects of crustal fields

    EGU General Assembly 2021 2021/04/29

  107. PLANETS低散乱軸外し望遠鏡の観測と開発の現状

    2021/02/17

  108. Evaluation of the efficiency of the mid-IR laser heterodyne spectrometer using hollow fibers

    2021/02/17

  109. Seasonal and dust related variations of dayside ionospheric compositions coupled with neutral upper atmosphere on Mars

    2021/02/17

  110. Nightside wave perturbations in the Martian thermosphere

    2021/02/17

  111. Intense Zonal Wind in the Martian Mesosphere during the 2018 Planet-Encircling Dust Event Observed by Ground-based IR Heterodyne Spectroscopy

    2021/02/17

  112. MAVEN/IUVS observations of the Martian ozone layer during solar energetic particle events

    2021/02/17

  113. Modeling of SEP induced auroral emission at Mars: Contribution of precipitating protons and effects of crustal fields

    2021/02/17

  114. Evaluation of the efficiency of the mid-IR laser heterodyne spectrometer using hollow fibers

    2021/01/06

  115. MACO (Mars Aqueous-environment and space Climate Orbiter) WG Report: Science Strategy

    2021/01/06

  116. MACO WG Report: Planetary protection of mission instruments for Mars exploration

    山﨑 敦, 藤田 和央, 小澤 宇志, 中川 広務, 前澤 裕之, 笠原 慧, 横田 勝一郎, 松岡 彩子, 熊本 篤志, 寺田 直樹, 臼井 寛裕, 関 華奈子

    2021/01/06

  117. New design for stray-light reduction to a Martian ionospheric imager and aurora camera

    2021/01/06

  118. Broadband mid-IR fiber optics for heterodyne spectroscopy in solar system exploration missions

    H. Nakagawa, S. Tsukada, Y. Kasaba, Y. Hirahara, Y. Matsuura, T. Katagiri, I. Murata, A. Yamazaki

    SPIE Astronomical telescopes + instrumentation 2020 Digital Forum 2020/12/14

  119. Seasonal variation of dayside ionospheric compositions coupled with neutral upper atmosphere on Mars

    Nao Yoshida, Naoki Terada, Hiromu Nakagawa, David Brain, Shotaro Sakai

    AGU fall meeting 2020 2020/12/11

  120. Modeling of SEP induced auroral emission at Mars: Proton contribution to the low altitude peak and effects of crustal fields

    Yuki Nakamura, Naoki Terada, Hiromu Nakagawa, Shotaro Sakai, Sayano Hiruba, Francois Leblanc

    AGU fall meeting 2020 2020/12/11

  121. Day-night variation of O2/CO2 in Mars lower thermosphere

    Hiromu Nakagawa, Roger V Yelle, Fayu Jiang, Sonal Jain, Loic Verdier, Franck Montmessin, Nao Yoshida, Nicholas McCord Schneider, Francisco Gonzalez-Galindo, Naoki Terada, Hitoshi Fujiwara, Takeshi Imamura, Kaori Terada, Justin Deighan, Bruce Martin Jakosky

    AGU fall meeting 2020 2020/12/11

  122. Characterization of Warm Layers in the Martian Atmosphere with the Imaging Ultraviolet Spectrograph on board the Mars Atmosphere and Volatile Evolution Spacecraft

    Fayu Jiang, Roger V Yelle, Hiromu Nakagawa, Nicholas McCord Schneider, Sonal Jain, Franck Montmessin, Justin Deighan, Loic Verdier

    AGU fall meeting 2020 2020/12/11

  123. The Formation of O2-dominated Atmosphere under High EUV Flux on Early Mars

    AGU fall meeting 2020 2020/12/08

  124. 初期火星の高 EUV 放射下における酸素大気の形成可能性

    小山 俊吾, 寺田 直樹, 寺田 香織, 中川 広務, 黒田 剛史, 小河 正基

    日本惑星科学会2020年秋季講演会 2020/11/13

  125. 米欧火星探査機群観測データによる新大気リトリーバル技術の検証 (2) ~欧 ExoMars Trace Gas Orbiter および 日 MMX への応用展開 準備~

    中川 広務, 笠羽 康正, 青木 翔平, Mahiaux Arnaud, 小暮 李成, 岩渕 弘信, 出村 裕英

    日本惑星科学会2020年秋季講演会 2020/11/13

  126. MMX 搭載赤外線分光計 MIRS の観測計画と開発状況

    岩田 隆浩, 究開発機構宇宙科学研究所, 中川 広務, 中村 智樹, Antonietta Barucci Maria, Reess Jean-Michel, Bernardi Pernelle, Doressoundiram Alain, Fornasier Sonia, Le Du Michel, Sawyer Eric

    日本惑星科学会2020年秋季講演会 2020/11/13

  127. 中間赤外中空ファイバを用い たレーザーヘテロダイン分光器の 信号取得効率の評価

    塚田 悟輝, 中川 広務, 村田 功, 平原 靖大, 笠羽 康正, 片桐 崇史, 松浦 祐司, 宮本 明歩, 山崎 敦

    地球電磁気・地球惑星圏学会第148回総会・講演会 2020/11/02

  128. Day-night variation of O2/CO2 in Mars lower thermosphere

    2020/11/02

  129. MAVEN/IUVS observation of the Martian ozone layer during solar energetic particle events

    2020/11/02

  130. Intense zonal wind in the Martian mesosphere during the 2018 planet-encircling dust event observed by IR heterodyne spectroscopy

    2020/11/02

  131. Retrieval of vertical structure in the Martian atmosphere during 2007 global dust storm by OMEGA/MEx limb observation

    地球電磁気・地球惑星圏学会第148回総会・講演会 2020/11/02

  132. Modeling of SEP induced auroral emission at Mars: Different behaviors of electron and

    2020/11/01

  133. 火星衛星探査計画MMX赤外線分光計MIRSの科学目標と開発状況

    2020/10/26

  134. 火星衛星探査計画MMXのミッション運用検討

    2020/10/29

  135. MMX JAXA Mission and MIRS Imaging Spectrometer

    Maria Antonietta Barucci, Jean-Michel Reess, Pernelle Bernardi, Hiromu Nakagawa, Takahiro Iwata, Tomoki Nakamura, Alain Doressoundiram, Sonia Fornasier, Michel Le Du, Eric Sawyer, Thomas Gautier, Cedric Leyrat, Laurent Jorda, Frederic Merlin, Elisabet Canalias, Francis Rocard, Kiyoshi Kuramoto, Yasuhiro Kawakazu, the MIRS MMX Team

    Europlanet Science Congress 2020 2020/09/29

  136. Broadband mid-IR fiber optics for solar system exploration missions

    H. Nakagawa, Y. Kasaba, Y. Hirahara, Y. Matsuura, T. Katagiri, I. Murata, S. Tsukada, A. Yamazaki

    ISAS Planetary Exploration Workshop 2020 2020/09/09

  137. New design high-contrast optics for solar system exploration missions

    H. Nakagawa, A. Yamazaki, K. Enya, N. Fujishiro, N. Terada, K. Seki

    2020/09/09

  138. Scientific Instruments on Martian Moons eXploration (MMX) Invited

    JpGU-AGU Joint Meeting 2020 2020/07/12

  139. Martian Moons eXploration MMX: Current Status Report 2020

    JpGU-AGU Joint Meeting 2020 2020/07/12

  140. Organizational framework for scientific studies and instruments in Martian Moons Exploration (MMX) mission

    JpGU-AGU Joint Meeting 2020 2020/07/12

  141. Zonal wind acceleration in the Martian mesosphere during the global dust storm 2018 observed by IR heterodyne spectroscopy

    JpGU-AGU Joint Meeting 2020 2020/07/12

  142. A warm layer in the nightside mesosphere of Mars

    JpGU-AGU Joint Meeting 2020 2020/07/12

  143. Near-infrared Hyperspectral Imager MacrOmega on MMX to Observe Martian System: Its Observation Plans and Development

    JpGU-AGU Joint Meeting 2020 2020/07/12

  144. On possibility of visualization of Martian space environment with diffuse aurora: Relations between magnetic field structure and solar energetic electron penetration into the upper atmosphere observed by MAVEN

    JpGU-AGU Joint Meeting 2020 2020/07/12

  145. 積雲対流スキームの差異による古⽕星降⽔分布への影響

    JpGU-AGU Joint Meeting 2020 2020/07/12

  146. Retrieval of vertical structure in the Martian atmosphere during 2007 global dust storm by OMEGA/MEx limb observation

    JpGU-AGU Joint Meeting 2020 2020/07/12

  147. The influence of carbon escape on the evolution of the Martian atmosphere

    JpGU-AGU Joint Meeting 2020 2020/07/12

  148. Evolution of hydrological and glaciological activities on early Mars before late Tharsis formation

    JpGU-AGU Joint Meeting 2020 2020/07/12

  149. 全球ダストストーム時の火星地表面輝度温度の時間変化

    JpGU-AGU Joint Meeting 2020 2020/07/12

  150. Seasonal variation of neutral and ion compositions in the Martian upper atmosphere observed by MAVEN/NGIMS

    JpGU-AGU Joint Meeting 2020 2020/07/12

  151. Stability of atmospheric redox states of early Mars inferred from time response of the regulation of H and O losses

    JpGU-AGU Joint Meeting 2020 2020/07/12

  152. Preliminary Studies on Thermal Correction of NIR Reflectance Spectra — Application to the MacrOmega Instrument for MMX

    51stLunarandPlanetaryScienceConference(2020) 2020/03/16

  153. University-Scale Ground-Based Observatories for Solar System: A case of Tohoku Univ.

    Symposium on Planetary Sciences 2020 2020/02/17

  154. PLANETS Telescope Project: Current Status of Development and Future Plan

    Symposium on Planetary Sciences 2020 2020/02/17

  155. Zonal Wind Acceleration in the Martian Mesosphere during the Global Dust Storm 2018 Observed by Ground-Based IR Heterodyne Spectroscopy

    Symposium on Planetary Sciences 2020 2020/02/17

  156. Coupled Planetary Environments: from Surface to Space, Thermal to Nonthermal, and Gyration to Evolution

    Symposium on Planetary Sciences 2020 2020/02/17

  157. Simulation of Possible Water Emission from RSLs on Mars using a High-Resolution GCM

    Symposium on Planetary Sciences 2020 2020/02/18

  158. The Efficiency of Vertical Coupling between Lower and Upper Atmosphere on Mars

    Symposium on Planetary Sciences 2020 2020/02/18

  159. Stability of Atmospheric Redox States of Early Mars Inferred from Time Response of the Regulation of H and O Losses

    Symposium on Planetary Sciences 2020 2020/02/18

  160. A warm layer in the summer night side mesosphere of Mars

    AGU fall meeting 2019 2019/12/13

  161. Zonal wind acceleration and atmospheric heating in the Martian mesosphere during the global dust storm 2018 by ground-based IR heterodyne observation and MAVEN/IUVS

    AGU fall meeting 2019 2019/12/09

  162. Characterization of warm layers on Mars with the Imaging Ultraviolet Spectrograph on board the Mars Atmosphere and Volatile Evolution spacecraft

    AGU fall meeting 2019 2019/12/09

  163. Seasonal and latitudinal variations of dayside N2/CO2 ratio in the Martian thermosphere derived from MAVEN IUVS observations

    AGU fall meeting 2019 2019/12/09

  164. The influence of carbon escape on the evolution of the Martian atmosphere

    AGU fall meeting 2019 2019/12/09

  165. Stability of atmospheric redox states of early Mars inferred from time response of the regulation of H and O losses

    AGU fall meeting 2019 2019/12/09

  166. A Coupled Atmosphere–Hydrosphere Global Climate Model of Early Mars: Reproduction of the ‘Cool and Wet’ Scenario and the Formation of Water Channels

    AGU fall meeting 2019 2019/12/09

  167. Atmospheric compositions in the ionosphere/ thermosphere on Mars observed by NGIMS and IUVS on MAVEN

    2019/10/23

  168. 中間赤外ヘテロダイン分光観測から得られた火 星中間圏での 2018 年全球ダストストームによる東西風 加速

    2019/10/23

  169. 大学規模の太陽系地上観測所、その将来計画: 東北大の場合

    2019/10/24

  170. 火星中間圏における異常昇温層の発見

    2019/10/24

  171. 火星古気候モデルに向けた積雲対流スキームの定量的評価

    鳥海克成, 鎌田有紘, 黒田剛史, 寺田直樹, 笠羽康正, 中川広務, 村田功

    惑星 2019/10/07

  172. 炭素流出が火星大気組成進化に及ぼす影響:酸素分圧の変化

    八木亮輔, 寺田直樹, 小山俊吾, 黒田剛史, 中川広務, 村田功, 笠羽康正

    惑星科学会2019年秋季講演会 2019/10/07

  173. 火星古環境の3次元大気圏・水圏結合シミュレーション:タルシス山地による全球水循環への影響

    鎌田有紘, 黒田剛史, 笠羽康正, 寺田直樹, 中川広務, 鳥海克成

    惑星科学会2019年秋季講演会 2019/10/07

  174. 大学規模の光太陽系地上観測所、その将来計画:東北大の場合

    2019/10/07

  175. MMX 搭載近赤外分光撮像器 MacrOmega の 観測計画と開発状況

    2019/10/07

  176. 火星衛星探査計画MMXの進展とサイエンス

    倉本 圭, 川勝 康弘, 藤本 正樹, ean-Pierre Bibring, 玄田 英典, 平田 成, 今村 剛, 亀田 真吾, David Lawrence, 松本 晃治, 宮本 英昭, 諸田 智克, 長岡 央, 中川広務, 中村 智樹, 小川 和律, 大嶽 久志, 尾崎 正伸, 佐々木, 千秋 博紀, 橘 省吾, 寺田 直樹, 臼井 寛裕, 和田 浩二, 渡邊 誠一郎, MMX study team

    惑星科学会2019年秋季講演会 2019/10/07

  177. Comparative study for upper atmosphere between Earth and Mars (and Venus) Invited

    2019/09/12

  178. Preliminary studies on the retrieval and correction of the thermal component of Phobos NIR reflectance spectra to prepare for the MacrOmega investigation on-board the Martian Moons eXploration Mission

    2019/06/21

  179. 戦略的火星探査:周回・探査技術実証機による火星宇宙天気・気候・水環境探査計画 Invited

    Japan Geoscience Union Meeting 2019 2019/05/27

  180. 火星衛星探査計画MMX:目指す科学とその推進

    Japan Geoscience Union Meeting 2019 2019/05/27

  181. Global characterization of wave perturbations in the middle atmosphere on Mars

    Japan Geoscience Union Meeting 2019 2019/05/28

  182. Water cycle and its evolution: High-speed H2O transport to upper atmosphere on Mars Invited

    Japan Geoscience Union Meeting 2019 2019/05/28

  183. ALMA望遠鏡を利用した2018年火星全球ダストストームの観測

    Japan Geoscience Union Meeting 2019 2019/05/29

  184. 惑星大気ならびに系外惑星連続モニタリングのためのPLANETS望遠鏡の開発現況

    Japan Geoscience Union Meeting 2019 2019/05/27

  185. Seasonal variation of the dayside N2/CO2 at 140 km altitude derived from MAVEN/IUVS

    Japan Geoscience Union Meeting 2019 2019/05/28

  186. 赤外ヘテロダイン分光による火星大気中間圏の地上観測によって得られた全球ダストストーム期間中の温度変化

    Japan Geoscience Union Meeting 2019 2019/05/28

  187. 火星古気候モデルへ向けた積雲対流スキームの導入

    Japan Geoscience Union Meeting 2019 2019/05/28

  188. MRO/CRISM 火星リム観測による多重散乱を考慮したエアロゾル・ガス高度プロファイルのリトリーバル

    Japan Geoscience Union Meeting 2019 2019/05/26

  189. From Venus to Mars: viewpoint of comparative meteorology Invited

    Japan Geoscience Union Meeting 2019 2019/05/27

  190. GCM simulations of the present and past water environment on Mars

    Japan Geoscience Union Meeting 2019 2019/05/26

  191. Temperature and wind variations in Venusian mesosphere and lower thermosphere by mid-infrared heterodyne spectrometer in 2018

    Japan Geoscience Union Meeting 2019 2019/05/27

  192. Time response of the self-regulation of H and O escapes from Mars

    Japan Geoscience Union Meeting 2019 2019/05/26

  193. Mars mesospheric zonal wind at global dust storm 2018

    Nakagawa, H, A. Miyamoto, K. Takami, S. Aoki, H. Sagawa, T. Kuroda, N. Terada, Y. Kasaba, N. Yoshida, K. Toriumi

    Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) 2018/11/23

  194. Evolution of aerosol profile and convective instability resulting from superposition of atmospheric waves in the middle atmosphere on Mars

    Nakagawa, H, N. Terada, N. Yoshida, H. Fujiwara, K. Seki, IUVS team

    Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) 2018/11/23

  195. 火星超高層大気中における大気重力波の特性

    中川 広務, 寺田 直樹, 吉田 奈央, 青木 翔平, 笠羽 康正

    日本気象学会2018年度秋季大会 2018/10/31

  196. Spectral inversion of OMEGA/MEx limb observations considering multiple scattering International-presentation

    Arnaud Mahieux, Shohei Aoki, Masashi Toyooka, Hiromu Nakagawa, Hironobu Iwabuchi, Yasumasa Kasaba, Giuseppe Sindoni, Anna Geminale, Fabrizio Oliva, Emiliano D’Aversa, Francesca Altieri, Giancarlo Bellucci, Ann Carine Vandaele, Brigitte Gondet, Jean-Pierre Bibring

    Europena Planetary Science Congress 2018 2018/09/16

  197. Modification of the retrieval tool JACOSPAR for the Martian limb observation International-presentation

    Masashi Toyooka, Hironobu Iwabuchi, Shohei Aoki Arnaud Mahieux, Hiromu Nakagawa, Yasumasa Kasaba

    Europena Planetary Science Congress 2018 2018/09/16

  198. Four years of upper atmospheric exploration at Mars with MAVEN and IUVS International-presentation

    Franck Montmessin, N. M Schneider, J. I. Deighan, S. K. Jain, J. S. Evans, M. Crismani, M. H. Stevens, D. Y. Lo, J. T. Clarke, M. S. Chaffin, M. Mayyasi, F. Lefèvre, A. Stiepen, E. Royer, Z. Milby, H. Groeller, R. Yelle, H. Nakagawa

    Europena Planetary Science Congress 2018 2018/09/13

  199. Simulation of the coupled atmosphere and hydrosphere on early Mars using a GCM International-presentation

    Takeshi Kuroda, Arihiro Kamada, Katsushige Toriumi, Yasumasa Kasaba, Naoki Terada, Hiromu Nakagawa

    Europena Planetary Science Congress 2018 2018/09/13

  200. Exploring the Atmosphere of Mars with Remote Observations: Activities in Japan for the Belgium- Japan partnership (AMAVERO) International-presentation

    Y. Kasaba, H. Nakagawa, H. Sagawa, T. Kuroda, T. Imamura, Y. Kasai, A. Yamazaki, T.M. Sato, H. Maezawa, M. Taguchi, H. Kashimura, I. Murata, N. Terada, T. Sakanoi, K. Takami, S. Aizawa, M. Toyooka, T. Akiba, N. Yoshida, K. Toriumi, A.C. Vandaele, S. Aoki, S. Robert, V. Wilquet, A. Mahieux, S. Bauduin, F. Daerden, L. Neary, S. Viscardy, P.F. Coheur

    Europena Planetary Science Congress 2018 2018/09/13

  201. The effect of atmospheric gravity waves on the water transport and its escape on Mars

    Hiromu Nakagawa, Naoki Terada, Nao Yoshida, Shohei Aoki, Takeshi Kuroda, Yasumasa Kasaba

    Japan Geoscience Union 2018/05/20

  202. The homopause altitude of Martian atmosphere derived by the vertical N2/CO2 ratio profiles observed by MAVEN/IUVS

    Nao Yoshida, Hiromu Nakagawa, Naoki Terada

    Japan Geoscience Union 2018/05/20

  203. Exploring the Atmosphere of MArs and VEnus with Remote Observations and Simulations: A Belgium-Japan partnership (AMAVERO) 2017-2018

    Yasumasa Kasaba, Hiromu Nakagawa, Hideo Sagawa, Takeshi Kuroda, Takeshi Imamura, VANDAELE A.C, Shohei Aoki, Isao Murata, Naoki Terada, Takeshi Sakanoi, Kosuke Takami, Sae Aizawa, Akiba Takehiko, Masashi Toyooka, Nao Yoshida, Katsushige Toriumi, YASUKO KASAI, Atsushi Yamazaki, Takao M. Sato, Hiroyuki Maezawa, Makoto Taguchi, Hiroki Kashimura, P.-F. Coheur, S. Sophie, S. Severine, V. Wilquet, A. Mahieux, F. Daerden, L. Neary, S. Viscardy

    Japan Geoscience Union 2018/05/20

  204. Modification of the retrieval tool JACOSPAR for the Martian limb observations

    Masashi Toyooka, Hironobu Iwabuchi, Shohei Aoki, Arnaud Mahieux, Hiromu Nakagawa, Yasumasa Kasaba

    Japan Geoscience Union 2018/05/20

  205. The effect of atmospheric gravity waves on the water upward transport on Mars

    H. Nakagawa, N. Terada, N. Yoshida, S. Aoki, T. Kuroda, Y. Kasaba

    Symposium on Planetary Science 2018 2018/02/27

  206. Seasonal variations of small-scale waves in the martian lower thermosphere

    H. Nakagawa, A.Medvedev, T.Kuroda, E.Yigit, N.Terada, K.Terada, H.Fujiwara, K.Seki, P.Hartogh, H. Groller, R.V.Yelle, F.Montmessin, N.M.Schneider, B.M.Jakosky

    第142回地球電磁気・地球惑星圏学会総会および講演会 2017/10/16

  207. Near infrared spectral imager MacrOmega onboard MMX to investigate martian atmosphere

    H. Nakagawa, S.Aoki, T. Imamura, K.Ogohara, T. Kouyama, T.M.Sato, H.Sagawa, T. Sakanoi, Y. Kasaba, M. Taguchi, T. Iwata, T.Nakamura, S. Crites, V. Hamm, C. Pilorget, M. Vincendon, J.P.Bibring

    第142回地球電磁気・地球惑星圏学会総会および講演会 2017/10/16

  208. Global distribution of GW activity in Mars' lower thermosphere derived from MAVEN/IUVS stellar occultations and analyzed using two MGCMs International-presentation

    H. Nakagawa, A.Medvedev, T.Kuroda, E.Yigit, N.Terada, K.Terada, H.Fujiwara, K.Seki, P.Hartogh, H. Groller, R.V.Yelle, F.Montmessin, N.M.Schneider, B.M.Jakosky

    SCOOP(Towards a Synergistic study of the atmosphere of terrestrial planets) workshop 2017/06/20

  209. Global distribution of GW activity in Mars' lower thermosphere derived from MAVEN/IUVS stellar occultations and analyzed using two MGCMs

    H. Nakagawa, A.S.Medvedev, T. Kuroda, E. Yigit, N. Terada, K. Terada, H. Fujiwara, C. Mockel, P. Hartogh, K. Seki, H. Groller, R.V.Yelle, F. Montmessin, N.M.Schneider, J.I.Deighan, S. Jain, B.Jakosky

    日本地球惑星科学連合 2017/05/20

  210. Near Infrared Hyperspectral Imager NIRS4/MacrOmega onboard MMX to investigate Water cycle on Mars

    H. Nakagawa, S.Aoki, T. Sakanoi, T. Iwata, T. Nakamura, S. Crites, J.P.Bibring, V.Hamm, C. Pilorget, T. Imamura, K. Ogohara, T. Sato, Y. Kasaba, H. Sagawa, M. Taguchi

    日本地球惑星科学連合 2017/05/20

  211. 火星生命の痕跡を探るための地上からの超高分解能分光連続観測と国際連携観測

    中川広務, 青木翔平, 佐川英夫

    第5回宇宙における生命ワークショップ 2017/03/06

  212. MAVEN/IUVSと地上観測連携による火星中層大気観測

    H. Nakagawa, A. S. Medvedev, T. Kuroda, E. Yigit, N. Terada, K. Terada, H. Fujiwara, K. Seki

    第30回大気圏シンポジウム 2016/12/05

  213. A global view of small-scale wave perturbations in Mars' lower thermosphere derived from MAVEN/IUVS

    H. Nakagawa, A. S. Medvedev, T. Kuroda, E. Yigit, N. Terada, K. Terada, H. Fujiwara, C. Mockel, P. Hartogh, K. Seki, N. M. Schneider, H. Groller, R. V. Yelle, F. Montmessin, J. I. Deighan, S. Jain, B. Jakosky

    地球電磁気・地球惑星圏学会 2016/11/19

  214. ファイバを用いた着陸機・周回器搭載用赤外ヘテロダイン分光・レーザ分光技術

    太陽系探査を目指した観測装置ワークショップ 2016/10/11

  215. 高分解能分光地上観測による火星大気微量成分・同位体計測

    中川広務, 青木翔平, 佐川英夫, 笠羽康正, 前澤裕之

    アストロバイオロジーワークショップ 2016/09/22

  216. ハレアカラT60と超高分散分光器MILAHIによる火星・金星大気

    中川広務, 笠羽康正, 青木翔平, 佐川英夫, 高見康介, 村田功, 坂野井健, 鍵谷将人, 岡野章一, Guido Sonnabend, Manuela Sornig, Pia Krause, Jeffrey Kuhn

    ワークショップ「地上赤外線観測による太陽系内天体の観測戦略」 2016/09/07

  217. Comparison of the Martian thermospheric density and temperature from IUVS/MAVEN data and general circulation modeling

    Hiromu Nakagawa, Alexander Medvedev, Chris Mockel, Erdal Yigit, Takeshi Kuroda, Paul Hartogh, Kaori Terada, Naoki Terada, Kanako Seki, Nicholas Schneider, Sonal Jain, Scott Evans, Justin Deighan, William McClintock, Daniel Lo, Bruce Jakosky

    Japan Geoscience Union Meeting 2016 2016/05/22

  218. Methane and HDO/H2O in the Martian atmosphere studied by ultra-high spectral resolution

    中川広務, 青木翔平, 佐川英夫, 笠羽康正, 村田功, 高見康介, 鍵谷将人, 坂野井健, Jeffrey Kuhn, Joseph Ritter, 岡野章一, 田口真

    Japan Geoscience Union Meeting 2016 2016/05/22

  219. Regional coupling between lower and upper atmosphere revealed by MAVEN/IUVS and complementary study by Earth-based observations International-presentation

    Nakagawa, H, A. Medvedev, C. Mockel, S. Jain, S. Evans, N. Schneider, T. Kuroda, N. Terada, K. Terada, K. Seki, S. Aoki, H. Sagawa, Y. Kasaba, K. Takami, I. Murata, G. Sonnabend, M. Sornig, M. Kagitani, T. Sakanoi, S. Okano, M. Taguchi, J. Kuhn, J. Ritter

    International GEMSIS and ASINACTR-G2602 Workshop: Future Perspectives of Researches in Space Physics 2016/03/22

  220. 赤外ヘテロダイン分光器 MILAHI を用いた火星・金星大気観測

    中川広務, 青木翔平, 佐川英夫, 笠羽康正, 村田功, 高見康介, 鍵谷将人, 坂野井健, 岡野章一

    地球電磁気・地球惑星圏学会第138回総会および講演会 2015/10/31

  221. Scientific capabilities and measurement sensitivities of the IR heterodyne spectroscopy

    Hiromu Nakagawa, Hideo Sagawa, Shohei Aoki, Kosuke Takami, Yasumasa Kasaba, Isao Murata, Guido Sonnabend, Manualea Sornig, Shoichi Okano, Jeffrey Kuhn, Joseph Ritter, Masato Kagitani, Takeshi Sakanoi, Makoto Taguchi

    日本地球惑星科学連合大会 2015/05/24

  222. Scientific capabilities and measurement sensitivities of the IR heterodyne spectroscopy

    H. Nakagawa, H. Sagawa, S. Aoki, K. Takami, Y. Kasaba, I. Murata

    Symposium on Planetary Science 2015 2015/02/16

  223. 東北大学ハレアカラ60cm望遠鏡ファーストライトおよび1.8PLANETS望遠鏡計画: 超高分解能赤外ヘテロダイン分光による惑星観測

    中川広務, 青木翔平, 笠羽康正, 村田功, G. Sonnabend, 佐川英夫, 岡野章一, 鍵谷将人, 坂野井健, J. Kuhn, J. Ritter

    地球型惑星圏研究会 2014/12/25

  224. 超高波長分解能レーザヘテロダイン分光器の惑星への挑戦

    中川広務, 青木翔平, 笠羽康正, 村田功, G. Sonnabend, 佐川英夫, 岡野章一, 鍵谷将人, 坂野井健, J. Kuhn, J. Ritter, 伊藤一成

    地球電磁気・地球惑星圏学会 2014/10/31

  225. 超高分解能レーザー分光器による惑星大気の連続観測

    中川広務, 青木翔平, 笠羽康正, 村田功, G. Sonnabend, 佐川英夫, 岡野章一, 鍵谷将人, 坂野井健, J. Kuhn, J. Ritter, 伊藤一成

    惑星科学会 2014/09/24

  226. Observing plan for continuous monitoring of planetary atmosphere using IR heterodyne instrument

    中川, 青木翔平, 笠羽康正, 村田功, G.Sonnabend, 岡野章一

    Symposium on Planetary Science 2014/02/21

  227. 惑星大気散逸光学撮像観測のための迷光除去システムの基礎開発

    中川広務, 山崎敦, 塩谷圭吾, 田口真, 坂野井健, 寺田直樹, 関華奈子, 松岡彩子

    第13回宇宙科学シンポジウム 2014/01/09

  228. 火星大気の上下結合過程が大気散逸に及ぼす影響

    中川広務, 佐川英夫, 寺田直樹, 関華奈子, 前澤裕之

    ALMAを利用した太陽系天体観測セミナー 2013/10/28

  229. ハワイ・ハレアカラにおける超高分解能赤外ヘテロダイン分光器

    中川広務, 青木翔平, 笠羽康正, 村田功, 市川隆, 岡野章一, G.Sonnabend

    日本天文学会 2013/09/10

  230. Study of planetary atmosphere using continuous monitoring by Mid-Infrared LAser Heterodyne Instrument (MILAHI) International-presentation

    中川広務, 青木翔平, 笠羽康正, 村田功, G.Sonnabend, 岡野章一

    European Planetary Sciene Congress 2013 2013/09/08

  231. Global mapping of the CO2 isotopes in the Martian atmosphere as observed Subaru/IRCS

    中川広務, 青木翔平, 笠羽康正, 佐川英夫

    日本地球惑星科学連合2013大会 2013/05/19

  232. Study of planetary atmospheric dynamics, photochemistry, and meteorology using Mid-Infrared Laser Heterodyne Instrument

    中川広務, 青木翔平, 笠羽康正, 村田功, 岡野章一

    日本地球惑星科学連合2013大会 2013/05/19

  233. 赤外レーザヘテロダイン分光器広帯域化のための外部共振器開発

    中川広務, 青木翔平, 笠羽康正, 村田功

    第27回大気圏シンポジウム 2013/02/28

  234. External cavity for QCL Installed in IR Heterodyne Spectroscopy International-presentation

    H. Nakagawa, S. Aoki, Y. Kasaba, I. Murata

    Symposium on Planetary Science 2013 2013/02/20

  235. Mid-Infrared LAser Heterodyne Instrument (MILAHI) for dedicated telescope, PLANETS, at the top of the Mt. Haleakala, Hawaii International-presentation

    H. Nakagawa, S. Aoki, M. Kuroda, Y. Kasaba, I. Murata, G. Sonnabend, S. Okano

    GCOE Symposium 2012 2012/09/25

  236. 超高分解能中間赤外ヘテロダイン分光器の開発

    中川広務, 青木翔平, 黒田壮大, 笠羽康正, 村田功, G. Sonnabend, 岡野章一

    南極赤外テラヘルツ干渉計検討会 2012/09/10

  237. Mid-Infrared LAser Heterodyne Instrument (MILAHI) for dedicated telescope, PLANETS, at the top of the Mt. Haleakala, Hawaii International-presentation

    H. Nakagawa, S. Aoki, M. Kuroda, Y. Kasaba, I. Murata, G. Sonnabend, S. Okano

    AOGS-AGU(WPGM) Joint Assembly 2012/08/13

  238. Ultra-high resolution observations of planetary atmospheres using Mid-Infrared Laser Heterodyne Instrumen (MILAHI)

    中川広務, 青木翔平, 笠羽康正, 黒田壮大, 村田功, G. Sonnabend, 岡野章一

    日本地球惑星科学連合(JPGU) 2012/05/20

  239. 超高分解能中間赤外ヘテロダイン分光装置の開発現状

    中川広務, 青木翔平, 笠羽康正, 黒田壮大, 村田功, G. Sonnabend, 岡野章一

    第26回大気圏シンポジウム 2012/03/01

  240. ハレアカラ山頂惑星観測専用高分解能分光中間赤外レーザヘテロダイン分光

    中川広務, 青木翔平, 笠羽康正, 黒田壮大, 村田功, G. Sonnabend, 岡野章一

    第12回宇宙科学シンポジウム 2012/01/05

  241. 超高分解能分光装置レーザヘテロダイン分光

    中川広務, 青木翔平, 笠羽康正, 黒田壮大, 村田功, 岡野章一

    第130回地球電磁気・地球惑星圏学会総会 2011/11/03

  242. Mid-infrared Heterodyne Spectroscopy Dedicated to Observation of Planets at Haleakala, Hawaii International-presentation

    H. Nakagawa, S. Aoki, M. Kuroda, Y. Kasaba, I. Murata, G. Sonnabend, S. Okano

    EPSC-DPS Joint Assembly 2011/10/02

  243. Heterodyne infrared specgtroscopy for high-spectral resolution observations of planetary atmosphere

    中川広務, 青木翔平, 笠羽康正, 黒田壮大, 村田功, 岡野章一

    日本地球惑星科学連合2011大会 2011/05/22

  244. Daily variations of the mesospheric wind using IR heterodyne spectroscopy International-presentation

    H. Nakagawa, M. Sornig, N. Hoshino, G. Sonnabend, D> Stupar, Y. Kasaba, S. Aoki, I. Murata, S. Okano

    International Symposium on Planetary Science 2011/03/08

  245. 高波長分解分光観測によって得られた金星中間圏風速場の日変化

    H. Nakagawa, M. Sornig, N. Hoshino, G. Sonnabend, D> Stupar, Y. Kasaba, S. Aoki, I. Murata, S. Okano

    第25回大気圏シンポジウム 2011/02/21

  246. 赤外ヘテロダイン分光器開発と金星中間圏風速観測

    中川広務, 笠羽康正, 青木翔平, 村田功, 岡野章一, 星野直哉, M. Sornig, G. Sonnabend, D. Stupar

    第11回宇宙科学シンポジウム 2011/01/05

  247. 火星メタン観測最新の観測手法とデータ

    宇宙における生命の総合的考察とその研究戦略研究会 2010/12/22

  248. Searches for volcanic or crustal gas in the recent Martian atmosphere by ground-based observation International-presentation

    COSPAR 2010 Assembly 2010/07

  249. High spectral resolution observations of Martian atmosphere in infrared-submillimeter range from ground-based instruments International-presentation

    EGU 2010 Assembly 2010/05

  250. 火星微量大気成分研究にむけた赤外レーザーヘテロダイン分光器の開発

    JPGU 2010/05

  251. High spectral resolution observations of Martian atmosphere in infrared-submillimeter range from ground-basedinstruments International-presentation

    EGU 2009 Assembly Meeting 2010/04

  252. 火星大気進化解明に向けた赤外・サブミリ波高分散分光観測

    第11回惑星圏研究会 2010/03

  253. 火星大気進化解明に向けた地上高分散分光観測

    第24回大気圏シンポジウム 2010/02

  254. 火星大気進化解明に向けた赤外・サブミリ波高分散分光観測

    第10回宇宙科学シンポジウム 2010/01

  255. Global feature of HF radar reflected from near-surface derived from Kaguya/LRS International-presentation

    EGU 2009 Assembly Meeting 2009/04

  256. 火星大気進化の解明に向けた衛星・地上からの高分散分光観測

    第10回惑星圏研究会 2009/03

  257. Global feature of HF radar reflected from near-surface derived from Kaguya/LRS

    RISE研究会 2009/03

  258. UV optical measurements of the Nozomi spacecraft interpreted with a two-component LIC-flow model International-presentation

    Voyager in Heliosheath: Observations, models, and plasma physics conference 2009/01

  259. 高分散分光観測による地球型惑星の大気ダイナミクス・組成変動の研究

    第9回宇宙科学シンポジウム 2009/01

  260. Lunar global feature of HF radar reflected from near-surface derived from Kaguya/LRS International-presentation

    AGU 2008 Fall Meeting 2008/12

  261. かぐやが拓く月惑星内部のイメージング観側

    第4回学際領域における分子イメージングフォーラム 2008/10

  262. KAGUYA/LRSによって得られた月全球におけるHF帯サウンダ反射エコー特性

    第41回月・惑星シンポジウム 2008/08

  263. SELENE/LRS team, Performance assessment and data processing of KAGUYA/LRS using man-made radio from Earth International-presentation

    AOGS 2008/06

  264. ubmillimeter observation of SO2, and isotope of CO on Mars

    第9回惑星圏研究会 2008/03

  265. SO2 and vertical profiles of the molecular gas in the upper atmosphere on Mars : Preliminary results

    第22回大気圏シンポジウム 2008/02

  266. KAGUYA/LRS observations of man-made radio emissions

    宇宙科学シンポジウム 2008/01

Show all Show first 5

Research Projects 28

  1. 金星エアロゾルその場測定法の開発と大気モデルへの結合・衛星観測による実証

    中川 広務, 狩生 宏喜, 黒田 剛史, 玄 大雄

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2024/06/28 - 2027/03/31

  2. 高感度小型多波長赤外線センサ技術の開発/高感度小型多波 長赤外線センサ開発およびフィールド実証

    System: 経済安全保障重要技術育成プログラム

    2023/04 - 2027/03

  3. New isotope observations of Mars atmospheric evolution: International collaboration of European and Japanese Mars exploration missions

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

    Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

    Institution: Tohoku University

    2022/10 - 2027/03

  4. 火星における炭素循環の解明

    中川 広務

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 学術変革領域研究(A)

    Institution: 東北大学

    2023/04 - 2025/03

  5. 初期火星における生命関連有機分子の生成に関する研究

    古川善博, 寺田直樹, 掛川武, 石田章純, 中川広務, 黒田剛史

    Offer Organization: 自然科学研究機関亜ストロバイオロジーセンター

    System: サテライト研究

    Institution: 東北大学

    2021/04 - 2025/03

  6. 赤外マルチファイバー技術と先端分光技術の融合で惑星展開を目指す小型赤外分光器開発

    笠羽 康正, 平原 靖大, 中川 広務

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2021/07/09 - 2024/03/31

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    3年間で予定する開発内容のうち、まず基盤となる以下を先行実施した。 (A) 赤外線ファイバーの光路結合・分割技術開発: (a1) 光の入射条件に依存する中空光ファイバの適切な特性評価を行う光学系を確立。10 μm CO2レーザーと9.6μm 量子カスケードレーザーを結合効率90 %以上で中空光ファイバーに入射でき、また85 %/mの高効率伝送を確認した。(a2) インコヒーレントな太陽光でも89.6 %/mの伝送効率を初めて確かめた[口頭発表: 塚田+ 2021他]。 (a3) 中空ファイバーバンドル開発に着手: このシーリングとリフォーカスに用いる赤外透過型マイクロレンズアレイとの結合に取り組んだ。非球面平凸レンズアレイ(1mmφ×10)により、シース材料が不要で近接配置可能な2次元バンドルHCWの試作・性能評価を可能とした。 (B) 分光システムとの結合検討:より難度の高いb2と初動のため機器導入を要するb4を中核に行った。 (b2)ヘテロダイン分光: CO2レーザーをLOとし、中空光ファイバとファイバカプラを組み込んでレーザーヘテロダイン分光に成功。 「フルファイバー光学系」のレーザーヘテロダイン分光の信号取得効率を評価し、ミラーを多用し大型・複雑となっていた従来光学系と同等のシステム雑音温度(10μmでショット雑音限界に迫る約3,000 K)を確認した。(b4)フーリエ分光: この装置は東北大・名大には無く新規製造する必要がある。名大科研費との合算も得てまず初動に要するハードウェア(ミニフーリエ制御ユニット)および制御ソフトウェアを導入し、まずその性能評価を行い、さらにファイバーと専用Geレンズを介して結合した中間赤外線ファイバー分光器を開発した。波長分解能R~100(λ=8μm)、空間分解能~0.1 mmでのスペクトルイメージングを7-13μm(メーカー保証上限を越える)で可能であることを確認。光学材料計測等への応用を可能とした [査読論文: Maejima+ 2022; 口頭発表: 根岸 2022]。

  7. Variations and evolutions of Martian atmospheric environment investigated in the collaboration with European and US missions

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2019/04 - 2024/03

  8. 欧米火星探査機群観測データによる新大気リトリーバル技術の検証(3)〜欧 ExoMars Trace Gas Orbiterおよび日MMXへの応用展開準備〜

    笠羽康正, 中川広務, 青木翔平, Arnaud Mahieux, 小暮李成, 岩渕弘信, 出村裕英

    Offer Organization: 会津大学宇宙情報科学研究センター

    System: 2021年度会津大学宇宙情報科学研究センター共同研究

    Institution: 東北大学

    2021/04 - 2022/03

  9. 火星大気における水環境進化理解のための観測的実証研究

    中川 広務

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 新学術領域研究(研究領域提案型)

    Category: 新学術領域研究(研究領域提案型)

    Institution: 東北大学

    2020/04 - 2022/03

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    水をたたえたハビタブル惑星から寒冷乾燥した惑星へと変遷を経た火星。このような気候変動を理解することは地球型惑星の水環境進化の解明に本質的であるが、宇宙空間へ流出および地下へ取り込まれた水の定量的な見積もりやそのメカニズムはわかっていない。 計画Aでは、地下水圏/表層水と大気との水のやりとりを計画、Bでは 水の新たな高速散逸プロセスが水環境進化に与える影響を定量的に評価すること、計画Cでは大気深部にまで達する太陽放射線とそれに伴うオーロラ現象が水環境・大気組成に与える影響を定量的 に評価することを目指した。計画Aでは、大気大循環モデルを用いた詳しい数値実験を行った結果、斜面上に現れる暗い筋模様(RSL)からの水漏出に代表される地下水圏/表層と大気との水やりとりを捉えるための観測必要精度を規定することができた。計画Bでは、最新探査機データを解析することにより、ダストストーム時・近日点付近においてダスト加熱による大気膨張・ハイグロポーズ消失・大気循環強化・乱流活動増大により水の新たな高速散逸パスが形成される様子や散逸大気組成が変動する様子を明らかにした。計画Cでは、太陽高エネルギー粒子降り込みに伴うオーロラ発光を再現することに成功し、数MeVの陽子が重要な役割を果たしていることが明らかとなった。同時に地球同様HOxによるオゾン破壊が火星でも起こりうることを示唆し、必要な観測精度を検証した。

  10. Development of mid-infrared hollow core waveguide for GIGMICS on the new telescope at Haleakala

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Nagoya University

    2019/04 - 2022/03

  11. Vertical transport from the lower atmosphere to space via atmospheric waves on Mars

    Nakagawa Hiromu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2019/04 - 2022/03

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    We clarified the process of water and material transport to the upper atmosphere via atmospheric waves using a space-born and ground-based observations. (1) Our new-developed fast radiative calculation code is capable to retrieve the density and particle size of dust and ice clouds in the Martian atmosphere. (2) Using occultation observations in the Martian middle atmosphere, we clarified the vertical transport process of water vapor, the temperature structure in the night side, the upward propagation process of atmospheric gravity waves, and the acceleration of zonal winds during the dust storm. (3) Seasonal changes in the lower atmosphere and variations associated with dust storms can significantly alter the composition of the upper atmosphere, which can be escaped into space.

  12. 欧米火星探査機群観測データによる新大気リトリーバル技術の検証(2)〜欧 ExoMars Trace Gas Orbiterおよび日MMXへの応用展開準備〜

    笠羽康正, 中川広務, 青木翔平, Arnaud Mahieux, 小暮李成, 岩渕弘信, 出村裕英

    Offer Organization: 会津大学宇宙情報科学研究センター

    System: 2020年度会津大学宇宙情報科学研究センター共同研究

    Institution: 東北大学

    2020/04 - 2021/03

  13. 赤外域ファイバーオプティクス:要素技術開発および惑星探査機・着陸機搭載用小型分光器への応用検討〜その2〜

    Offer Organization: 宇宙科学研究開発機構

    System: 2020年度搭載機器基礎開発研究費

    Institution: 東北大学

    2020/04 - 2021/03

  14. 赤外域ファイバーオプティクス:要素技術開発および惑星探査機・着陸祈祷搭載よう小型分光気への応用検討

    中川広務, 笠羽康正, 平原靖大, 松浦祐司, 片桐崇史, 山崎敦

    Offer Organization: 公益財団法人山田科学振興財団

    System: 2018年度研究援助金

    Institution: 東北大学

    2019/04 - 2021/03

  15. 欧米火星探査機群観測データによる新大気リトリーバル技術の検証〜欧 ExoMars Trace Gas Orbiterおよび日MMXへの応用展開準備〜

    笠羽康正, 中川広務, 青木翔平, Arnaud Mahieux, 小暮李成, 岩渕弘信, 出村裕英

    Offer Organization: 会津大学宇宙情報科学研究センター

    System: 2019年度会津大学宇宙情報科学研究センター共同研究

    Institution: 東北大学

    2019/04 - 2020/03

  16. 探査機観測データ解析と搭載機器開発による火星の水環境進化の解明

    中川 広務

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 新学術領域研究(研究領域提案型)

    Category: 新学術領域研究(研究領域提案型)

    Institution: 東北大学

    2018/04 - 2020/03

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    本研究では、火星水環境進化を明らかにすべく、最新の探査衛星による観測データ解析と長期的視野にたった搭載機器開発を推進し、以下を達成した。 [1] 下層から上層に水分子が輸送されるメカニズムの定量的理解:新たな放射コードの開発を行い、水分子とダスト・エアロゾルとの二次元高度分布をダスト嵐時・静穏時とにわけて解析を行った。また、下層大気現象に伴う発生・上方伝搬する大気重力波の特徴とその背景場・水輸送に与える影響を明らかにし、その成果を投稿・審議中である。加えて、TGO/NOMADデータ解析により、水蒸気・ダストのダスト嵐時の緯度分布を初めて捉えたことで、背景風速場との関連性を明らかにし、ハドレー循環が水輸送に大きな役割を担っていることを示唆し、その成果を出版した。 [2] 上層水分子が水散逸量に及ぼす影響の定量的理解:TGO衛星によって中層域のHDO/H2Oを掌握し、さらにMAVEN衛星によって均一圏界面高度の変動および上層の鉛直輸送が水散逸量に及ぼす影響を評価したことで、散逸量見積もりに重要なfractionation factorのばらつき・変動について明らかにした。均一圏界面高度の研究成果を論文に投稿・審議中である。 [3] 水分子の上方輸送の源となる下層大気現象・水循環の定量的理解:既存のMEX/OMEGAデータを整理し、ダスト嵐時に伴う大気の膨張・ダスト到達高度の上昇・水蒸気の高高度輸送の様子を捉えた。また、短時間スケールを明らかにする新たな手立てとしてMMX搭載MO装置開発を推進、観測に必要な広角視野光学系の導入、火星観測を可能にする運用検討を実施し、その成果を現在論文にまとめるべく執筆準備中である。

  17. Unveiling the material circulation in the Venusian atmosphere with coordinated spacecraft and ground-based observations

    NAKAMURA MASATO

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Japan Aerospace EXploration Agency

    2016/04 - 2020/03

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    The atmospheric material circulation on Venus related to cloud formation has been studied by cooperative observations by Akatsuki spacecraft and ground-based telescopes and numerical modeling. We have clarified the structure of the mean meridional circulation and the characteristics of various planetary-scale waves, which may be related to the maintenance of the high-speed zonal flow, by cloud tracking using infrared images covering the whole local time as well as ultraviolet images. We obtained observational clues that angular momentum transport caused by thermal tides contributes to the maintenance of high-speed zonal winds. For integrating observational data with numerical modeling, data assimilation was successfully conducted. The global temperature structure was observed by radio occultation. The cloud physics was introduced into the atmospheric general circulation model, and the distribution of sulfuric acid clouds consistent with the observations was reproduced.

  18. Regional coupling between surface, atmosphere, and space for understanding water cycle on Mars

    Nakagawa Hiromu, KASABA YASUMASA, SAGAWA HIDEO, KURODA TAKESHI, AOKI SHOHEI

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2016/04 - 2019/03

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    TGO observations first reveal the vertical distribution of the HDO/H2O up to 80 km, which suggest an increase of the abundance of H2O and HDO during the dust storm. Simultaneously, our ground-based observations found a remarkable enhancement of the atmospheric temperature at 80 altitudes during the dust storm. This could cause stronger atmospheric circulation and preventing ice cloud formation, which may confine water vapor to lower altitudes. Our MAVEN result indicates the detection of an extensive layer of warm air at altitudes 70 to 90 km, which has a good agreement with above. The atmospheric composition and wave activity in the upper atmosphere dramatically changes in season. Our study proposes an effective and high-speed mass/energy transportation into the upper atmosphere. The resultant stronger atmospheric circulation could carry the dust and water vapor into the upper atmosphere, which drive direct escape of water to space in a time-scale of weeks or months.

  19. Role of vertical coupling on the atmospheric escape from Mars

    Terada Naoki, KURODA Takeshi, YOSHIKAWA Ichiro, Medvedev Alexander S., Brain David, MATSUMOTO Yosuke, TERADA Kaori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04 - 2018/03

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    The escape of ionospheric CO2+ from Mars is a key to understand the drastic climate change on ancient Mars and investigated in this study. The effects of momentum transfer from the solar wind on the ionospheric CO2+ escape were evaluated by introducing an entropy-based mixing layer model and by utilizing a multispecies magnetohydrodynamic model of the solar wind interaction with the Martian ionosphere. The effects of gravity waves propagating from the lower and middle atmosphere were also investigated using satellite observations and numerical experiments. We found that gravity waves with a vertical wavelength longer than 200km have large impacts on the mixing ratio and escape rate of CO2 from the Martian upper atmosphere.

  20. Investigation of solar panels system planets by visible and infrared high-dispersion spectroscopy on small/medium-sized telescopes at Haleakala, Hawaii

    Kasaba Yasumasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04 - 2018/03

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    In cooperation with Univ. Hawaii, we established the operation of 40 cm Schmidt (T40: visible) and 60 cm Cassegrain (T60: visible/infrared) at the top of Haleakala, Hawaii. We attached our infrared/visible spectrometers developed by us, and run T40 and T60 as the telescopes dedicated to solar system planets. They acted as a part of the international observation network supporting to JAXA UV/EUV space telescope 'Hisaki' and NASA Juno (Jupiter), ESA Mars Express, NASA MAVEN, ESA ExoMars Trace Gas Orbiter (Mars), JAXA Akatsuki (Venus), and (Jupiter). We utilized those unique observational tools and achieved the investigations for Jupiter (Io torus structures and links to the magnetosphere, auroral structure and short-time fluctuations), Mars (upper atmospheric temperature and velocity fields, lower atmospheric trace gases), etc.

  21. Understanding of Jovian atmosphere-ionosphere-magnetosphere coupling process based on optical and radio telescopes from ground and space

    Sakanoi Takeshi, YONEDA Mizuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2014/04/01 - 2017/03/31

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    The purpose of this study is to clarify the atmosphere-magnetosphere coupling in Jupiter using continuous monitoring data of planetary atmosphere and plasma phenomena obtained with our observation facilities at the summit of Haleakala, Hawaii (altitude 3000 m). In the summer of 2014, the Tohoku University 60 cm telescope was relocated to Haleakala, and we started continuous observation of Io’s sulfur ion torus emission at 673 nm with a visible high-resolution spectrograph. Furthermore, we carried out simultaneous observation of Io’s torus emission and Jupiter’s aurora in the ultra-violet range with a planetary space telescope Hisaki/EXCEED, and examined the causal relationship between the Io torus dynamics and the Jupiter auroral activity associated with the activation of Io’s volcano particularly for the events occurred in January 2015. In addition, we performed the precise observation of Jupiter infrared aurora using the Subaru telescope and NASA/IRTF every year.

  22. 火星生命の痕跡を探るための地上からの超高分解能赤外分光連続観測と国際連携観測 Competitive

    中川 広務

    Offer Organization: 自然科学研究機関アストロバイオロジーセンター

    System: プロジェクト公募

    2015/04 - 2017/03

  23. Investigation of Martian methane by using ultra-high resolution spectroscopy onboard dedicated telescope at Mt.Haleakala, Hawaii

    Nakagawa Hiromu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2013/04 - 2016/03

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    A new Mid-Infrared Laser Heterodyne Instrument (MILAHI) with ultra-high resolution was developed for detection of Martian methane by using dedicated ground-based telescope for planetary science at Mt.Haleakala, Hawaii. The instrument has been successfully installed onboard Tohoku-60cm telescop at the top of Mt.Haleakala, and obtained CO2 non-LTE emission spectra of Mars and Venus. Obtained data and model predictions by radiative transfer code gave the scientific capabilities and measurement sensitivities of the MILAHI. This result has been accepted in Planetary Space Science (in printing). CO2 isotopes observation has been performed by using another IR heterodyne instrument, HIPWAC onboard IRTF NASA telescope, in order to understand the atmosphere-surface interactions. The Mars measurement by using SOFIA stratospheric telescope was also performed to detect Martian methane. The international support campaigns for orbiter missions, such as MAVEN and TGO have been prepared.

  24. Visible and infrared high dispersion spectroscopic investigation of the solar system planets in the Hawaii Haleakala observatory

    KASABA Yasumasa, SAKANOI Takeshi, MURATA Isao, NAKAGAWA Hiromu, KAGITANI Masato, OKANO Shoichi, YOSHIKAWA Ichiro, YAMAZAKI Atsushi, KAMEDA Shingo, TAO Chihiro, YONEDA Mizuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2012/04/01 - 2015/03/31

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    We Tohoku Univ. have operated 40cm telescope at Mt. Haleakala of Maui Island by the cooperation with Univ. Hawaii. Utilizing its wide FOV and high dispersion spectroscopic capabilities, we investigated (1) the origin of the variations of Herman sodium atmosphere (with NASA/MESSENGER orbiter), (2) the effects of Io torus to Jovian magnetospheric activities (with JAXA/Hisaki EUV space telescope). We also investigated following targets by related telescope and satellites; (3) the search of escaping atmospheres of Venus and Mars (by Hisaki); (4) the study of velocity field and trace gas elements in the upper atmosphere of Venus (at Kitt Peak, Hida, and Haleakala), and (5) the search of crust origin gas (H2O/HDO, CH4) in the Martian atmosphere (at Manua Kea, Haleakala). Moreover, at the Haleakala observatory, (6) we moved 60cm telescope from Iitate, Fukushima (first light: fall 2014), and constructed the 2m telescope (first light: the end of 2016) under the collaboration with Univ. Hawaii.

  25. Atmospheric dynamics and variations of minor components in the terrestrial planets by high-dispersion spectroscopic studies

    KASABA Yasumasa, NAKAGAWA Hiromu, MURATA Isao, SAKANOI Takeshi, OKANO Shoichi, FUJIWARA Hitoshi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2010 - 2012

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    We executed thespectroscopic/theoretical studies of Marsian and Venusian atmospheres with the instrument developments. (a) Atmospheric dynamics and variations of minor components: [A-1.grounbased observation] Velocity/temperature/H2O2/HDO/ etc. were studied by IR and submm observations. [A-2. Orbiter observations] Temperature/clouds/minor components were studied by Venus Express and Mars Express data sets. [A-3: Numerical models] GCMs were developed and utilized with the observational studies. (B)Spectrometer developments: [B-1. For Ground-based] We succeeded to the development of MIR Heterodyne spectrometer. [B-2. For Orbiter] Base investigation was executed. It was utilized for the studies of Martian / Jovian submm instruments.

  26. Observation of ozone, nitrogen dioxide, chlorine dioxide, and bromine monoxide by the optical ozonesonde with spectrometer

    MURATA Isao, KASABA Yasumasa, NAKAGAWA Hiromu, FUJIWARA Hitoshi, NOGUCHI Katsuyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2010 - 2012

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    The purpose of this research was the validation of our new instrument that can measure NO_2, OClO, and BrO with O_3. We prepared for the balloon experiment in 2010 but quitted due to the trouble of CPU in the instrument. We checked and improved the instrument in2011 and again prepared for the balloon experiment in 2012 but no balloon launched in this year due to the unusual meteorological condition. Therefore, test measurements were performed at ground on the sunrise and culmination. We confirmed that at least the stratospheric column of NO_2 can be derived.

  27. Development of the external cavity for IR heterodyne spectroscopy

    NAKAGAWA Hiromu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2010 - 2012

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    We develop the external-cavity system at mid-infrared wavelengths as a local oscillator in a heterodyne receiver for observations of Martian atmospheric methane and related species. Tuneability over 20cm-1 was demonstrated using a Littrow-grating setup, and which allows for good coverage of molecular transitions of methane and hydrogen peroxide. We show that its spectral stability and side mode suppression are excellent for IR heterodyne measurements.

  28. 星間水素散乱光衛星観測による太陽風3次元構造の研究

    中川 広務

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特別研究員奨励費

    Institution: 東北大学

    2005 - 2006

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    申請者は、本研究の最重要目的である「太陽風速度・質量フラックスの全緯度での太陽活動周期変動」を導出するための解析手法を確立し、世界で初めて導出することに成功した。星間水素散乱光観測データとモデルシミュレーションを用いた独自の解析手法を発展させ、名古屋大学太陽地球環境研究所小島正宜教授らから提供いただいた太陽風速度3次元データを組み合わせることで、太陽風質量フラックスの長期変動を連続的に捉えることに成功したのである。太陽圏極域のコロナホールが消滅、再形成される様子を連続的に捉えることができたことは、直接観測では得ることのできない重要な結果である。南半球と北半球とで振る舞いの違う南北非対称構造が発見されたことも、一度に全緯度を知ることのできない直接探査では得られない本研究独自の結果である。現在JGRへ論文を投稿しており、レフリー審査修正を終えた。 また、太陽圏大規模構造および太陽圏界面で発生する中性水素原子の2次的な流入成分について、Space Research Center of the Polish Academy of SciencesのM.Bzowski教授との共同研究は非常に有意義な結果を残した。最新の観測データを反映した3次元時間発展モデルと日本火星探査衛星のぞみ観測データとを比較し、世界で初めて星間水素2次成分を1次成分と区別し、その寄与を定量的に議論することに成功した。結果、これまで考えられてきた以上に2次成分が1次成分から大きくずれて流入していることがわかった。EGU、COSPAR等の国際会議で数値モデル専門家(Dr.Izmodenov, Dr.Quemerais, Dr.Pogorelov etc)と議論した結果、現在のモデルでは説明不可能であることがわかった。これは非常にインパクトのある結果である。現在、A&A特集号で発表予定である。

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Teaching Experience 3

  1. Excercise of Planetary Atmosphere Physics Tohoku University

  2. 地球物理学実験(東北大学理学部 地球物理学コース 2・3 年次学生) 東北大学

  3. 地球物理学実験(東北大学理学部 地球物理学コース 2・3 年次学生) 東北大学

Social Activities 32

  1. 仙台二華中科学部x仙台市天文台x東北大地球物理サイエンス講座

    2024/10/07 - 2024/11/01

  2. 火星でオーロラは光っていますか?

    成蹊学園特別授業

    2024/02/20 - 2024/02/20

  3. 国際共創による火星探査 の最前線と今後

    成蹊大学講演会

    2024/02/20 - 2024/02/20

  4. 仙台市天文台×東北大学大学院理学研究科公開サイエンス講座 2023年度第1回「よってらっ星!見てらっ星!惑星冒険★秋まつり」

    仙台市天文台×東北大学大学院理学研究科公開サイエンス講座

    2023/09/09 - 2023/09/09

  5. 惑星ふしぎ発見!君も太陽系を冒険しよう!

    学都「仙台・宮城」サイエンス・デイ2023

    2023/07/16 - 2023/07/16

  6. SGEPSS 一般向け公開イベント「体験型★地球・宇宙マスターを目 指せ」

    SGEPSS 一般向け公開イベント

    2022/11/03 - 2022/11/03

  7. 向山こども園たなばたものがたり

    2022/08/05 - 2022/08/05

  8. 仙台市天文台×東北大学大学院理学研究科公開サイエンス講座「ワ クワク惑星探査〜行け行け僕らの火星ローバー!」

    仙台市天文台×東北大学大学院理学研究科公開サイエンス講座

    2022/07/31 - 2022/07/31

  9. 仙台市天文台×東北大学大学院理学研究科公開サイエンス講座「ス ペースゼミ〜研究者と一緒に宇宙を調べよう〜」

    仙台市天文台×東北大学大学院理学研究科公開サイエンス講座

    2021/07/10 - 2021/07/10

  10. オーロラと宇宙シンポジウム 成蹊大学「はやぶさ2からMMXへ〜火星の水の起源と行方を追え」

    2021/02/20 - 2021/02/20

  11. 仙台市天文台X東北大学大学院理学研究科公開サイエンス講座「地球vs宇宙〜海と火山」

    2019/09/15 - 2019/09/15

  12. 太陽系の歩き方

    2019/07/14 - 2019/07/14

  13. SGEPSS一般向け公開イベント「はかせとワクワク大科学実験★地球と宇宙のひみつを解明しよう!」

    SGEPSS一般向け公開イベント

    2018/11/23 - 2018/11/23

  14. オーロラを体感しよう!

    2014/07/01 - 2014/09/27

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    全国オーロラ講演会が手がける全天周オーロラを仙台市天文台プラネタリウムに投影、ダイナミックなオーロラ映像をご覧頂き、オーロラ最新研究に関連した展示企画展を催します。

  15. 火星へ

    2018/09/28 -

  16. • 学都「仙台・宮城」サイエンス・デイ2018「火星に住めるかな?」

    サイエンス・デイ2018

    2018/07/15 -

  17. 仙台市天文台×東北大学大学院理学研究科公開サイエンス講座 巨大惑星をめぐる旅

    2017/08/19 -

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    ラジオ工作、人工衛星折り紙、ミニ講演会、小惑星サンプル展示を通して、子供達・社会に向けて当該分野の普及・理解に努める。

  18. 学都「仙台・宮城」サイエンス・デイ 「惑星(わくせい)ってなんだろう?」

    2017/07/16 -

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    『学都「仙台・宮城」サイエンス・デイ』とは、ブラックボックス化した現代社会で実感する機会の少ない科学や技術の"プロセス"を子どもから大人まで五感で感じられる場づくりを目指し、既存の枠を超えた多様な主体と連携のもと、学都仙台・宮城の地で、2007年から毎年開催している体験型・対話型の科学イベントです。

  19. 宮城第一高等学校コスモス・カレッジ・インターンシップ

    2016/09/30 -

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    大学や研究機関で活躍されている方から講義を受け,上級学校での教育や研究に触れることで,学ぶことの意義を考えさせ,学びへの意欲を喚起する。また,学問と社会との関係を理解させることで,将来,自分を活かしながら如何に社会に貢献していくべきかを考える機会とし,主体的に進路選択ができることをねらいとする。

  20. 伝統的七夕ライトダウンイベント(星空観察会)

    2016/08/09 -

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    屋内での星のスライド上映。星空観望会。パネル展示。

  21. コスモスカレッジインターンシップ(CCI)出前講義

    2014/10/02 -

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    1・2年次生を対象に、現在高校で学んでいる基礎学力が、大学現場での高等教育においてどのように生かし、関連させることが出来るのかを想起・発見させ、大学進学という進路選択に対し具体的取り組みや大学におけるリベラルアーツ及び専門教育への理解、また大学での教育活動に対する理解・関心を高めることで高校でのさらなる基礎学力の向上を目指す意欲を再喚起することを狙いとする。

  22. AURORA2013年太陽活動極大期のダイナミックなオーロラ映像をグリグリ動かそう!

    2013/12/23 -

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    全国オーロラ講演会が手がける全天周オーロラをスクリーンに投影。太陽活動が活発だった2013年にアラスカと昭和基地で撮影されたダイナミックかつ貴重な最新映像をみてもらう。

  23. 地球電磁気・地球惑星圏学会一般公開イベント2013電波をキャッチ!ラジオをつくろう

    2013/11/02 -

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    ラジオ工作実験を通じて地球惑星科学についてわかりやすく伝える

  24. 学都「仙台・宮城」サイエンスデイ2013

    2013/07/21 -

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    わたしたちが住むこの地球は、火星や金星、木星などたくさんの兄弟星とともに宇宙を旅しています。その兄弟星たちはどんな星なのだろうか?わたしたちの地球とはどう違うのだろうか?このプログラムでは、太陽系に広がる地球とは違った世界を探検してみましょう!

  25. カフェ・ド・ミュウ 月観望会

    2013/03/27 -

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    幼稚園児・小学生向けに、お月様をみながら月について解説するイベントです。

  26. 学都「仙台・宮城」サイエンスデイ2012

    2012/07/15 -

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    このブースでは、「探査機が捉えた映像の上映」から、惑星探査に必要な「電波受信器(簡易ラジオ)の製作」を行います。また、科学者が惑星を調べるときに使う「光を分離する装置や赤外カメラ」を使用し、太陽系探検を体感することができます。

  27. 全国オーロラ講演会2011

    2011/12/25 -

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    オーロラ関連科学の最前線で活躍している現役科学者たちが、秒単位で色も形もダイナミックに変化するオーロラ関連科学の魅力をお伝えします。

  28. 学都「仙台・宮城」サイエンスデイ2011

    2011/07/10 -

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    プログラム内容は、美しいオーロラ映像の上映から、オーロラ関連研究の最前線に加え、オーロラ電波を受信するような簡易ラジオの製作体験、人工オーロラ発生機によるオーロラ仕組みの解説まで幅広い内容で、オーロラの神秘的な世界を体験してもらう企画です。宇宙天気予報の中でも究極の課題であるオーロラ予報(オーロラがいつどこで光るか)の研究も紹介します。

  29. サイエンスカフェにいがた

    2011/01/08 -

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    第45回サイエンスカフェにいがたにて「オーロラと宇宙〜われわれの地球と兄弟星の大気進化」(同カフェ主催)の講師を勤めた。神秘的な世界を体験してもらうとともにわれわれの惑星研究の最新結果の普及に努めた。

  30. オーロラ映像で神秘の世界体験 8日、新潟

    2011/01/06 -

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    第45回サイエンスカフェにいがた「オーロラと宇宙〜われわれの地球と兄弟星の大気進化」の開催告知記事

  31. 積水ハウス青葉のまちイベント”はじめての天体観測”

    2010/01/09 -

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    「積水ハウス青葉のまち」において、宇宙を感じる暮らしを提案。街中でも見える星や惑星を解説。双眼鏡や身近に購入可能な望遠鏡・大学の望遠鏡を用いて実際に天体観察を実施。

  32. サイエンスカフェ講演 (第26回講演内にて)

    2007/09/12 -

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    立ち上げ作業にもかかわった東北大学サイエンスカフェにて、日本初月探査衛星かぐや打ち上げ直前の広報講演を行った。

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Media Coverage 1

  1. 太陽 vs 地球地場 天使か?悪魔か?

    NHK BS コズミックフロント 番組構成コメント

    2022/06

    Type: TV or radio program

Other 17

  1. 赤外ヘテロダイン分光器用光ファイバの開発検討

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    赤外ヘテロダイン分光器用に光ファイバを共同で開発する。

  2. 火星生命の痕跡を探るための地上からの長高分解能赤外分光連続観測と国際連携観測

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    近年の火星周回機・大型地上望遠鏡・着陸機の観測から火星における生命・地殻活動の証拠となりうる非常に興味深いメタンの存在が示唆された. しかし, メタンの起源, 生成・消失メカニズムの解明には, 全球的に時間変化を捉える連続観測が本質的であり, 公募による断続的な大型装置観測では不十分で, 自前の装置・望遠鏡が必要である. 本研究では, 東北大学ハワイ・ハレアカラ観測拠点に実装した赤外域超高分解能分光観測装置を用いて, 火星メタンを地上から高確度に検出する. 加えて, H2O・CO2同位体比変動を高精度で捉えることで, 大気-表層相互作用を明らかにし, メタンの起源, 生成・消滅メカニズムの解明に至る. 連続追跡を実現することで, 欧州火星探査衛星Trace Gas Orbiterミッションとの国際連携を可能とする地上観測体制を整える. メタンの起源を明らかにし, 火星に生命が存在し得たのか(しうるのか)という重要な未解明問題を解決することを目的とする. これは, より普遍的な地球型惑星環境・惑星大気進化への理解, 生命の維持しうる惑星環境の形成条件の解明につながる研究となる.

  3. MMX搭載近赤外分光器MacrOmegaの開発

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    日本が主導するフォボスサンプルリターンミッションMMXに搭載予定の近赤外分光器MacrOmegaを仏IASと共同で開発する。

  4. ハワイ専用望遠鏡と国際連携による火星生命の痕跡を探る観測的研究

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    火星の生命の痕跡となる大気中の微量大気成分メタンの検出を目指す。

  5. 火星探査衛星MAVENを用いた火星大気上下結合の解明

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    最新の衛星観測により, 火星超高層大気においてO2+やCO2+などの重イオンが大量に宇宙に散逸していることが明らかになった. これは現況の理論では説明がつかず,下層大気からCO2を上層に輸送する機構が存在せねばならない. 我々は独自の観点から重力波に着目し, それによる下層大気から上層大気への物質・運動量・エネルギー輸送を調べることで, 下層大気の大気散逸への影響を明らかにすることを目的とする.

  6. ハワイ・ハレアカラにおける赤外レーザーヘテロダイン分光器を用いた惑星観測

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    ハワイ山頂に移設した東北大学60cm望遠鏡に、本グループが開発した赤外レーザヘテロダイン分光器を実装し、惑星観測を実施する。

  7. MAVEN探査衛星データを用いた火星大気上下結合の研究

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    火星探査衛星MAVENに搭載されている紫外分光器IUVSによって得られた観測データを用いて、火星の過去の気候変動に密接に関係するCO2の流出機構を解明する。

  8. 火星探査衛星MAVENを用いた火星大気上下結合の解明

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    MAVENデータ解析システムを用いて、今後も見据えた惑星tplot形式データ解析システムの活用について検討する。

  9. 赤外レーザヘテロダイン分光器の開発・本装置による金星観測

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    2010年8月7日から22日までの約2週間、アメリカ・アリゾナ州Kitt Peak National Observatoryにて、ケルン大学開発の赤外レーザーヘテロダイン分光器を用いて、金星火星中間圏風速場観測を実施した。また、東北大学観測施設へ の実装を目指し、新たに惑星観測用赤外線ヘテロダイン分光システムの開発・構築を進めた。

  10. 高分散分光システム広帯域化のための基礎技術開発

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    中間赤外域のレーザーヘテロダイン分光技術による高分散分光に実績があり、かつ観測拠点が既にあることから、これまで開発してきた超高分散分光装置を広帯域化する技術を獲得することで、火星メタン等を解明するための重要な鍵となる手段を確立することを目的とする。具体的にはGratingを含めたCavity形成による波長可変範囲増大を図る。

  11. 異常太陽風の太陽圏構造への影響の解明

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    近年報告されている異常太陽風構造の顕著な変化が周辺 星間物質の密度分布さらには太陽圏大規模構造に与える影響について解明する。

  12. 地上サブミリ波大型望遠鏡を用いた火星大気酸化微量成分の観測

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    チリ・大型サブミリ波望遠鏡APEXを用いて、CH4等の 変動原因の解明につながる「光化学酸化の指標H2O2」の検 出・季節変化の有無の解明を目指した観測を実施した。また、情報 通信研究機構で開発された放射伝達計算コードAMATERASUを用 いた解析手法の確立を進めた。

  13. 地上サブミリ波大型望遠鏡を用いた火星本体起源微量成分の観測

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    チリ・ASTEサブミリ波望遠鏡を用いて火星本体起源の微量成分SO2を観測し、火星現況の火山・熱水活動に制限を与えた。

  14. 量子カスケードレーザによる惑星大気探査用赤外高分散分光システムの基礎開発

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    量子カスケードレーザを用いた小型分光システムの設計確立を目的とし、本レーザの駆動方法 確立および発振安定度の評価を行った。その基礎の上で、本システムの技術基礎を確立した。

  15. 衛星観測による太陽風・星間物質相互作用の研究

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    NOZOMI星間水素・ヘリウム散乱光の同時観測により周辺星間物質と太陽圏の大規模相互作用の解明の研究を行い、新たな星間水素2流体モデルを提案した。

  16. 衛星観測による太陽風3次元構造の研究

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    NOZOMI/SOHO衛星観測により、星間水素散乱光全天分布の太陽活動11年周期に伴う変動の研究を行うと共に、観測結果と数値計算により、星間水素散乱光分布を用いた太陽風密度3次元大規模構造の遠隔観測方法を確立し、太陽極域における太陽風密度構造を捉えた。

  17. のぞみ衛星による太陽系内星間水素散乱光観測

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    火星探査衛星NOZOMI搭載紫外撮像分光装置(UVS)の 運用及び衛星観測と数値実験を用いた太陽圏内における太陽風・星 間物質相互作用の研究を行った。

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