Details of the Researcher

PHOTO

Makoto Hattori
Section
Graduate School of Science
Job title
Associate Professor
Degree
  • 理学博士(北海道大学)

  • 理学修士(北海道大学)

Research History 5

  • 2007/04 - Present
    Tohoku University

  • 2003/04 - 2007/03
    東北大学大学院理学研究科 助教授

  • 1996/03 - 2003/03
    東北大学大学院理学研究科 助手

  • 1994/01 - 1996/02
    独国 マックス・プランク研究所 博士研究員

  • 1990/04 - 1993/03
    理化学研究所 基礎科学研究員

Education 1

  • Hokkaido University

    1984/04 - 1989/09

Committee Memberships 2

  • 日本学術振興会 特別研究員等審査会専門委員及び国際事業委員会書面審査員・書面評価員

    2016/08 - 2018/04

  • 日本学術振興会 日本学術振興会, 特別研究員等審査会専門委員及び国際事業委員会書面審査員・書面評価員

    2014/08 - 2015/07

Professional Memberships 2

  • 日本天文学会

  • The Physics Society of Japan

Research Interests 31

  • 超伝導ミリ波検出器

  • 宇宙マイクロ波背景放射

  • 銀河団

  • フーリエ分光器

  • 観測的宇宙論

  • ミリ波サブミリ波天文学

  • ボロメータ

  • 重力レンズ

  • ミリ波サブミリ波直接検出器

  • スニキエフッゼルドビッチ効果

  • ミリ波TH_z波

  • イメージング

  • 電波天文学

  • テラヘルツ

  • ミリ波サブミリ波計測

  • 天体干渉計

  • 宇宙論

  • 星間物質

  • 光学天文学

  • 超伝導検出器

  • 画像解析

  • 開口合成

  • テラヘルツ観測・通信技術

  • 数値シミュレーション

  • 銀河団プラズマ物理

  • X線天文学

  • X線天文観測

  • フーリエ分光

  • テラヘルツイメージング

  • アーク統計

  • ハッブルパラメーター

Research Areas 3

  • Natural sciences / Particle, nuclear, cosmic-ray, and astrophysics - experiment /

  • Natural sciences / Astronomy /

  • Natural sciences / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics /

Awards 2

  1. 総長教育賞

    2022/03 東北大学 10年間の”もし天”継続開催によるアウトリーチ活動への貢献

  2. 研究奨励賞

    1996/04 山田財団 ダークレンズ探査

Papers 107

  1. Pointing Calibration of GroundBIRD Telescope Using Moon Observation Data

    Y Sueno, J J A Baselmans, A H M Coppens, R T Génova-Santos, M Hattori, S Honda, K Karatsu, H Kutsuma, K Lee, T Nagasaki, S Oguri, C Otani, M Peel, J Suzuki, O Tajima, T Tanaka, M Tsujii, D J Thoen, E Won

    Progress of Theoretical and Experimental Physics 2024 (2) 2024/01/22

    Publisher: Oxford University Press (OUP)

    DOI: 10.1093/ptep/ptae011  

    eISSN: 2050-3911

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    Abstract Understanding telescope pointing (i.e. line of sight) is important for observing the cosmic microwave background (CMB) and astronomical objects. The Moon is a candidate astronomical source for pointing calibration. Although the visible size of the Moon (30′) is larger than that of the planets, we can frequently observe the Moon once a month with a high signal-to-noise ratio. We developed a method for performing pointing calibration using observational data from the Moon. We considered the tilts of the telescope axes as well as the encoder and collimation offsets for pointing calibration. In addition, we evaluated the effects of the nonuniformity of the brightness temperature of the Moon, which is a dominant systematic error. As a result, we successfully achieved a pointing accuracy of 3.3′. This is one order of magnitude smaller than an angular resolution of 36′. This level of accuracy competes with past achievements in other ground-based CMB experiments using observational data from the planets.

  2. Tensor-to-scalar ratio forecasts for extended LiteBIRD frequency configurations

    U. Fuskeland, J. Aumont, R. Aurlien, C. Baccigalupi, A. J. Banday, H. K. Eriksen, J. Errard, R. T. Génova-Santos, T. Hasebe, J. Hubmayr, H. Imada, N. Krachmalnicoff, L. Lamagna, G. Pisano, D. Poletti, M. Remazeilles, K. L. Thompson, L. Vacher, I. K. Wehus, S. Azzoni, M. Ballardini, R. B. Barreiro, N. Bartolo, A. Basyrov, D. Beck, M. Bersanelli, M. Bortolami, M. Brilenkov, E. Calabrese, A. Carones, F. J. Casas, K. Cheung, J. Chluba, S. E. Clark, L. Clermont, F. Columbro, A. Coppolecchia, G. D’Alessandro, P. de Bernardis, T. de Haan, E. de la Hoz, M. De Petris, S. Della Torre, P. Diego-Palazuelos, F. Finelli, C. Franceschet, G. Galloni, M. Galloway, M. Gerbino, M. Gervasi, T. Ghigna, S. Giardiello, E. Gjerløw, A. Gruppuso, P. Hargrave, M. Hattori, M. Hazumi, L. T. Hergt, D. Herman, D. Herranz, E. Hivon, T. D. Hoang, K. Kohri, M. Lattanzi, A. T. Lee, C. Leloup, F. Levrier, A. I. Lonappan, G. Luzzi, B. Maffei, E. Martínez-González, S. Masi, S. Matarrese, T. Matsumura, M. Migliaccio, L. Montier, G. Morgante, B. Mot, L. Mousset, R. Nagata, T. Namikawa, F. Nati, P. Natoli, S. Nerval, A. Novelli, L. Pagano, A. Paiella, D. Paoletti, G. Pascual-Cisneros, G. Patanchon, V. Pelgrims, F. Piacentini, G. Piccirilli, G. Polenta, G. Puglisi, N. Raffuzzi, A. Ritacco, J. A. Rubino-Martin, G. Savini, D. Scott, Y. Sekimoto, M. Shiraishi, G. Signorelli, S. L. Stever, N. Stutzer, R. M. Sullivan, H. Takakura, L. Terenzi, H. Thommesen, M. Tristram, M. Tsuji, P. Vielva, J. Weller, B. Westbrook, G. Weymann-Despres, E. J. Wollack, M. Zannoni

    Astronomy & Astrophysics 676 A42-A42 2023/08/04

    Publisher: EDP Sciences

    DOI: 10.1051/0004-6361/202346155  

    ISSN: 0004-6361

    eISSN: 1432-0746

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    LiteBIRD is a planned JAXA-led cosmic microwave background (CMB) B-mode satellite experiment aiming for launch in the late 2020s, with a primary goal of detecting the imprint of primordial inflationary gravitational waves. Its current baseline focal-plane configuration includes 15 frequency bands between 40 and 402 GHz, fulfilling the mission requirements to detect the amplitude of gravitational waves with the total uncertainty on the tensor-to-scalar ratio, δr, down to δr < 0.001. A key aspect of this performance is accurate astrophysical component separation, and the ability to remove polarized thermal dust emission is particularly important. In this paper we note that the CMB frequency spectrum falls off nearly exponentially above 300 GHz relative to the thermal dust spectral energy distribution, and a relatively minor high frequency extension can therefore result in even lower uncertainties and better model reconstructions. Specifically, we compared the baseline design with five extended configurations, while varying the underlying dust modeling, in each of which the High-Frequency Telescope (HFT) frequency range was shifted logarithmically toward higher frequencies, with an upper cutoff ranging between 400 and 600 GHz. In each case, we measured the tensor-to-scalar ratio r uncertainty and bias using both parametric and minimum-variance component-separation algorithms. When the thermal dust sky model includes a spatially varying spectral index and temperature, we find that the statistical uncertainty on r after foreground cleaning may be reduced by as much as 30–50% by extending the upper limit of the frequency range from 400 to 600 GHz, with most of the improvement already gained at 500 GHz. We also note that a broader frequency range leads to higher residuals when fitting an incorrect dust model, but also it is easier to discriminate between models through higher χ2 sensitivity. Even in the case in which the fitting procedure does not correspond to the underlying dust model in the sky, and when the highest frequency data cannot be modeled with sufficient fidelity and must be excluded from the analysis, the uncertainty on r increases by only about 5% for a 500 GHz configuration compared to the baseline.

  3. Simulation of the optical system in the GroundBIRD telescope

    Yonggil Jo, Jihoon Choi, Makoto Hattori, Shunsuke Honda, Tomonaga Tanaka, Miku Tsuji, Eunil Won, Kyungmin Lee

    Applied Optics 62 (20) 5369-5369 2023/07/03

    Publisher: Optica Publishing Group

    DOI: 10.1364/ao.488636  

    ISSN: 1559-128X

    eISSN: 2155-3165

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    GroundBIRD is a ground-based telescope for measuring the polarization of cosmic microwave background radiation, and it is soon to be operational at the Teide Observatory. The GroundBIRD telescope employs Mizuguchi–Dragone dual reflectors and 161 kinetic inductance detectors coupled with single polarization antennas as photon detectors. We present the results of our optical simulation on the pointing direction, stray light response, and influence of the blackbody radiation from the baffle. We also find that the power of the baffle radiation incident on the detectors is reduced by 99.95% when corrugated feed horns are coupled to the detectors.

  4. Mitigating Cosmic Microwave Background Shadow Degradation of Tensor-to-scalar Ratio Measurements through Map-based Studies

    Tamaki Murokoshi, Yuji Chinone, Masashi Nashimoto, Kiyotomo Ichiki, Makoto Hattori

    The Astrophysical Journal Letters 949 (2) L29-L29 2023/06/01

    Publisher: American Astronomical Society

    DOI: 10.3847/2041-8213/acd37d  

    ISSN: 2041-8205

    eISSN: 2041-8213

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    Abstract It has been pointed out that the spurious cosmic microwave background (CMB) B-mode polarization signals caused by the absorption of the CMB monopole component due to the Galactic interstellar matter, called the CMB shadow, degrade the accuracy of detecting the CMB B-mode polarization signals imprinted by primordial gravitational waves. We have made a realistic estimation using simulated sky maps of how the CMB shadow affects forthcoming high-precision CMB B-mode experiments for the first time. The delta-map method, an internal template method taking into account the first-order spatial variation of foregrounds’ spectral parameters, is applied as a foreground-removal method. We show that if the CMB shadow effects are not taken into account in the foreground-removal process, future observations would lead to the false detection of the CMB B-mode polarization signals originating from primordial gravitational waves. We also show that the effect of the CMB shadow can be mitigated by our revised delta-map method to target the CMB B-mode polarization signals at the level of tensor-to-scalar ratio r = 0.001.

  5. Sensitivity Modeling for LiteBIRD

    T. Hasebe, P. A. R. Ade, A. Adler, E. Allys, D. Alonso, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, S. Azzoni, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, N. Bartolo, S. Basak, E. Battistelli, L. Bautista, J. Beall, D. Beck, S. Beckman, K. Benabed, J. Bermejo-Ballesteros, M. Bersanelli, J. Bonis, J. Borrill, F. Bouchet, F. Boulanger, S. Bounissou, M. Brilenkov, M. L. Brown, M. Bucher, E. Calabrese, M. Calvo, P. Campeti, A. Carones, F. J. Casas, A. Catalano, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. Cliche, F. Columbro, W. Coulton, J. Cubas, A. Cukierman, D. Curtis, G. D’Alessandro, K. Dachlythra, P. de Bernardis, T. de Haan, E. de la Hoz, M. De Petris, S. Della Torre, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, D. Douillet, L. Duband, A. Ducout, S. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, S. Galli, M. Galloway, K. Ganga, J. R. Gao, R. T. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, S. Giardiello, E. Gjerløw, M. L. Gradziel, J. Grain, L. Grandsire, F. Grupp, A. Gruppuso, J. E. Gudmundsson, N. W. Halverson, J. Hamilton, P. Hargrave, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versillé, L. T. Hergt, D. Herman, D. Herranz, C. A. Hill, G. Hilton, E. Hivon, R. A. Hlozek, T. D. Hoang, A. L. Hornsby, Y. Hoshino, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, M. Jones, T. Kaga, S. Kashima, N. Katayama, A. Kato, T. Kawasaki, R. Keskitalo, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, I. Kreykenbohm, C. L. Kuo, A. Kushino, L. Lamagna, J. V. Lanen, G. Laquaniello, M. Lattanzi, A. T. Lee, C. Leloup, F. Levrier, E. Linder, T. Louis, G. Luzzi, J. Macias-Perez, T. Maciaszek, B. Maffei, D. Maino, M. Maki, S. Mandelli, M. Maris, E. Martínez-González, S. Masi, M. Massa, S. Matarrese, F. T. Matsuda, T. Matsumura, L. Mele, A. Mennella, M. Migliaccio, Y. Minami, K. Mitsuda, A. Moggi, A. Monfardini, J. Montgomery, L. Montier, G. Morgante, B. Mot, Y. Murata, J. A. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, R. Nakano, T. Namikawa, F. Nati, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, F. Noviello, C. O’Sullivan, K. Odagiri, H. Ogawa, H. Ogawa, S. Oguri, H. Ohsaki, I. S. Ohta, N. Okada, N. Okada, L. Pagano, A. Paiella, D. Paoletti, A. Passerini, G. Patanchon, V. Pelgrim, J. Peloton, F. Piacentini, M. Piat, G. Pisano, G. Polenta, D. Poletti, T. Prouvé, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, M. Remazeilles, A. Ritacco, G. Roudil, J. Rubino-Martin, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, G. Savini, D. Scott, J. Seibert, Y. Sekimoto, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, F. Spinella, S. Stever, R. Stompor, S. Sugiyama, R. Sullivan, A. Suzuki, J. Suzuki, T. L. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, D. Tavagnacco, A. Taylor, E. Taylor, Y. Terao, J. Thermeau, H. Thommesen, K. L. Thompson, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, J. Ullom, L. Vacher, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, B. Wandelt, W. Wang, K. Watanuki, I. K. Wehus, J. Weller, B. Westbrook, J. Wilms, B. Winter, E. J. Wollack, N. Y. Yamasaki, T. Yoshida, J. Yumoto, A. Zacchei, M. Zannoni, A. Zonca

    Journal of Low Temperature Physics 211 (5-6) 384-397 2022/12/02

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s10909-022-02921-7  

    ISSN: 0022-2291

    eISSN: 1573-7357

  6. Optical Characterization of OMT-Coupled TES Bolometers for LiteBIRD

    J. Hubmayr, P. A. R. Ade, A. Adler, E. Allys, D. Alonso, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. E. Austermann, S. Azzoni, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, N. Bartolo, S. Basak, E. Battistelli, L. Bautista, J. A. Beall, D. Beck, S. Beckman, K. Benabed, J. Bermejo-Ballesteros, M. Bersanelli, J. Bonis, J. Borrill, F. Bouchet, F. Boulanger, S. Bounissou, M. Brilenkov, M. L. Brown, M. Bucher, E. Calabrese, M. Calvo, P. Campeti, A. Carones, F. J. Casas, A. Catalano, A. Challinor, V. Chan, K. Cheung, Y. Chinone, C. Chiocchetta, S. E. Clark, L. Clermont, S. Clesse, J. Cliche, F. Columbro, J. A. Connors, A. Coppolecchia, W. Coulton, J. Cubas, A. Cukierman, D. Curtis, F. Cuttaia, G. D’Alessandro, K. Dachlythra, P. de Bernardis, T. de Haan, E. de la Hoz, M. De Petris, S. Della Torre, J. J. Daz Garca, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, D. Douillet, E. Doumayrou, L. Duband, A. Ducout, S. M. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. K. Eriksen, J. Errard, T. Essinger-Hileman, S. Farrens, F. Finelli, R. Flauger, K. Fleury-Frenette, C. Franceschet, U. Fuskeland, L. Galli, S. Galli, M. Galloway, K. Ganga, J. R. Gao, R. T. Genova-Santos, M. Georges, M. Gerbino, M. Gervasi, T. Ghigna, S. Giardiello, E. Gjerlw, R. Gonzlez Gonzles, M. L. Gradziel, J. Grain, L. Grandsire, F. Grupp, A. Gruppuso, J. E. Gudmundsson, N. W. Halverson, J. Hamilton, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versill, B. Hensley, D. Herman, D. Herranz, G. C. Hilton, E. Hivon, R. A. Hlozek, D. Hoang, A. L. Hornsby, Y. Hoshino, K. Ichiki, T. Iida, T. Ikemoto, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, M. Jones, T. Kaga, S. Kashima, N. Katayama, A. Kato, T. Kawasaki, R. Keskitalo, C. Kintziger, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, I. Kreykenbohm, C. L. Kuo, A. Kushino, L. Lamagna, J. V. Lanen, G. Laquaniello, M. Lattanzi, A. T. Lee, C. Leloup, F. Levrier, E. Linder, M. J. Link, A. I. Lonappan, T. Louis, G. Luzzi, J. Macias-Perez, T. Maciaszek, B. Maffei, D. Maino, M. Maki, S. Mandelli, M. Maris, B. Marquet, E. Martnez-Gonzlez, F. A. Martire, S. Masi, M. Massa, M. Masuzawa, S. Matarrese, F. T. Matsuda, T. Matsumura, L. Mele, A. Mennella, M. Migliaccio, Y. Minami, K. Mitsuda, A. Moggi, M. Monelli, A. Monfardini, J. Montgomery, L. Montier, G. Morgante, B. Mot, Y. Murata, J. A. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, R. Nakano, T. Namikawa, F. Nati, P. Natoli, S. Nerval, N. Neto Godry Farias, T. Nishibori, H. Nishino, F. Noviello, G. C. O’Neil, C. O’Sullivan, K. Odagiri, H. Ochi, H. Ogawa, H. Ogawa, S. Oguri, H. Ohsaki, I. S. Ohta, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Pascual Cisneros, A. Passerini, G. Patanchon, V. Pelgrim, J. Peloton, V. Pettorino, F. Piacentini, M. Piat, G. Piccirilli, F. Pinsard, G. Pisano, J. Plesseria, G. Polenta, D. Poletti, T. Prouv, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, C. D. Reintsema, M. Remazeilles, A. Ritacco, P. Rosier, G. Roudil, J. Rubino-Martin, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, G. Savini, D. Scott, J. Seibert, Y. Sekimoto, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, A. Shitvov, G. Signorelli, G. Smecher, F. Spinella, J. Starck, S. Stever, R. Stompor, R. Sudiwala, S. Sugiyama, R. Sullivan, A. Suzuki, J. Suzuki, T. Suzuki, T. L. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, D. Tavagnacco, A. Taylor, E. Taylor, Y. Terao, L. Terenzi, J. Thermeau, H. Thommesen, K. L. Thompson, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, R. Ueki, J. N. Ullom, K. Umemori, L. Vacher, J. Van Lanen, G. Vermeulen, P. Vielva, F. Villa, M. R. Vissers, N. Vittorio, B. Wandelt, W. Wang, I. K. Wehus, J. Weller, B. Westbrook, G. Weymann-Despres, J. Wilms, B. Winter, E. J. Wollack, N. Y. Yamasaki, T. Yoshida, J. Yumoto, K. Watanuki, A. Zacchei, M. Zannoni, A. Zonca

    Journal of Low Temperature Physics 209 (3-4) 396-408 2022/09/05

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s10909-022-02808-7  

    ISSN: 0022-2291

    eISSN: 1573-7357

  7. Material survey for a millimeter-wave absorber using a 3D-printed mold

    T. Otsuka, S. Adachi, M. Hattori, Y. Sakurai, O. Tajima

    Applied Optics 60 (25) 7678-7678 2021/08/27

    Publisher: Optica Publishing Group

    DOI: 10.1364/ao.433254  

    ISSN: 1559-128X

    eISSN: 2155-3165

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    Radio absorptive materials (RAMs) are key elements for receivers in the millimeter-wave range. We previously established a method for production of RAM by using a 3D-printed mold. An advantage of this method is a wide range of choices for absorptive materials to be used. To take advantage of this flexibility, we added a range of absorptive materials to a base epoxy resin, STYCAST-2850FT, and examined the optical performance of the resultant RAM across a wide frequency range under cryogenic conditions. We found that adding a particular type of carbon fiber produced the best performance with a reflectance at 77 K estimated as 0.01%–3% over a frequency range of 20–300 GHz.

  8. The Simons Observatory: metamaterial microwave absorber and its cryogenic applications

    Zhilei Xu, Grace E. Chesmore, Shunsuke Adachi, Aamir M. Ali, Andrew Bazarko, Gabriele Coppi, Mark Devlin, Tom Devlin, Simon R. Dicker, Patricio A. Gallardo, Joseph E. Golec, Jon E. Gudmundsson, Kathleen Harrington, Makoto Hattori, Anna Kofman, Kenji Kiuchi, Akito Kusaka, Michele Limon, Frederick Matsuda, Jeff McMahon, Federico Nati, Michael D. Niemack, Aritoki Suzuki, Grant P. Teply, Robert J. Thornton, Edward J. Wollack, Mario Zannoni, Ningfeng Zhu

    Applied Optics 60 (4) 864-864 2021/01/26

    Publisher: Optica Publishing Group

    DOI: 10.1364/ao.411711  

    ISSN: 1559-128X

    eISSN: 2155-3165

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    Controlling stray light at millimeter wavelengths requires special optical design and selection of absorptive materials that should be compatible with cryogenic operating environments. While a wide selection of absorptive materials exists, these typically exhibit high indices of refraction and reflect/scatter a significant fraction of light before absorption. For many lower index materials such as commercial microwave absorbers, their applications in cryogenic environments are challenging. In this paper, we present a new tool to control stray light: metamaterial microwave absorber tiles. These tiles comprise an outer metamaterial layer that approximates a lossy gradient index anti-reflection coating. They are fabricated via injection molding commercially available carbon-loaded polyurethane (25% by mass). The injection molding technology enables mass production at low cost. The design of these tiles is presented, along with thermal tests to 1 K. Room temperature optical measurements verify their control of reflectance to less than 1% up to angles of incidence, and control of wide angle scattering below 0.01%. The dielectric properties of the bulk carbon-loaded material used in the tiles is also measured at different temperatures, confirming that the material maintains similar dielectric properties down to 3 K.

  9. A method to measure superconducting transition temperature of microwave kinetic inductance detector by changing power of readout microwaves

    H. Kutsuma, Y. Sueno, M. Hattori, S. Mima, S. Oguri, C. Otani, J. Suzuki, O. Tajima

    AIP Advances 10 (9) 2020/09/01

    Publisher: AIP Publishing

    DOI: 10.1063/5.0013946  

    eISSN: 2158-3226

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    A microwave kinetic inductance detector (MKID) is a cutting-edge superconducting detector, and its principle is based on a superconducting resonator circuit. The superconducting transition temperature (Tc) of the MKID is an important parameter because various MKID characterization parameters depend on it. In this paper, we propose a method to measure the Tc of the MKID by changing the applied power of the readout microwaves. A small fraction of the readout power is deposited on the MKID, and the number of quasiparticles in the MKID increases with this power. Furthermore, the quasiparticle lifetime decreases with the number of quasiparticles. Therefore, we can measure the relation between the quasiparticle lifetime and the detector response by rapidly varying the readout power. From this relation, we evaluate the intrinsic quasiparticle lifetime. This lifetime is theoretically modeled by Tc, the physical temperature of the MKID device, and other known parameters. We obtain Tc by comparing the measured lifetime with that acquired using the theoretical model. Using an MKID fabricated with aluminum, we demonstrate this method at a 0.3 K operation. The results are consistent with those obtained by Tc measured by monitoring the transmittance of the readout microwaves with the variation in the device temperature. The method proposed in this paper is applicable to other types, such as a hybrid-type MKID.

  10. GroundBIRD: A CMB Polarization Experiment with MKID Arrays

    K. Lee, J. Choi, R. T. Génova-Santos, M. Hattori, M. Hazumi, S. Honda, T. Ikemitsu, H. Ishida, H. Ishitsuka, Y. Jo, K. Karatsu, K. Kiuchi, J. Komine, R. Koyano, H. Kutsuma, S. Mima, M. Minowa, J. Moon, M. Nagai, T. Nagasaki, M. Naruse, S. Oguri, C. Otani, M. Peel, R. Rebolo, J. A. Rubiño-Martín, Y. Sekimoto, J. Suzuki, T. Taino, O. Tajima, N. Tomita, T. Uchida, E. Won, M. Yoshida

    Journal of Low Temperature Physics 200 (5-6) 384-391 2020/09/01

    DOI: 10.1007/s10909-020-02511-5  

    ISSN: 0022-2291

    eISSN: 1573-7357

  11. CMB Shadows: The Effect of Interstellar Extinction on Cosmic Microwave Background Polarization and Temperature Anisotropy

    Nashimoto, Masashi, Hattori, Makoto, Chinone, Yuji

    The Astrophysical Journal 2020/05

    DOI: 10.3847/2041-8213/ab9018  

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    We evaluate the degradation of the accuracy of the component separation between the cosmic microwave background (CMB) and foreground components caused by neglect of absorption of the CMB's monopole component by the galactic interstellar matter. The amplitude of the temperature anisotropy caused by the CMB shadow, due to dust components, is about 1 μK. This value is comparable to the required noise level necessary to probe non-Gaussianity studies with upcoming CMB experiments. In addition, the amplitude of the polarization caused by the CMB shadow due to dust is comparable to or larger than the rms value of the CMB B-mode polarization, imprinted by primordial gravitational waves. We show that applying a single-power-law model as the dust spectrum to observed multifrequency data introduces systematic errors, which are comparable to or larger than the required noise level for forthcoming CMB B-mode polarization experiments. Deducing the intrinsic spectrum of dust emission from the submillimeter wave band data reduces the systematic error to below the required noise level. However, this method requires dust temperature measurements with an accuracy of better than a few percent. We conclude that the CMB shadow due to dust must be considered in future CMB missions for achieving their targeted sensitivity. Our results will be important to detect the primordial CMB B-mode polarization, with the amplitude of the tensor-to-scalar ratio of r = 10-3....

  12. Production method of millimeter-wave absorber with 3D-printed mold

    S. Adachi, M. Hattori, F. Kanno, K. Kiuchi, T. Okada, O. Tajima

    Review of Scientific Instruments 91 (1) 2020/01/01

    Publisher: AIP Publishing

    DOI: 10.1063/1.5132871  

    ISSN: 0034-6748

    eISSN: 1089-7623

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    We established a production method of a millimeter-wave absorber by using a 3D-printed mold. The mold has a periodic pyramid shape, and an absorptive material is filled into the mold. This shape reduces the surface reflection. The 3D-printed mold is made from a transparent material in the millimeter-wave range. Therefore, unmolding is not necessary. A significant benefit of this production method is easy prototyping with various shapes and various absorptive materials. We produced a test model and used a two-component epoxy encapsulant as the absorptive material. The test model achieved a low reflectance: ∼1% at 100 GHz. The absorber is sometimes maintained at a low temperature condition for cases in which superconducting detectors are used. Therefore, cryogenic performance is required in terms of a mechanical strength for the thermal cycles, an adhesive strength, and a sufficient thermal conductivity. We confirmed the test-model strength by immersing the model into a liquid-nitrogen bath.

  13. On-site performance of GroundBIRD, a CMB polarization telescope for large angular scale observations

    Shunsuke Honda, Jihoon Choi, Ricardo Tanausu Génova-Santos, Makoto Hattori, Masashi Hazumi, Takuji Ikemitsu, Hidesato Ishida, Hikaru Ishitsuka, Yonggil Jo, Kenichi Karatsu, Kenji Kiuchi, Junta Komine, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Satoru Mima, Makoto Minowa, Joonhyeok Moon, Makoto Nagai, Takeo Nagasaki, Masato Naruse, Shugo Oguri, Chiko Otani, Michael Peel, Rafael Rebolo-López, José Alberto Rubiño-Martín, Yutaro Sekimoto, Yoshinori Sueno, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Yuta Tsuji, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

    Proceedings of SPIE - The International Society for Optical Engineering 11445 2020

    DOI: 10.1117/12.2560918  

    ISSN: 0277-786X

    eISSN: 1996-756X

  14. LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization

    M. Hazumi, P. A.R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. J. Banday, R. Banjeri, R. B. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, P. De Bernardis, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. J. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. F. Cliche, L. Colombo, F. Columbro, J. Cubas, A. Cukierman, D. Curtis, G. D'alessandro, N. Dachlythra, M. De Petris, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, L. Duband, S. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. R. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. L. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. E. Gudmundsson, T. De Haan, N. W. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, S. Henrot-Versillé, D. Herman, D. Herranz, C. A. Hill, G. Hilton, Y. Hirota, E. Hivon, R. A. Hlozek, Y. Hoshino, E. De La Hoz, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, T. Kaga, S. Kashima, N. Katayama, A. Kato

    Proceedings of SPIE - The International Society for Optical Engineering 11443 2020

    DOI: 10.1117/12.2563050  

    ISSN: 0277-786X

    eISSN: 1996-756X

  15. Concept design of low frequency telescope for CMB B-mode polarization satellite LiteBIRD

    Y. Sekimoto, P. A.R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, P. De Bernardis, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. J. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. F. Cliche, L. Colombo, F. Columbro, J. Cubas, A. Cukierman, D. Curtis, G. D'Alessandro, N. Dachlythra, M. De Petris, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, L. Duband, S. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. R. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. L. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. E. Gudmundsson, T. De Haan, N. W. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versille, D. Herman, D. Herranz, C. A. Hill, G. Hilton, Y. Hirota, E. Hivon, R. A. Hlozek, Y. Hoshino, E. De La Hoz, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, T. Kaga, S. Kashima, N. Katayama

    Proceedings of SPIE - The International Society for Optical Engineering 11453 2020

    DOI: 10.1117/12.2561841  

    ISSN: 0277-786X

    eISSN: 1996-756X

  16. Overview of the medium and high frequency telescopes of the LiteBIRD space mission

    L. Montier, B. Mot, P. De Bernardis, B. Maffei, G. Pisano, F. Columbro, J. E. Gudmundsson, S. Henrot-Versillé, L. Lamagna, J. Montgomery, T. Prouvé, M. Russell, G. Savini, S. Stever, K. L. Thompson, M. Tsujimoto, C. Tucker, B. Westbrook, P. A.R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. J. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. F. Cliche, L. Colombo, J. Cubas, A. Cukierman, D. Curtis, G. D'alessandro, N. Dachlythra, M. De Petris, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, L. Duband, S. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. R. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. L. Gradziel, J. Grain, F. Grupp, A. Gruppuso, T. De Haan, N. W. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, D. Herman, D. Herranz, C. A. Hill, G. Hilton, Y. Hirota, E. Hivon

    Proceedings of SPIE - The International Society for Optical Engineering 11443 2020

    DOI: 10.1117/12.2562243  

    ISSN: 0277-786X

    eISSN: 1996-756X

  17. A measurement method for responsivity of microwave kinetic inductance detector by changing power of readout microwaves Peer-reviewed

    H. Kutsuma, M. Hattori, R. Koyano, S. Mima, S. Oguri, C. Otani, T. Taino, O. Tajima

    Applied Physics Letters 115 (3) 032603-032603 2019/07/15

    Publisher: {AIP} Publishing

    DOI: 10.1063/1.5110692  

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    Superconducting detectors are a modern technology applied in various fields. The microwave kinetic inductance detector (MKID) is one of cutting-edge superconducting detector. It is based on the principle of a superconducting resonator circuit. A radiation entering the MKID breaks the Cooper pairs in the superconducting resonator, and the intensity of the radiation is detected as a variation of the resonant condition. Therefore, calibration of the detector responsivity, i.e., the variation of the resonant phase with respect to the number of Cooper-pair breaks (quasiparticles), is important. We propose a method for responsivity calibration. Microwaves used for the detector readout locally raise the temperature in each resonator, which increases the number of quasiparticles. Since the magnitude of the temperature rise depends on the power of readout microwaves, the number of quasiparticles also depends on the power of microwaves. By changing the power of the readout microwaves, we simultaneously measure the phase difference and lifetime of quasiparticles. We calculate the number of quasiparticles from the measured lifetime and by using a theoretical formula. This measurement yields a relation between the phase response as a function of the number of quasiparticles. We demonstrate this responsivity calibration using the MKID maintained at 285mK. We also confirm consistency between the results obtained using this method and conventional calibration methods in terms of the accuracy.

  18. LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection Peer-reviewed

    M. Hazumi, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, S. Cho, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, S. Kashima, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto

    Journal of Low Temperature Physics 194 (5-6) 443-452 2019/03/15

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s10909-019-02150-5  

    ISSN: 0022-2291

    eISSN: 1573-7357

  19. The Simons Observatory: science goals and forecasts

    Peter Ade, James Aguirre, Zeeshan Ahmed, Simone Aiola, Aamir Ali, David Alonso, Marcelo A. Alvarez, Kam Arnold, Peter Ashton, Jason Austermann, Humna Awan, Carlo Baccigalupi, Taylor Baildon, Darcy Barron, Nick Battaglia, Richard Battye, Eric Baxter, Andrew Bazarko, James A. Beall, Rachel Bean, Dominic Beck, Shawn Beckman, Benjamin Beringue, Federico Bianchini, Steven Boada, David Boettger, J. Richard Bond, Julian Borrill, Michael L. Brown, Sarah Marie Bruno, Sean Bryan, Erminia Calabrese, Victoria Calafut, Paolo Calisse, Julien Carron, Anthony Challinor, Grace Chesmore, Yuji Chinone, Jens Chluba, Hsiao-Mei Sherry Cho, Steve Choi, Gabriele Coppi, Nicholas F. Cothard, Kevin Coughlin, Devin Crichton, Kevin D. Crowley, Kevin T. Crowley, Ari Cukierman, John M. D'Ewart, Rolando Dünner, Tijmen de Haan, Mark Devlin, Simon Dicker, Joy Didier, Matt Dobbs, Bradley Dober, Cody J. Duell, Shannon Duff, Adri Duivenvoorden, Jo Dunkley, John Dusatko, Josquin Errard, Giulio Fabbian, Stephen Feeney, Simone Ferraro, Pedro Fluxà, Katherine Freese, Josef C. Frisch, Andrei Frolov, George Fuller, Brittany Fuzia, Nicholas Galitzki, Patricio A. Gallardo, Jose Tomas Galvez Ghersi, Jiansong Gao, Eric Gawiser, Martina Gerbino, Vera Gluscevic, Neil Goeckner-Wald, Joseph Golec, Sam Gordon, Megan Gralla, Daniel Green, Arpi Grigorian, John Groh, Chris Groppi, Yilun Guan, Jon E. Gudmundsson, Dongwon Han, Peter Hargrave, Masaya Hasegawa, Matthew Hasselfield, Makoto Hattori, Victor Haynes, Masashi Hazumi, Yizhou He, Erin Healy, Shawn W. Henderson, Carlos Hervias-Caimapo, Charles A. Hill, J. Colin Hill, Gene Hilton, Matt Hilton, Adam D. Hincks, Gary Hinshaw, Renée Hložek, Shirley Ho, Shuay-Pwu Patty Ho, Logan Howe, Zhiqi Huang, Johannes Hubmayr, Kevin Huffenberger, John P. Hughes, Anna Ijjas, Margaret Ikape, Kent Irwin, Andrew H. Jaffe, Bhuvnesh Jain, Oliver Jeong, Daisuke Kaneko, Ethan D. Karpel, Nobuhiko Katayama, Brian Keating, Sarah S. Kernasovskiy, Reijo Keskitalo, Theodore Kisner, Kenji Kiuchi, Jeff Klein, Kenda Knowles, Brian Koopman, Arthur Kosowsky, Nicoletta Krachmalnicoff, Stephen E. Kuenstner, Chao-Lin Kuo, Akito Kusaka, Jacob Lashner, Adrian Lee, Eunseong Lee, David Leon, Jason S.-Y. Leung, Antony Lewis, Yaqiong Li, Zack Li, Michele Limon, Eric Linder, Carlos Lopez-Caraballo, Thibaut Louis, Lindsay Lowry, Marius Lungu, Mathew Madhavacheril, Daisy Mak, Felipe Maldonado, Hamdi Mani, Ben Mates, Frederick Matsuda, Loïc Maurin, Phil Mauskopf, Andrew May, Nialh McCallum, Chris McKenney, Jeff McMahon, P. Daniel Meerburg, Joel Meyers, Amber Miller, Mark Mirmelstein, Kavilan Moodley, Moritz Munchmeyer, Charles Munson, Sigurd Naess, Federico Nati, Martin Navaroli, Laura Newburgh, Ho Nam Nguyen, Michael Niemack, Haruki Nishino, John Orlowski-Scherer, Lyman Page, Bruce Partridge, Julien Peloton, Francesca Perrotta, Lucio Piccirillo, Giampaolo Pisano, Davide Poletti, Roberto Puddu, Giuseppe Puglisi, Chris Raum, Christian L. Reichardt, Mathieu Remazeilles, Yoel Rephaeli, Dominik Riechers, Felipe Rojas, Anirban Roy, Sharon Sadeh, Yuki Sakurai, Maria Salatino, Mayuri Sathyanarayana Rao, Emmanuel Schaan, Marcel Schmittfull, Neelima Sehgal, Joseph Seibert, Uros Seljak, Blake Sherwin, Meir Shimon, Carlos Sierra, Jonathan Sievers, Precious Sikhosana, Maximiliano Silva-Feaver, Sara M. Simon, Adrian Sinclair, Praween Siritanasak, Kendrick Smith, Stephen R. Smith, David Spergel, Suzanne T. Staggs, George Stein, Jason R. Stevens, Radek Stompor, Aritoki Suzuki, Osamu Tajima, Satoru Takakura, Grant Teply, Daniel B. Thomas, Ben Thorne, Robert Thornton, Hy Trac, Calvin Tsai, Carole Tucker, Joel Ullom, Sunny Vagnozzi, Alexander van Engelen, Jeff Van Lanen, Daniel D. Van Winkle, Eve M. Vavagiakis, Clara Vergès, Michael Vissers, Kasey Wagoner, Samantha Walker, Jon Ward, Ben Westbrook, Nathan Whitehorn, Jason Williams, Joel Williams, Edward J. Wollack, Zhilei Xu, Byeonghee Yu, Cyndia Yu, Fernando Zago, Hezi Zhang, Ningfeng Zhu

    Journal of Cosmology and Astroparticle Physics 2019 (02) 056-056 2019/02/01

    Publisher: IOP Publishing

    DOI: 10.1088/1475-7516/2019/02/056  

    eISSN: 1475-7516

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    The Simons Observatory (SO) is a new cosmic microwave background experiment being built on Cerro Toco in Chile, due to begin observations in the early 2020s. We describe the scientific goals of the experiment, motivate the design, and forecast its performance. SO will measure the temperature and polarization anisotropy of the cosmic microwave background in six frequency bands centered at: 27, 39, 93, 145, 225 and 280 GHz. The initial configuration of SO will have three small-aperture 0.5-m telescopes and one large-aperture 6-m telescope, with a total of 60,000 cryogenic bolometers. Our key science goals are to characterize the primordial perturbations, measure the number of relativistic species and the mass of neutrinos, test for deviations from a cosmological constant, improve our understanding of galaxy evolution, and constrain the duration of reionization. The small aperture telescopes will target the largest angular scales observable from Chile, mapping ≈ 10% of the sky to a white noise level of 2 μK-arcmin in combined 93 and 145 GHz bands, to measure the primordial tensor-to-scalar ratio,r, at a target level of σ(r)=0.003. The large aperture telescope will map ≈ 40% of the sky at arcminute angular resolution to an expected white noise level of 6 μK-arcmin in combined 93 and 145 GHz bands, overlapping with the majority of the Large Synoptic Survey Telescope sky region and partially with the Dark Energy Spectroscopic Instrument. With up to an order of magnitude lower polarization noise than maps from thePlancksatellite, the high-resolution sky maps will constrain cosmological parameters derived from the damping tail, gravitational lensing of the microwave background, the primordial bispectrum, and the thermal and kinematic Sunyaev-Zel'dovich effects, and will aid in delensing the large-angle polarization signal to measure the tensor-to-scalar ratio. The survey will also provide a legacy catalog of 16,000 galaxy clusters and more than 20,000 extragalactic sources.

  20. GroundBIRD: Observation of CMB Polarization with a Rapid Scanning and MKIDs

    T. Nagasaki, J. Choi, R. T. Génova-Santos, M. Hattori, M. Hazumi, H. Ishitsuka, K. Karatsu, K. Kikuchi, R. Koyano, H. Kutsuma, K. Lee, S. Mima, M. Minowa, M. Nagai, M. Naruse, S. Oguri, C. Otani, R. Rebolo, J. A. Rubiño-Martín, Y. Sekimoto, M. Semoto, J. Suzuki, T. Taino, O. Tajima, N. Tomita, T. Uchida, E. Won, M. Yoshida

    Journal of Low Temperature Physics 193 (5-6) 1066-1074 2018/12/01

    DOI: 10.1007/s10909-018-2077-y  

    ISSN: 0022-2291

    eISSN: 1573-7357

  21. Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD

    T. Hasebe, S. Kashima, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, H. M. Cho, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, M. Hazumi, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto

    Journal of Low Temperature Physics 193 (5-6) 841-850 2018/12/01

    DOI: 10.1007/s10909-018-1915-2  

    ISSN: 0022-2291

    eISSN: 1573-7357

  22. Optimization of Geomagnetic Shielding for MKIDs Mounted on a Rotating Cryostat

    Hiroki Kutsuma, Makoto Hattori, Kenji Kiuchi, Satoru Mima, Taketo Nagasaki, Shugo Oguri, Junya Suzuki, Osamu Tajima

    Journal of Low Temperature Physics 193 (3-4) 203-208 2018/11/01

    Publisher: Springer New York LLC

    DOI: 10.1007/s10909-018-2036-7  

    ISSN: 1573-7357 0022-2291

  23. The LiteBIRD Satellite Mission: Sub-Kelvin Instrument

    A. Suzuki, P. A. R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, S. Cho, B. Crill, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, M. Hazumi, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, S. Kashima, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Patanchon, G. Pisano, G. Rebeiz, M. Remazeilles, P. L. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, M. Sawada, Y. Segawa, Y. Sekimoto, U. Seljak, B. D. Sherwin, T. Shimizu, K. Shinozaki, R. Stompor, H. Sugai, H. Sugita, J. Suzuki, O. Tajima, S. Takada, R. Takaku, S. Takakura, S. Takatori, D. Tanabe, E. Taylor, K. L. Thompson, B. Thorne, T. Tomaru, T. Tomida, N. Tomita, M. Tristram, C. Tucker, P. Turin, M. Tsujimoto, S. Uozumi, S. Utsunomiya, Y. Uzawa, F. Vansyngel, I. K. Wehus, B. Westbrook, M. Willer, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, M. Yoshida

    Journal of Low Temperature Physics 193 (5-6) 1048-1056 2018/05/10

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s10909-018-1947-7  

    ISSN: 0022-2291

    eISSN: 1573-7357

  24. A Study of the Galactic Dusts for the Improvement of the CMB Components Separation

    Nashimoto, Masashi, Hattori, Makoto, Shimonishi, Takashi, Ootsubo, Takafumi, Yamamoto, Tetsuo, Doi, Yasuo

    The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life. 301-304 2018/03

  25. Status of the GroundBIRD Telescope

    J. Choi, R. Génova-Santos, M. Hattori, M. Hazumi, H. Ishitsuka, F. Kanno, K. Karatsu, K. Kiuchi, R. Koyano, H. Kutsuma, K. Lee, S. Mima, M. Minowa, M. Nagai, T. Nagasaki, M. Naruse, S. Oguri, T. Okada, C. Otani, R. Rebolo, J. Rubiño-Martín, Y. Sekimoto, J. Suzuki, T. Taino, O. Tajima, N. Tomita, T. Uchida, E. Won, M. Yoshida

    EPJ Web of Conferences 168 01014-01013 2018/01/09

    Publisher: EDP Sciences

    DOI: 10.1051/epjconf/201816801014  

    ISSN: 2100-014X 2101-6275

    eISSN: 2100-014X

  26. Concept design of the LiteBIRD satellite for CMB B-mode polarization

    Y. Sekimoto, P. Ade, K. Arnold, J. Aumont, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, S. Basak, S. Beckman, M. Bersanelli, J. Borrill, F. Boulanger, M. L. Brown, M. Bucher, E. Calabrese, F. J. Casas, A. Challinor, Y. Chinone, F. Columbro, A. Cukierman, D. Curtis, P. De Bernardis, M. De Petris, M. Dobbs, T. Dotani, L. Duband, J. M. Duval, A. Ducout, K. Ebisawa, T. Elleot, H. Eriksen, J. Errard, R. Flauger, C. Franceschet, U. Fuskeland, K. Ganga, R. J. Gao, T. Ghigna, J. Grain, A. Gruppuso, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versille, C. Hill, Y. Hirota, E. Hivon, T. D. Hoang, J. Hubmayr, K. Ichiki, H. Imada, H. Ishino, G. Jaehnig, H. Kanai, S. Kashima, Y. Kataoka, N. Katayama, T. Kawasaki, R. Keskitalo, A. Kibayashi, T. Kikuchi, K. Kimura, T. Kisner, Y. Kobayashi, N. Kogiso, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, L. C. Kuo, N. Kurinsky, A. Kushino, L. Lamagna, T. A. Lee, E. Linder, B. Maffei, M. Maki, A. Mangilli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, Y. Minami, K. Mistuda, D. Molinari, L. Montier, G. Morgante, B. Mot, Y. Murata, A. Murphy, M. Nagai, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli

    Proceedings of SPIE - The International Society for Optical Engineering 10698 2018

    DOI: 10.1117/12.2313432  

    ISSN: 0277-786X

    eISSN: 1996-756X

  27. Advantages of the Akari FIR Al-Sky Maps

    Doi,Y, Takita,S, Ootsubo,T, Arimatsu,K, Tanaka,M, Morishima,T, Kawada,M, Matsuura,S, Kitamura,Y, Hattori,M, Nakagawa,T, White,G, Ikeda,N

    The Korean Astronomical Society 32 11-15 2017/03

  28. Small-Scale Structure of the Zodiacal Dust Cloud Observed in Far-Infrared with Akari

    Ootsubo,T, Doi,Y, Taakita,S, Matsuura,S, Kawada,M, Nakagawa,T, Arimatsu,K, Tanaka,M, Kondo,T, Ishihara,D, Usui,F, Hattori,M

    Publications of The Korean Astronomical Society 32 63-65 2017/03

  29. CMB polarization experiment "groundBIRD"

    C. Otani, O. Tajima, S. Oguri, S. Mima, J. Choi, T. Damayanthi, N. Furukawa, M. Hattori, M. Hazumi, H. Ishitsuka, R. Koyano, M. Minowa, M. Nagai, T. Nagasaki, Y. Sekimoto, M. Semoto, T. Taino, N. Tomita, T. Uchida, E. Won, M. Yoshida

    27th International Symposium on Space Terahertz Technology, ISSTT 2016 2017

  30. LiteBIRD: Mission Overview and Focal Plane Layout Peer-reviewed

    T. Matsumura, Y. Akiba, K. Arnold, J. Borrill, R. Chendra, Y. Chinone, A. Cukierman, T. de Haan, M. Dobbs, A. Dominjon, T. Elleflot, J. Errard, T. Fujino, H. Fuke, N. Goeckner-wald, N. Halverson, P. Harvey, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, C. Hill, G. Hilton, W. Holzapfel, Y. Hori, J. Hubmayr, K. Ichiki, J. Inatani, M. Inoue, Y. Inoue, F. Irie, K. Irwin, H. Ishino, H. Ishitsuka, O. Jeong, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, B. Keating, A. Kibayashi, Y. Kibe, Y. Kida, K. Kimura, N. Kimura, K. Kohri, E. Komatsu, C. L. Kuo, S. Kuromiya, A. Kusaka, A. Lee, E. Linder, H. Matsuhara, S. Matsuoka, S. Matsuura, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, K. Natsume, T. Nishibori, K. Nishijo, H. Nishino, T. Nitta, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. S. Ohta, C. Otani, N. Okada, A. Okamoto, A. Okamoto, T. Okamura, G. Rebeiz, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Segawa, S. Sekiguchi, Y. Sekimoto, M. Sekine, U. Seljak, B. Sherwin, K. Shinozaki, S. Shu, R. Stompor, H. Sugai, H. Sugita, T. Suzuki, A. Suzuki

    Journal of Low Temperature Physics 184 (3-4) 824-831 2016/08/01

    DOI: 10.1007/s10909-016-1542-8  

    ISSN: 0022-2291

    eISSN: 1573-7357

  31. GroundBIRD: Observing Cosmic Microwave Polarization at Large Angular Scale with Kinetic Inductance Detectors and High-Speed Rotating Telescope Peer-reviewed

    S. Oguri, J. Choi, T. Damayanthi, M. Hattori, M. Hazumi, H. Ishitsuka, K. Karatsu, S. Mima, M. Minowa, T. Nagasaki, C. Otani, Y. Sekimoto, O. Tajima, N. Tomita, M. Yoshida, E. Won

    JOURNAL OF LOW TEMPERATURE PHYSICS 184 (3-4) 786-792 2016/08

    DOI: 10.1007/s10909-015-1420-9  

    ISSN: 0022-2291

    eISSN: 1573-7357

  32. LiteBIRD: lite satellite for the study of B-mode polarization and inflation from cosmic microwave background radiation detection

    H. Ishino, Y. Akiba, K. Arnold, D. Barron, J. Borrill, R. Chendra, Y. Chinone, S. Cho, A. Cukierman, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, T. Elleflot, J. Errard, T. Fujino, H. Fuke, T. Funaki, N. Goeckner-Wald, N. Halverson, P. Harvey, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, N. Hidehira, C. Hill, G. Hilton, W. Holzapfel, Y. Hori, J. Hubmayr, K. Ichiki, H. Imada, J. Inatani, M. Inoue, Y. Inoue, F. Irie, K. Irwin, H. Ishitsuka, O. Jeong, H. Kanai, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, T. Kawasaki, B. Keating, S. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, N. Kimura, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C.-L. Kuo, S. Kuromiya, A. Kusaka, A. Lee, D. Li, E. Linder, M. Maki, H. Matsuhara, T. Matsumura, S. Matsuoka, S. Matsuura, S. Mima, Y. Minami, K. Mitsuda, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, W. Ogburn, S. Oguri, I. Ohta, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Pisano, G. Rebeiz, P. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, Y. Segawa, S. Sekiguchi, Y. Sekimoto, M. Sekine, U. Seljak, B. Sherwin, T. Shimizu, K. Shinozaki, S. Shu, R. Stompor, H. Sugai, H. Sugita, J. Suzuki, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, K. Takano, S. Takatori, Y. Takei, D. Tanabe, T. Tomaru, N. Tomita, P. Turin, S. Uozumi, S. Utsunomiya, Y. Uzawa, T. Wada, H. Watanabe, B. Westbrook, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, T. Yoshida, M. Yoshida, K. Yotsumoto

    SPIE Proceedings 2016/07/29

    Publisher: SPIE

    DOI: 10.1117/12.2231995  

    ISSN: 0277-786X

  33. Theory of the jitter radiation in a magnetized plasma accompanying a temperature gradient Peer-reviewed

    Makoto Hattori, Kazushiro Fujiki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 68 (2) 28-1-28-14 2016/04

    DOI: 10.1093/pasj/psw014  

    ISSN: 0004-6264

    eISSN: 2053-051X

  34. GroundBIRD: Observations of CMB polarization with fast scan modulation and MKIDs

    Shugo Oguri, Jihoon Choi, Thushara Damayanthi, Makoto Hattori, Masashi Hazumi, Hikaru Ishitsuka, Kenji Kiuchi, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Satoru Mima, Makoto Minowa, Makoto Nagai, Taketo Nagasaki, Chiko Otani, Yutaro Sekimoto, Munehisa Semoto, Jun'ya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Eunil Won, Tomohisa Uchida, Mitsuhiro Yoshida

    Proceedings of SPIE - The International Society for Optical Engineering 9906 2016

    DOI: 10.1117/12.2231672  

    ISSN: 0277-786X

    eISSN: 1996-756X

  35. The AKARI far-infrared all-sky survey maps Peer-reviewed

    Yasuo Doi, Satoshi Takita, Takafumi Ootsubo, Ko Arimatsu, Masahiro Tanaka, Yoshimi Kitamura, Mitsunobu Kawada, Shuji Matsuura, Takao Nakagawa, Takahiro Morishima, Makoto Hattori, Shinya Komugi, Glenn J. White, Norio Ikeda, Daisuke Kato, Yuji Chinone, Mireya Etxaluze, Elysandra F. Cypriano

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 67 (3) 50-1-50-22 2015/06

    DOI: 10.1093/pasj/psv022  

    ISSN: 0004-6264

    eISSN: 2053-051X

  36. Mission Design of LiteBIRD Peer-reviewed

    T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone, M. Dobbs, H. Fuke, A. Ghribi, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, W. Holzapfel, Y. Inoue, K. Ishidoshiro, H. Ishino, H. Ishitsuka, K. Karatsu, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, K. Kimura, N. Kimura, K. Koga, M. Kozu, E. Komatsu, A. Lee, H. Matsuhara, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, S. Murayama, M. Nagai, R. Nagata, S. Nakamura, M. Naruse, K. Natsume, T. Nishibori, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. Ohta, C. Otani, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Sekimoto, A. Shimizu, K. Shinozaki, H. Sugita, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, Y. Takei, T. Tomaru, Y. Uzawa, T. Wada, H. Watanabe, M. Yoshida, N. Yamasaki, T. Yoshida, K. Yotsumoto

    JOURNAL OF LOW TEMPERATURE PHYSICS 176 (5-6) 733-740 2014/09

    DOI: 10.1007/s10909-013-0996-1  

    ISSN: 0022-2291

    eISSN: 1573-7357

  37. LiteBIRD: Mission overview and design tradeoffs

    T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone, M. Dobbs, H. Fuke, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, J. Inatani, M. Inoue, Y. Inoue, K. Ishidoshiro, H. Ishino, H. Ishitsuka, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, K. Kimura, N. Kimura, E. Komatsu, M. Kozu, K. Koga, A. Lee, H. Matsuhara, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, M. Nagai, R. Nagata, S. Nakamura, M. Naruse, T. Namikawa, K. Natsume, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. S. Ohta, N. Okada, C. Otani, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Segawa, Y. Sekimoto, K. Shinozaki, H. Sugita, A. Suzuki, T. Suzuki, O. Tajima, S. Takada, S. Takakura, Y. Takei, T. Tomaru, Y. Uzawa, T. Wada, H. Watanabe, Y. Yamada, H. Yamaguchi, N. Yamasaki, M. Yoshida, T. Yoshida, K. Yotsumoto

    Proceedings of SPIE - The International Society for Optical Engineering 9143 2014

    DOI: 10.1117/12.2055794  

    ISSN: 0277-786X

    eISSN: 1996-756X

  38. THE FILAMENTARY WEB OF STAR FORMATION Peer-reviewed

    Glenn J. White, Yasuo Doi, Shinya Komugi, Mitsunobu Kawada, Satoshi Takita, Ko Arimatsu, Norio Ikeda, Daisuke Kato, Yoshimi Kitamura, Takao Nakagawa, Takafumi Ootsubo, Takahiro Morishima, Makoto Hattori, Masahiro Tanaka, Mireya Etxaluze, Hiroshi Shibai

    Publications of The Korean Astronomical Society 27 (4) 201-207 2012/09/16

    Publisher: The Korean Astronomical Society

    DOI: 10.5303/pkas.2012.27.4.201  

    ISSN: 1225-1534

  39. AKARI FAR-INFRARED ALL-SKY SURVEY MAPS Peer-reviewed

    Yasuo Doi, Shinya Komugi, Mitsunobu Kawada, Satoshi Takita, Ko Arimatsu, Norio Ikeda, Daisuke Kato, Yoshimi Kitamura, Takao Nakagawa, Takafumi Ootsubo, Takahiro Morishima, Makoto Hattori, Masahiro Tanaka, Glenn J. White, Mireya Etxaluze, Hiroshi Shibai

    Publications of The Korean Astronomical Society 27 (4) 111-116 2012/09/16

    Publisher: The Korean Astronomical Society

    DOI: 10.5303/pkas.2012.27.4.111  

    ISSN: 1225-1534

  40. LiteBIRD: A small satellite for the studies of B-mode polarization and ination from cosmic background radiation detection Peer-reviewed

    M. Hazumi, J. Borrill, Y. Chinone, M. A. Dobbs, H. Fuke, A. Ghribi, M. Hasegawa, K. Hattori, M. Hattori, W. L. Holzapfel, Y. Inoue, K. Ishidoshiro, H. Ishino, K. Karatsu, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, N. Kimura, K. Koga, E. Komatsu, A. T. Lee, H. Matsuhara, T. Matsumura, S. Mima, K. Mitsuda, H. Morii, S. Murayama, M. Nagai, R. Nagata, S. Nakamura, K. Natsume, H. Nishino, A. Noda, T. Noguchi, I. Ohta, C. Otani, P. L. Richards, S. Sakai, N. Sato, Y. Sato, Y. Sekimoto, A. Shimizu, K. Shinozaki, H. Sugita, A. Suzuki, T. Suzuki, O. Tajima, S. Takada, Y. Takagi, Y. Takei, T. Tomaru, Y. Uzawa, H. Watanabe, N. Yamasaki, M. Yoshida, T. Yoshida, K. Yotsumoto

    Proceedings of SPIE - The International Society for Optical Engineering 8442 2012

    DOI: 10.1117/12.926743  

    ISSN: 0277-786X

  41. A NEW CONCEPT FOR DIRECT IMAGING AND SPECTRAL CHARACTERIZATION OF EXOPLANETS IN MULTI-PLANET SYSTEMS Peer-reviewed

    Taro Matsuo, Wesley A. Traub, Makoto Hattori, Motohide Tamura

    ASTROPHYSICAL JOURNAL 729 (1) 50-1-50-10 2011/03

    DOI: 10.1088/0004-637X/729/1/50  

    ISSN: 0004-637X

    eISSN: 1538-4357

  42. The AKARI Far-Infrared Surveyor (FIS): all-sky Diffuse Map

    Shinya Komugi, Yasuo Doi, Makoto Hattori, Yoshimi Kitamura, Takafumi Otsubo, Masahiro Tanaka, Norio Ikeda, Daisuke Kato, Takao Nakagawa

    TRACING THE ANCESTRY OF GALAXIES (ON THE LAND OF OUR ANCESTORS) (277) 1-4 2011

    DOI: 10.1017/S1743921311022332  

    ISSN: 1743-9213

  43. Method to measure a relative transverse velocity of a source-lens-observer system using gravitational lensing of gravitational waves Peer-reviewed

    Yousuke Itoh, Toshifumi Futamase, Makoto Hattori

    PHYSICAL REVIEW D 80 (4) 044009 2009/08

    DOI: 10.1103/PhysRevD.80.044009  

    ISSN: 1550-7998

  44. A Web of Complexity: The AKARI Diffuse Galactic Plane Survey

    Mireya Etxaluze, Yasuo Doi, Do Kester, Glenn J. White, Elysandra Figueredo, Yuji Chinone, Makoto Hattori, Takao Nakagawa, Chisato Yamauchi, Hiroshi Shibai

    AKARI, A LIGHT TO ILLUMINATE THE MISTY UNIVERSE 418 91-+ 2009

  45. Suzaku broad-band spectroscopy of RX J1347.5-1145: constraints on the extremely hot gas and non-thermal emission Peer-reviewed

    N. Ota, K. Murase, T. Kitayama, E. Komatsu, M. Hattori, H. Matsuo, T. Oshima, Y. Suto, K. Yoshikawa

    ASTRONOMY & ASTROPHYSICS 491 (2) 363-377 2008/11

    DOI: 10.1051/0004-6361:200810122  

    ISSN: 1432-0746

  46. Novel spectral Imaging method for Fizeau interferometers Peer-reviewed

    Taro Matsuo, Hiroshi Shibai, Mitsunobu Kawada, Makoto Hattori, Izumi S. Ohta, Hiroshi Matsuo

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 60 (2) 303-314 2008/04

    DOI: 10.1093/pasj/60.2.303  

    ISSN: 0004-6264

    eISSN: 2053-051X

  47. Application of Michelson type bolometric interferomter to CMB B mode polarization observations Peer-reviewed

    Makoto Hattori, Izumi S. Ohta, Yuji Chinone, Yuan Luo, K. Koga

    ACCELERATORS IN THE UNIVERSE 1040 89-96 2008

    ISSN: 0094-243X

  48. Application of Michelson type bolometric interferomter to CMB B mode polarization observations Peer-reviewed

    Makoto Hattori, Izumi S. Ohta, Yuji Chinone, Yuan Luo, Kensuke Koga

    OPTICAL AND INFRARED INTERFEROMETRY 7013 2008

    DOI: 10.1117/12.789136  

    ISSN: 0277-786X

  49. Realization of multiplying type interferometer with 2-elements 0.3K bolometer detectores Peer-reviewed

    Yuan Luo, Makoto Hattori, Izumi S. Ohta, Yuji Chinonel, Junichi Takahashi, Yoshihiro Hamaji, Hiroshi Matsuo, Nario Kuno

    2008 Global Symposium on Millimeter Waves, Proceeding, GSMM 2008 2008

    DOI: 10.1109/GSMM.2008.4534601  

  50. Development of a multi-Fourier-transform interferometer: imaging experiments in millimeter and submillimeter wave bands Peer-reviewed

    Izumi S. Ohta, Makoto Hattori, Hiroshi Matsuo

    APPLIED OPTICS 46 (15) 2881-2892 2007/05

    DOI: 10.1364/AO.46.002881  

    ISSN: 1559-128X

    eISSN: 2155-3165

  51. Astronomical testing observation in Multi-Fourier transform interferometer: Aperture synthesis technique and CMB Peer-reviewed

    Izumi S. Ohta, Makoto Hattori, Yuji Chinone, Yuan Luo, Yoshihiro Hamaji, Junichi Takahashi, Hiroshi Matsuo, Nario Kuno

    2007 JOINT 32ND INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 15TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS, VOLS 1 AND 2 329-+ 2007

  52. Development of a multi-Fourier-transform interferometer: fundamentals Peer-reviewed

    IS Ohta, M Hattori, H Matsuo

    APPLIED OPTICS 45 (12) 2576-2585 2006/04

    DOI: 10.1364/AO.45.002576  

    ISSN: 1559-128X

    eISSN: 2155-3165

  53. Astronomical mm and sub-mm observations with multi-fourier transform interferometer in 2005 and 2006 Peer-reviewed

    Izumi S. Ohta, Makoto Hattori, Jyun'ichi Takahashi, Yuji Chinone, Yuan Luo, Hiroshi Matsuo

    Proceedings of SPIE - The International Society for Optical Engineering 6275 2006

    DOI: 10.1117/12.671095  

    ISSN: 0277-786X

  54. A direct method for measuring heat conductivity in intracluster medium Peer-reviewed

    M Hattori, N Okabe

    ASTROPHYSICAL JOURNAL 625 (2) 741-747 2005/06

    DOI: 10.1086/429576  

    ISSN: 0004-637X

  55. Exploring cluster physics with high-resolution Sunyaev-Zel'dovich effect images and X-ray data: The case of the most X-ray-luminous galaxy cluster RX J1347-1145 Peer-reviewed

    T Kitayama, E Komatsu, N Ota, T Kuwabara, Y Suto, K Yoshikawa, M Hattori, H Matsuo

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 56 (1) 17-28 2004/02

    DOI: 10.1093/pasj/56.1.17  

    ISSN: 0004-6264

    eISSN: 2053-051X

  56. Exploring cluster physics with high-resolution Sunyaev-Zel'dovich effect images and X-ray data: The case of the most X-ray-luminous galaxy cluster RX J1347-1145 Peer-reviewed

    T Kitayama, E Komatsu, N Ota, T Kuwabara, Y Suto, K Yoshikawa, M Hattori, H Matsuo

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 56 (1) 17-28 2004/02

    DOI: 10.1093/pasj/56.1.17  

    ISSN: 0004-6264

    eISSN: 2053-051X

  57. A Gradient-T SZE Peer-reviewed

    Hattori,M, OkabeN

    Journal of the Korean Astronomical Society 37 543-546 2004

  58. Generation of magnetic-field by temperature gradients Peer-reviewed

    Okabe,N, Hattori,M

    Journal of the Korean Astronomical Society 37 547-551 2004

  59. Chandra analysis and mass estimation of the lensing cluster of galaxies Cl 0024+17 Peer-reviewed

    N Ota, E Pointecouteau, M Hattori, K Mitsuda

    ASTROPHYSICAL JOURNAL 601 (1) 120-132 2004/01

    DOI: 10.1086/380438  

    ISSN: 0004-637X

  60. Development of super broadband interferometer in FIR

    IS Ohta, M Hattori, H Matsuo

    OPTICAL, INFRARED, AND MILLIMETER SPACE TELESCOPES, PTS 1-3 5487 1563-1571 2004

    DOI: 10.1117/12.551465  

    ISSN: 0277-786X

  61. Spontaneous generation of the magnetic field and suppression of the heat conduction in cold fronts Peer-reviewed

    N Okabe, M Hattori

    ASTROPHYSICAL JOURNAL 599 (2) 964-970 2003/12

    DOI: 10.1086/379309  

    ISSN: 0004-637X

  62. Chandra spectroscopy and mass estimation of the lensing cluster of galaxies CL0024+17 Peer-reviewed

    N Ota, M Hattori, E Pointecouteau, K Mitsuda

    PROCEEDINGS OF THE IAU 8TH ASIAN-PACIFIC REGIONAL MEETING, VOL I 289 465-468 2003

  63. The gravitational scattering of the cosmic microwave background by dark clusters of galaxies Peer-reviewed

    O Aso, M Hattori, T Futamase

    ASTROPHYSICAL JOURNAL 576 (1) L5-L7 2002/09

    DOI: 10.1086/342979  

    ISSN: 0004-637X

  64. SZ and X-ray combined analysis of a distant galaxy cluster, RX J2228+2037 Peer-reviewed

    E Pointecouteau, M Hattori, D Neumann, E Komatsu, H Matsuo, N Kuno, H Bohringer

    ASTRONOMY & ASTROPHYSICS 387 (1) 56-62 2002/05

    DOI: 10.1051/0004-6361:20020394  

    ISSN: 0004-6361

  65. A metal enriched dark cluster of galaxies at Z=1 - Dark lens searches Invited

    M Hattori

    COSMIC CHEMICAL EVOLUTION 187 (187) 129-138 2002

    ISSN: 0074-1809

  66. Detection of an iron emission feature from the lensed broad absorption line QSO H1413+117 at z=2.56 Peer-reviewed

    T Oshima, K Mitsuda, R Fujimoto, N Iyomoto, K Futamoto, M Hattori, N Ota, K Mori, Y Ikebe, JM Miralles, JP Kneib

    ASTROPHYSICAL JOURNAL 563 (2) L103-L106 2001/12

    DOI: 10.1086/338653  

    ISSN: 0004-637X

  67. Radial Arc statistics: A powerful new probe of the central density profile of galaxy clusters Peer-reviewed

    K Molikawa, M Hattori

    ASTROPHYSICAL JOURNAL 559 (2) 544-551 2001/10

    DOI: 10.1086/322366  

    ISSN: 0004-637X

  68. ASCA observation of the lensed blazar PKS 1830-211: An implication of X-ray microlensing Peer-reviewed

    T Oshima, K Mitsuda, N Ota, A Yonehara, M Hattori, T Mihara, Y Sekimoto

    ASTROPHYSICAL JOURNAL 551 (2) 929-933 2001/04

    DOI: 10.1086/320246  

    ISSN: 0004-637X

    eISSN: 1538-4357

  69. Spectroscopic confirmation of a cluster of galaxies at z=1 in the field of the gravitational lens MG 2016+112 Peer-reviewed

    G Soucail, JP Kneib, AO Jaunsen, J Hjorth, M Hattori, T Yamada

    ASTRONOMY & ASTROPHYSICS 367 (3) 741-747 2001/03

    DOI: 10.1051/0004-6361:20000498  

    ISSN: 0004-6361

  70. Substructures revealed by the Sunyaev-Zel'dovich effect at 150 GHz in a high-resolution map of RX J1347-1145 Peer-reviewed

    E Komatsu, H Matsuo, T Kitayama, M Hattori, R Kawabe, K Kohno, N Kuno, S Schindler, Y Suto, K Yoshikawa

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 53 (1) 57-62 2001/02

    DOI: 10.1093/pasj/53.1.57  

    ISSN: 0004-6264

    eISSN: 2053-051X

  71. Emission-line properties of MG 2016+112: A luminous obscured quasar at high redshift Peer-reviewed

    T Yamada, S Yamazaki, M Hattori, G Soucail, JP Kneib

    ASTRONOMY & ASTROPHYSICS 367 (1) 51-58 2001/02

    DOI: 10.1051/0004-6361:20000418  

    ISSN: 0004-6361

  72. Substructures revealed by the Sunyaev-Zel'dovich effect at 150 GHz in a high-resolution map of RX J1347-1145 Peer-reviewed

    E Komatsu, H Matsuo, T Kitayama, M Hattori, R Kawabe, K Kohno, N Kuno, S Schindler, Y Suto, K Yoshikawa

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 53 (1) 57-62 2001/02

    DOI: 10.1093/pasj/53.1.57  

    ISSN: 0004-6264

    eISSN: 2053-051X

  73. Probing distant universe X-ray sources with gravitational lensing

    T Oshima, K Mitsuda, N Ota, K Futamoto, M Hattori, A Yonehara, Y Sekimoto, T Mihara, Y Ikebe, JP Kneib, JM Miralles

    NEW CENTURY OF X-RAY ASTRONOMY 251 476-477 2001

  74. The application of Mp-FTS to aperture synthesis Peer-reviewed

    M.Hattori, I.S.Ohta, H.Matsuo, Y.Shibata

    The Institute of Space and Astronautical Science Report SP 14 353-360 2000/12

    Publisher: Japan Aerospace Exploration Agency

    ISSN: 0288-433X

    More details Close

    The application of the Martin-Puplett type Fourier transform spectrometer to aperture synthesis is considered. The configuration of the mirrors and beam splitters and the fundamental mathematical elements of the system are summarized. We show that the system canmeasure spectrally resolved spatial distribution of the Stokes parameters of sources as interferedsignals. An original Martin-Puplett type Fourier transform spectrometer that can be applied toaperture synthesis in mm and sub-mm wave bands has been constructed. The preliminary resultsof our laboratory experiments are reported.

  75. A possible route to spontaneous reduction of the heat conductivity by a temperature gradient-driven instability in electron-ion plasmas Peer-reviewed

    M Hattori, K Umetsu

    ASTROPHYSICAL JOURNAL 533 (1) 84-94 2000/04

    ISSN: 0004-637X

    eISSN: 1538-4357

  76. X-ray observations and mass determinations in the cluster of galaxies C10024+17 Peer-reviewed

    G Soucail, N Ota, H Bohringer, O Czoske, M Hattori, Y Mellier

    ASTRONOMY & ASTROPHYSICS 355 (2) 433-442 2000/03

    ISSN: 0004-6361

  77. Gas, iron, and gravitational mass in galaxy clusters: The general lack of cluster evolution at z < 1.0 Peer-reviewed

    H Matsumoto, TG Tsuru, Y Fukazawa, M Hattori, DS Davis

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 52 (1) 153-160 2000/02

    DOI: 10.1093/pasj/52.1.153  

    ISSN: 0004-6264

    eISSN: 2053-051X

  78. Detection of iron emission lines from the galaxy cluster including the radio galaxy 3C 220.1 at z=0.62 Peer-reviewed

    N Ota, K Mitsuda, M Hattori, T Mihara

    ASTROPHYSICAL JOURNAL 530 (1) 172-176 2000/02

    ISSN: 0004-637X

  79. Cosmological implications of galaxy clusters in X-ray, millimeter, and submillimeter bands

    Y Suto, T Kitayama, E Komatsu, M Hattori, R Kawabe, H Matsuo, S Schindler, K Yoshikawa

    BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES 25 (3-4) 771-780 2000

    ISSN: 0273-1177

  80. The giant luminous arc statistics II. Spherical lens models based on ROSAT HRI data Peer-reviewed

    K Molikawa, M Hattori, JP Kneib, K Yamashita

    ASTRONOMY & ASTROPHYSICS 351 (2) 413-432 1999/11

    ISSN: 0004-6361

  81. Submillimeter detection of the Sunyaev-Zeldovich effect toward the most luminous X-ray cluster at z=0.45 Peer-reviewed

    E Komatsu, T Kitayama, Y Suto, M Hattori, R Kawabe, H Matsuo, S Schindler, K Yoshikawa

    ASTROPHYSICAL JOURNAL 516 (1) L1-L4 1999/05

    ISSN: 0004-637X

    eISSN: 1538-4357

  82. Submillimeter detection of the Sunyaev-Zeldovich effect toward the most luminous X-ray cluster at z=0.45 Peer-reviewed

    E Komatsu, T Kitayama, Y Suto, M Hattori, R Kawabe, H Matsuo, S Schindler, K Yoshikawa

    ASTROPHYSICAL JOURNAL 516 (1) L1-L4 1999/05

    ISSN: 0004-637X

    eISSN: 1538-4357

  83. Gravitational lensing in clusters of galaxies Peer-reviewed

    M Hattori, JP Kneib, N Makino

    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT 133 (133) 1-51 1999

    ISSN: 0375-9687

  84. Gravitational lensing in clusters of galaxies Invited

    M Hattori, JP Kneib, N Makino

    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT 133 (133) 1-51 1999

    ISSN: 0375-9687

  85. Gravitationally lensed yet morphologically regular images in clusters of galaxies as astronomical tools Peer-reviewed

    T Futamase, M Hattori, T Hamana

    ASTROPHYSICAL JOURNAL 508 (1) L47-L49 1998/11

    ISSN: 0004-637X

  86. X-ray observations of the rich cluster CL 0939+4713 and discovery of the strongly variable source RXJ0943.0+4701 Peer-reviewed

    S Schindler, P Belloni, Y Ikebe, M Hattori, J Wambsganss, Y Tanaka

    ASTRONOMY & ASTROPHYSICS 338 (3) 843-855 1998/10

    ISSN: 0004-6361

  87. Discovery of X-ray emission from the distant lensing cluster of galaxies Cl 2236-04 at z=0.552 Peer-reviewed

    M Hattori, H Matuzawa, K Morikawa, JP Kneib, K Yamashita, K Watanabe, H Bohringer, TG Tsuru

    ASTROPHYSICAL JOURNAL 503 (2) 593-598 1998/08

    DOI: 10.1086/306039  

    ISSN: 0004-637X

    eISSN: 1538-4357

  88. An ASCA-ROSAT study of the distant, lensing cluster A 2390 Peer-reviewed

    H Bohringer, Y Tanaka, RF Mushotzky, Y Ikebe, M Hattori

    ASTRONOMY & ASTROPHYSICS 334 (3) 789-798 1998/06

    ISSN: 0004-6361

  89. Lensing effects on the protogalaxy candidate cB58 and their implications for the cosmological constant Peer-reviewed

    T Hamana, M Hattori, H Ebeling, JP Henry, T Futamase, Y Shioya

    ASTROPHYSICAL JOURNAL 484 (2) 574-580 1997/08

    DOI: 10.1086/304378  

    ISSN: 0004-637X

  90. A dark cluster of galaxies at redshift z=1 Peer-reviewed

    M Hattori, Y Ikebe, Asaoka, I, T Takeshima, H Bohringer, T Mihara, DM Neumann, S Schindler, T Tsuru, T Tamura

    NATURE 388 (6638) 146-148 1997/07

    DOI: 10.1038/40572  

    ISSN: 0028-0836

  91. Measurement of mass distribution of galaxy clusters using the giant luminous arc statistics with Le Fevre et al's arc survey data Peer-reviewed

    M Hattori, K Watanabe, K Yamashita

    ASTRONOMY & ASTROPHYSICS 319 (3) 764-780 1997/03

    ISSN: 1432-0746

  92. Measurement of mass distribution of galaxy clusters using the giant luminous arc statistics with Le Fevre et al's arc survey data Peer-reviewed

    M Hattori, K Watanabe, K Yamashita

    ASTRONOMY & ASTROPHYSICS 319 (3) 764-780 1997/03

    ISSN: 1432-0746

  93. ROSAT/HRI and ASCA observations of the most luminous X-ray cluster RX J1347-1145 Peer-reviewed

    S.Schindler, M.Hattori, D.M.Neumann, H.Boehringer

    Astronomy and Astrophysics 317 646-655 1997/02

  94. ROSAT/HRI and ASCA observations of the most luminous X-ray cluster RXJ1347.5-1145 Peer-reviewed

    S Schindler, M Hattori, DM Neumann, H Bohringer

    ASTRONOMY & ASTROPHYSICS 317 (3) 646-655 1997/01

    ISSN: 0004-6361

  95. Lensing effects on the protogalaxy candidate cB58 and their implications for the cosmological constant Peer-reviewed

    T. Hamana, M. Hattori, H. Ebeling, J. P. Henry, T. Futamase, Y. Shioya

    Astrophysical Journal 484 (2) 574-580 1997

    Publisher: Institute of Physics Publishing

    DOI: 10.1086/304378  

    ISSN: 1538-4357 0004-637X

  96. Effect of kick velocity on the distribution of gamma-ray bursters Peer-reviewed

    N Terasawa, M Hattori

    ASTRONOMY & ASTROPHYSICS 313 (1) 197-203 1996/09

    ISSN: 0004-6361

  97. SUBCLUSTER MERGING IN CLUSTERS OF GALAXIES AND THE COSMOLOGICAL DENSITY PARAMETER Peer-reviewed

    FE NAKAMURA, M HATTORI, S MINESHIGE

    ASTRONOMY & ASTROPHYSICS 302 (3) 649-657 1995/10

    ISSN: 0004-6361

    eISSN: 1432-0746

  98. EVOLUTION OF THE GALAXY CLUSTER TEMPERATURE FUNCTION Peer-reviewed

    M HATTORI, H MATSUZAWA

    ASTRONOMY & ASTROPHYSICS 300 (3) 637-642 1995/08

    ISSN: 0004-6361

  99. NONLINEAR STUDY OF MAGNETOTHERMAL INSTABILITY IN COOLING FLOWS Peer-reviewed

    M HATTORI, T YOSHIDA, A HABE

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 275 (4) 1195-1210 1995/08

    ISSN: 0035-8711

  100. IS THE UNIVERSE GRAVITATIONALLY DOMINATED BY NONBARYONIC DARK-MATTER Peer-reviewed

    M HATTORI

    ASTROPHYSICAL JOURNAL 426 (1) 19-22 1994/05

    ISSN: 0004-637X

  101. Is the universe gravitationally dominated by nonbaryonic dark matter? Peer-reviewed

    M.Hattori

    The Astrophysical Journal 426 (1) 19-22 1994/05

  102. Hot plasma in clusters of galaxies (review article in Japanese) Peer-reviewed

    HATTORI Makoto

    Journal of Physical Society of Japan 49 (9) 743-750 1994

  103. METAL ENRICHMENT OF THE INTRACLUSTER MEDIUM FROM PROTOGALAXIES AND THE GAMMA-RAY BURSTERS Peer-reviewed

    M HATTORI, N TERASAWA

    ASTROPHYSICAL JOURNAL 406 (2) L55-L58 1993/04

    ISSN: 0004-637X

  104. Metal enrichment of the intracluster medium and galaxy formation Peer-reviewed

    Hattori,M, Terasawa,N

    The Astrophysical Journal Letters 406 55-58 1993

  105. NUMERICAL STUDY OF THE NONLINEAR STAGE OF THERMAL-INSTABILITY IN COOLING FLOWS .2. THE NONLINEAR PERTURBATION IN THE CASE OF A SPHERICALLY SYMMETRICAL BACKGROUND FLOW Peer-reviewed

    T YOSHIDA, M HATTORI, A HABE

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 248 (4) 630-641 1991/02

    ISSN: 0035-8711

  106. NUMERICAL STUDY OF THE NON-LINEAR STAGE OF THERMAL-INSTABILITY IN COOLING FLOWS Peer-reviewed

    M HATTORI, A HABE

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 242 (3) 399-418 1990/02

    ISSN: 0035-8711

  107. THE FORMATION OF HOT GASEOUS HALOES IN ELLIPTIC GALAXIES WITH MASSIVE DARK HALOES Peer-reviewed

    M HATTORI, A HABE, S IKEUCHI

    PROGRESS OF THEORETICAL PHYSICS 78 (5) 1099-1116 1987/11

    DOI: 10.1143/PTP.78.1099  

    ISSN: 0033-068X

Show all ︎Show first 5

Misc. 16

  1. 高校生対象の天文学者職業体験講座”もし天” Invited

    服部誠

    東北大学理学部物理系同窓会 泉萩会会報 (39) 6-7 2023/06

  2. ミリ波観測による初期宇宙探査 Invited

    服部誠

    東北大学極低温科学センターだより 23 2-5 2022/11

  3. Updated Design of the CMB Polarization Experiment Satellite LiteBIRD

    H. Sugai, P. A. R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, J. Austermann, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, S. Basak, J. Beall, S. Beckman, M. Bersanelli, J. Borrill, F. Boulanger, M. L. Brown, M. Bucher, A. Buzzelli, E. Calabrese, F. J. Casas, A. Challinor, V. Chan, Y. Chinone, J.-F. Cliche, F. Columbro, A. Cukierman, D. Curtis, P. Danto, P. de Bernardis, T. de Haan, M. De Petris, C. Dickinson, M. Dobbs, T. Dotani, L. Duband, A. Ducout, S. Duff, A. Duivenvoorden, J.-M. Duval, K. Ebisawa, T. Elleflot, H. Enokida, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, K. Ganga, J.-R. Gao, R. Génova-Santos, T. Ghigna, A. Gomez, M. L. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. E. Gudmundsson, N. W. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versille, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. Hlozek, D.-T. Hoang, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. C. Jaehnig, M. Jones, T. Kaga, S. Kashima, Y. Kataoka, N. Katayama, T. Kawasaki, R. Keskitalo, A. Kibayashi, T. Kikuchi, K. Kimura, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, C. L. Kuo, N. Kurinsky, A. Kushino, M. Kuwata-Gonokami, L. Lamagna, M. Lattanzi, A. T. Lee, E. Linder, B. Maffei, D. Maino, M. Maki, A. Mangilli, E. Martínez-González, S. Masi, R. Mathon, T. Matsumura, A. Mennella, M. Migliaccio, Y. Minami, K. Mistuda, D. Molinari, L. Montier, G. Morgante, B. Mot, Y. Murata, J. A. Murphy, M. Nagai, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, Y. Nomura, F. Noviello, C. O’Sullivan, H. Ochi, H. Ogawa, H. Ohsaki, I. Ohta, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Patanchon, F. Piacentini, G. Pisano, G. Polenta, D. Poletti, T. Prouvé, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Remazeilles, G. Roudil, J. A. Rubiño-Martín, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, G. Savini, D. Scott, Y. Sekimoto, B. D. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, P. Spizzi, S. L. Stever, R. Stompor, S. Sugiyama, A. Suzuki, J. Suzuki, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takeda, A. Taylor, E. Taylor, Y. Terao, K. L. Thompson, B. Thorne, M. Tomasi, H. Tomida, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, J. Ullom, S. Uozumi, S. Utsunomiya, J. Van Lanen, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, F. Voisin, I. Walker, N. Watanabe, I. Wehus, J. Weller, B. Westbrook, B. Winter, E. Wollack, R. Yamamoto, N. Y. Yamasaki, M. Yanagisawa, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

    Journal of Low Temperature Physics 199 (3-4) 1107-1117 2020/01/27

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s10909-019-02329-w   10.1007/s10909-020-02359-9_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC   10.1103/physrevd.103.063508_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC   10.1364/ao.411533_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC   10.1088/1475-7516/2022/01/039_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC   10.1088/1475-7516/2020/11/030_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC   10.1063/5.0022765_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC   10.1088/1475-7516/2021/09/013_references_DOI_OS16x3GGLM6s9gBunRwsg1ZPmqC  

    ISSN: 0022-2291

    eISSN: 1573-7357

    More details Close

    <jats:title>Abstract</jats:title><jats:p>Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their application on future satellite cosmic microwave background (CMB) polarization experiments. LiteBIRD is in the most advanced phase among such future satellites, targeting its launch in Japanese Fiscal Year 2027 (2027FY) with JAXA’s H3 rocket. It will accommodate more than 4000 TESs in focal planes of reflective low-frequency and refractive medium-and-high-frequency telescopes in order to detect a signature imprinted on the CMB by the primordial gravitational waves predicted in cosmic inflation. The total wide frequency coverage between 34 and 448 GHz enables us to extract such weak spiral polarization patterns through the precise subtraction of our Galaxy’s foreground emission by using spectral differences among CMB and foreground signals. Telescopes are cooled down to 5 K for suppressing thermal noise and contain polarization modulators with transmissive half-wave plates at individual apertures for separating sky polarization signals from artificial polarization and for mitigating from instrumental 1/<jats:italic>f</jats:italic> noise. Passive cooling by using V-grooves supports active cooling with mechanical coolers as well as adiabatic demagnetization refrigerators. Sky observations from the second Sun–Earth Lagrangian point, L2, are planned for 3 years. An international collaboration between Japan, the USA, Canada, and Europe is sharing various roles. In May 2019, the Institute of Space and Astronautical Science, JAXA, selected LiteBIRD as the strategic large mission No. 2.</jats:p>

  4. 先端技術と現代天文学の叡智を結集して宇宙創成期を観測する

    服部 誠

    理学部物語 2018/03

  5. Observational quantum astrophysics

    HATTORI Makoto

    Aoba Scientia 29 5-5 2017/12

  6. 18pSY-1 Science of Cosmic Microwave Background (CMB) and expectations of PLANCK(18pSY Exploring Early Universe and Physics beyond the Standard Model with CMB Observations)

    Hattori Makoto

    Meeting abstracts of the Physical Society of Japan 66 (2-1) 114-114 2011/08/24

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  7. 27pGL-1 Science of Cosmic Microwave Background (CMB) and expectations of PLANCK

    Hattori Makoto

    Meeting abstracts of the Physical Society of Japan 66 (1-1) 117-117 2011/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  8. Iron emission line from the galaxy cluster including the lensing radio galaxy 3C220.1 at z=0.62

    N Ota, K Mitsuda, M Hattori, T Mihara

    GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS 237 333-334 2001

  9. Gravitational Lensing in Clusters of Galaxies

    Hattori Makoto

    Butsuri 55 (7) 499-507 2000/07/05

    Publisher: The Physical Society of Japan (JPS)

    DOI: 10.11316/butsuri1946.55.499  

    ISSN: 0029-0181

  10. Detection of iron emission line from the galaxy cluster including the distant radio galaxy 3C220.1

    N Ota, K Mitsuda, M Hattori, T Mihara

    BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES 25 (3-4) 789-792 2000

    ISSN: 0273-1177

  11. Detection of Iron emission line from the galaxy cluster including the distant radio galaxy 3C220.1

    N Ota, K Mitsuda, M Hattori, T Mihara

    ASTRONOMISCHE NACHRICHTEN 320 (4-5) 295-295 1999

    ISSN: 0004-6337

  12. X-ray detection from the distant cluster of galaxies around 3CR184

    T Mihara, K Nogami, M Hattori, K Mitsuda, N Ota

    ASTRONOMISCHE NACHRICHTEN 320 (4-5) 293-293 1999

    ISSN: 0004-6337

  13. THE STATISTICS OF GIANT LUMINOUS ARC

    HATTORI M.

    Soryushiron Kenkyu 98 (1) A116-A119 1998/10/20

    Publisher: Soryushiron Kenkyu

    ISSN: 0371-1838

  14. Measurement of mass distribution of galaxy clusters using the giant luminous arc statistics with Le Fèvre et al.'s arc survey data

    M. Hattori, K. Watanabe, K. Yamashita

    Astronomy and Astrophysics 319 (3) 764-780 1997/03/20

    ISSN: 0004-6361

  15. ASCA OBSERVATIONS OF DISTANT CLUSTERS OF GALAXIES

    TSURU Takeshi, KOYAMA Katsuji, Hughes John. P, ARIMOTO Nobuo, KII Tsuneo, HATTORI Makoto

    Soryushiron Kenkyu 93 (3) C92-C95 1996/06/20

    Publisher: 素粒子論グループ 素粒子研究編集部

    DOI: 10.24532/soken.93.3_C92  

    ISSN: 0371-1838

  16. Hot Diffuse Matter in Clusters of Galaxies.

    Hattori Makoto, Tsuru Takeshi

    Tokyo Sugaku Kaisya Zasshi 49 (9) 743-750 1994

    Publisher: THE PHYSICAL SOCIETY OF JAPAN

    DOI: 10.11316/butsuri1946.49.743  

    ISSN: 0029-0181 2423-8872

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    銀河団は銀河の集団であると同時に,重力的に束縛された高温プラズマの塊でもある.この高温プラズマはX線天文衛星を用いて観測され,観測機器の進歩により目覚しい成果があがっており,今後も大きな発展が見込まれている.この小論では,この高温プラズマの性質や起源を探ると同時に,銀河,銀河団および宇宙の進化に関する情報を得る試みを紹介する.

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Books and Other Publications 1

  1. 天体物理学の基礎

    觀山, 正見, 野本, 憲一, 二間瀬, 敏史

    日本評論社 2023/08

    ISBN: 9784535607620

Presentations 25

  1. Map-based studies on how the CMB shadow degrades the foreground removal accuracy and how to mitigate it International-presentation

    Tamaki Murokoshi, Yuji Chinone, Masashi Nashimoto, Kiyotomo Ichiki, Makoto Hattori

    Galactic science and CMB foregrounds 2023/12/13

  2. Effect of the Internal Energy Bound for Spectral Energy Distribution of Interstellar Dust Grains International-presentation

    Kenji Amazaki, Makoto Hattori, Masashi Nashimoto

    Galactic science and CMB foregrounds 2023/12/13

  3. The CMB polarization telescope "GroundBIRD" - Status and future prospect International-presentation

    Y.Sueno, GB collaboration

    Galactic science and CMB foregrounds 2023/12/12

  4. Map-based studies on how the CMB shadow degrades the foreground removal accuracy and how to mitigate it International-presentation

    Tamaki Murokoshi, Yuji Chinone, Masashi Nashimoto, Kiyotomo Ichiki, Makoto Hattori

    Future Science with CMB x LSS 2023/04/11

  5. CMB望遠鏡GroundBIRD - 高速回転による大気放射揺らぎの抑制研究

    末野慶徳, GB collaborators

    日本物理学会2023年春季大会 2023/03/25

  6. 原始重力波起源の CMB 偏光 B モード観測における CMB モノポールの星間吸収の影響

    室越琳生, 茅根裕司, 梨本真志, 市來淨與, 服部誠

    日本天文学会2023年度春季年会 2023/03/15

  7. CMB 偏光観測実験 GroundBIRD に搭載する 超伝導検出器 MKID の開発

    田中智永, GB collaborators

    日本天文学会2023年春季大会 2023/03/14

  8. 月の観測データを用いた CMB 望遠鏡 GroundBIRD のビームパターンの推定

    辻井未来, GB collaborators

    日本天文学会2023年春季大会 2023/03/14

  9. ダスト内部エネルギーの制限を考慮した星間ダスト熱史追跡シミュレーションコードの開発

    天崎賢至, 服部誠, 梨本真志

    日本天文学会2022年秋季年会 2022/09/13

  10. CMB望遠鏡GroundBIRD-天体を用いた望遠鏡の較正研究

    末野慶徳, GB collaborators

    日本物理学会2022年秋季大会 2022/09/06

  11. CMB望遠鏡GroundBIRDのサイエンス観測に向けた準備状況 -ワイヤーを用いた偏光応答特性の評価

    本多俊介, GB collaborators

    日本物理学会2022年秋季大会 2022/09/06

  12. 東北に飛来した球状浮遊物体騒動で再確認した天文教育· 広報 普及活動の重要性

    服部誠, 伊藤芳春, 遊佐徹, 大槻功, 山崎剛

    日本天文学会2022年度春季年会 2022/03/03

  13. Evaluation of superconducting detectors, MKIDs, in magnetic fields and design of shields against them

    Hiroki Kutsuma, Koji Ishidoshiro, Chiko Otani, Atsushi Ohno, Tomoka Okada, Shugo Oguri, Fumiyasu Kanno, Kenji Kiuchi, Junya Suzuki, Osamu Tajima, Taketo Nagasaki, Makoto Hattori, Keishi Hosokawa, Satoru Mima

    2018/03/24

  14. CMB偏光Bモード観測における前景放射成分分離を目的としたフーリエ分光器の開発 における装置由来の系統誤差の低減

    2018/03/16

  15. M31のFIRデータを用いたストカスティック加熱モデルに基づいたダスト放射コード の検証

    梨本 真志, 服部 誠, 大坪 貴文, 下西 隆, 土井 靖生

    日本天文学会2018春季年会 2018/03/16

  16. Emissivity and the Degree of Polarization for Ellipsoidal Dust grains Based on the Physical Properties of Amorphous Solids

    2017/12/20

  17. A study of the Galactic dusts for the improvement of the CMB components separation International-presentation

    Masashi Nashimoto, Makoto Hattori, Takashi Shimonishi, Takafumi Ootsubo, Tetsuo Yamamoto, Yasuo Doi

    2017/10/18

  18. CMB偏光Bモード観測における前景放射成分分離の高精度化を目的としたフーリエ分 光器の開発

    2017/09/14

  19. Evaluation of Magnetic shield for GroundBIRD cryostat

    Hiroki Kutsuma, Jihoon Choi, Makoto Hattori, Masashi Hazumi, Hikaru Ishitsuka, Kenichi Karatsu, Kenji Kiuchi, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Jose Alberto Rubino Martin, Satoru Mima, Makoto Minowa, Makoto Nagai, Masato Naruse, Makoto Nagai, Taketo Nagasaki, Shugo Oguri, Chiko Otani, Rafael Rebolo, Ricardo T, Genova Santos, Yutaro Sekimoto, Munehisa Semoto, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

    2017/09/13

  20. ダスト偏光度の周波数依存性から探る星間ダストの物性

    2017/09/13

  21. Study of the physical properties of interstellar dust with the frequency dependence of the degree of polarization in millimeter wave bands International-presentation

    Masashi Nashimoto, Makoto Hattori, Chikako Nishihara, Takafumi Ootsubo, Tetsuo Yamamoto, Tsutomu Takeuchi, Yasuo Doi, Takashi Shimonishi

    Cosmic Dust 2018 2017/08/15

  22. Optimization of geomagnetic shielding for MKIDs mounted on rotating cryostat International-presentation

    Hiroki Kutsuma, Makoto Hattori, Kenji Kiuchi, Satoru Mima, Taketo Nagasaki, Shugo Oguri, Shugo Oguri, Osamu Tajima

    Low temperature detector 17 2017/07/17

  23. GroundBIRD - observation of CMB polarization with a high-speed scanning and MKIDs International-presentation

    Taketo Nagasaki, Jihoon Choi, Makoto Hattori, Masashi Hazumi, Hikaru Ishitsuka, Kenichi Karatsu, Kenji Kiuchi, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Jose Alberto Rubino Martin, Satoru Mima, Makoto Minowa, Makoto Nagai, Masato Naruse, Shugo Oguri, Chiko Otani, Rafael Rebolo, Ricardo T, Genova Santos, Yutaro Sekimoto, Munehisa Semoto, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

    Low Temperature Detectors 17 2017/07/17

  24. Development of cross-talk suppression algorithm for MKID readout International-presentation

    Kyungmin Lee, Jihoon Choi, Makoto Hattori, Masashi Hazumi, Hikaru Ishitsuka, Kenichi Karatsu, Kenji Kiuchi, Ryo Koyano, Hiroki Kutsuma, Jose Alberto Rubino Martin, Satoru Mima, Makoto Minowa, Makoto Nagai, Taketo Nagasaki, Masato Naruse, Shugo Oguri, Chiko Otani, Rafael Rebolo, Ricardo T, Genova Santos, Yutaro Sekimoto, Munehisa Semoto, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

    Low Temperature Detector 17 2017/07/17

  25. 背景放射で拓く宇宙創成の物理

    森島隆弘, 大坪貴文

    新学術領域領域シンポジウム 2014/06/02

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Research Projects 33

  1. Unveiling the Creation of the Universe through a Revisit of the E-mode Polarization of the CMB: The Fastest Scan Modulation and 8-Band Observation

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: Kyoto University

    2024/04/01 - 2027/03/31

  2. Probing the origin of the universe using the largest CMB telescope arrays to date Competitive

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Specially Promoted Research

    Institution: Kyoto University

    2022/04 - 2027/03

  3. 原始重力波の発見を目指す-ミリ波の広帯域観測で理解して分離するCMBと星間塵 Competitive

    服部 誠, 鈴木 惇也, 梨本 真志, 本多 俊介

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 国際共同研究加速基金(国際共同研究強化(B))

    Institution: 東北大学

    2020/10 - 2024/03

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    スペイン領テネリフェ島テイデ観測所に設置した宇宙マイクロ波背景放射(CMB)偏光観測望遠鏡GroundBIRD(GB)に搭載する145GHz帯観測用超伝導検出器MKIDの試験観測用1チップ23ピクセルをオランダSRONと協力して完成させた。これを令和3年12月にGBに搭載し、試験観測を開始した。月の観測データを用いたビームパターン測定を開始した。観測施設内の温度・湿度モニターを開発して設置した。望遠鏡を逆回転できる機構も完成させた。並行して電磁界数値シミュレーターを用いた145GHz帯および220GHz帯の本観測で用いるMKID検出器設計の最適化を行った。本研究計画で開発する検出器がフル装備されることで達成できるサイエンスのforecast論文を査読論文として出版した。 前景成分と呼ばれるCMB観測データに混入する天体起源のシグナルを観測データから精度よく除去し、CMB成分を抽出する手法の開発を推進した。偏光マップをフーリエ変換し、偏光EモードとBモードを分離し、Eモードをゼロにした後フーリエ逆変換したマップを作り、そのマップに対してInternal linear combinationと呼ばれる手法を適応することで、宇宙創成期のモデルの検証に必要な精度でCMB成分を抽出できることを示した。 高精度CMB観測の実施により大幅な理解の進展が期待される星間塵からの放射の物理モデル構築を行った。塵粒子が保持する熱エネルギー以上のエネルギーを持つ光子を放出できないという制限がこれまでの研究で考慮されていないことに気づいた。この制限を課すことで星間塵の温度分布および放射スペクトルがこれまでの結果から大きく異なることを示した。また、これまでの研究では星間塵の温度がCMBの温度を著しく下回る場合が現れ問題しされていたが、上記の制限を課すことでそのようなことが現れなくなることを示した。

  4. もしも君が杜の都で天文学者になったら2023 Competitive

    服部誠, 板由房

    Offer Organization: 天文学振興財団

    System: 天文学普及・啓発支援事業助成

    Category: 天文学普及・啓発支援事業助成

    Institution: 東北大学

    2023/08 - 2024/01

  5. The next generation of CMB observation that will realize the neutrino mass measurement and the exploration of super-TeV physics Competitive

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: The University of Tokyo

    2018/06 - 2023/03

  6. もしも君が杜の都で天文学者になったら2022 Competitive

    板由房, 服部誠

    Offer Organization: 天文学振興財団

    System: 天文学普及・啓発支援事業助成

    Category: 天文学普及・啓発支援事業助成

    Institution: 東北大学

    2022/08 - 2023/01

  7. もしも君が杜の都で天文学者になったら2020 Competitive

    服部誠, 板由房

    Offer Organization: 天文学振興財団

    System: 天文学普及・啓発支援事業助成

    Category: 天文学普及・啓発支援事業助成

    Institution: 東北大学

    2020/08 - 2021/01

  8. もしも君が杜の都で天文学者になったら2020 Competitive

    服部誠, 板由房

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2020/07 - 2021/01

  9. もしも君が杜の都で天文学者になったら2019 Competitive

    服部誠, 板由房

    Offer Organization: 天文学振興財団

    System: 天文学普及・啓発支援事業助成

    Category: 天文学普及・啓発支援事業助成

    Institution: 東北大学

    2019/08 - 2020/01

  10. もしも君が杜の都で天文学者になったら2019 Competitive

    服部誠, 板由房

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2019/07 - 2020/01

  11. もしも君が杜の都で天文学者になったら2018 Competitive

    服部誠, 板由房

    Offer Organization: 天文学振興財団

    System: 天文学普及・啓発支援事業助成

    Category: 天文学普及・啓発支援事業助成

    Institution: 東北大学

    2018/08 - 2019/01

  12. もしも君が杜の都で天文学者になったら2018 Competitive

    服部誠, 板由房, 津村耕司

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2018/07 - 2019/01

  13. もしも君が杜の都で天文学者になったら2017 Competitive

    津村耕司, 服部誠, 板由房

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2017/07 - 2018/01

  14. Development of CMB telescope with high-speed rotating scan modulation - quest for the cosmic inflation Competitive

    Tajima Oasamu, SEKIMOTO Yutaro, UCHIDA Tomohisa, YOSHIDA Mitsuhiro, NAGAI Makoto, KARATSU Kenichi, Ricardo Genova Santos, Lopez Rafael Rebolo, Won Eunil

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: High Energy Accelerator Research Organization

    2014/04 - 2017/03

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    The cosmic inflation is a leading hypothesis to generate the BIg-Bang, super high density and super hot era at the early stage of the universe. Its accelerated expansion of space-time metric generated the primordial gravitational waves as well as the Big-Bang. Cosmic Microwave Background radiation (CMB), in particular its asymmetric component of polarization patterns "B-mode", is the smoking gun evidence for the primordial gravitational waves. This primordial B-mode has not been observed yet. We developed a CMB telescope "GroundBIRD" which aims for the primordial B-mode. This telescope implements unique technologies: high-speed rotating scan modulation, cold optics, and cutting-edge superconducting detector. This grant focused on developments for systems for high-speed scan and cold optics. We established the technology to operate superconducting detectors on such an unique operation condition.

  15. もしも君が杜の都で天文学者になったら2016 Competitive

    津村耕司, 服部誠, 板由房

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2016/07 - 2017/01

  16. The Physical Origin of the Universe viewed through the Cosmic Background Radiation - Management of Research -

    HAZUMI Masashi, OTANI Chiko, MATSUURA Shuji, HATTORI Makoto, KODAMA Hideo, HIGUCHI Takeo, TAJIMA Osamu, SEKIMOTO Yutaro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: High Energy Accelerator Research Organization

    2009/07/23 - 2016/03/31

  17. もしも君が杜の都で天文学者になったら2015 Competitive

    板由房, 服部誠

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2015/07 - 2016/01

  18. もしも君が杜の都で天文学者になったら2014 Competitive

    板由房, 服部誠

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2014/07 - 2015/03

  19. ハーバード天文台を核とした米国研究機関との連携強化による新時代天体物理分野の開拓 Competitive

    服部誠, 二間瀬敏史, 山田享, 斎尾英行, 土井靖生, 千葉柾司, 李宇珉, 秋山正幸, 板由房

    Offer Organization: 日本学術振興会

    System: 頭脳循環を加速する若手研究者戦略的海外派遣プログラム

    Category: 頭脳循環を加速する若手研究者戦略的海外派遣プログラム

    Institution: 東北大学

    2011/10 - 2014/03

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    ハーバード大学天体物理研究センターを核として、米国と豪州の研究機関への大学院生を中心とした若手研究者を長期派遣し、国際共同研究の推進と若手研究者の育成を行なった。

  20. Development of high accuracy component separation scheme between cosmic microwave background radiation and foreground emissions Competitive

    HATTORI Makoto, OOTSUBO Takafumi, DOI Yasuo, MATSUMOTO Ryouji, TAMURA Motohide, INOUE Kaiki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Tohoku University

    2009/07 - 2014/03

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    We have devoted our research activities to developing high accuracy component separation scheme which is able to separate cosmic microwave background radiation signal and foreground emission components signals originated from interstellar matter in our Galaxy from observed polarization data in microwave bands. We have completed a new original component separation scheme based on hierarchical bayesian methods. We have also performed studies which lead to deepening of our physical understandings of polarization microwave emission from the Galactic interstellar matter. One of these is all sky far infrared diffuse light map making from the all sky survey data obtained by the Japanese infrared satellite " AKARI". The PC cluster machine bought by this financial support has played crucial role to complete the first version of the "AKARI" far infrared all sky maps within the research period of this budget.

  21. もしも君が杜の都で天文学者になったら2012 Competitive

    服部誠, 板由房

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2012/07 - 2013/01

  22. もしも君が杜の都で天文学者になったら2011 Competitive

    服部誠, 板由房

    Offer Organization: 日本学術振興会

    System: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Category: ひらめき☆ときめきサイエンス~ようこそ大学の研究室へ~KAKENHI

    Institution: 東北大学

    2011/07 - 2012/01

  23. ミリ波ボロメトリック天体干渉計の開発 Competitive

    服部誠, 松尾宏

    Offer Organization: 国立天文台

    System: 共同開発経費

    Category: 共同開発経費

    Institution: 東北大学

    2007/04 - 2008/03

  24. ミリ波ボロメトリック天体干渉計の開発 Competitive

    服部誠, 松尾宏

    Offer Organization: 国立天文台

    System: 共同開発経費

    Category: 共同開発経費

    Institution: 東北大学

    2006/04 - 2007/03

  25. Development of super broad band, ultra-high sensitivity, ultra-wide field of view interferometer in milli-meter and submilli-meter wave bands Competitive

    HATTORI Makoto, MATSUO Hiroshi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: Tohoku University

    2004 - 2005

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    Aim of our researches were development of a new type of millimeter and submillimeter interferometer which has much larger bandwidth, much higher sensitivity and much wider field of view compared with usually used interferometer in this wavebands. We have realized this type of interferometer by applying Martin-Puplett type Fourier transform spectrometer to aperture synthesis system. This is an concrete realization of the Michelson type bolometeric interferometer. Theoretical fundamentals were summarized in the paper published in Applied Optics. The results of laboratory experiments which had succeeded in obtaining source images in extremely broad band of 0.1THz-1.05THz in every 0.01THz simuletaneously was summarized in a paper which was submitted to Applied Optics. We have installed our instruments in Nobeyama Radio Observatory in where atmospheric condition is suited to millimeter and submillimeter observations and infrastructures for performing experiments are well developed. We have succeeded in observations of Sun in 0.1THz-0.36THz with our instrument. This is an extremely wide bandwidth compared with usual interferometer in this wavebands that is at most a few 0.01THz. PC control systems were developed and accuracies of pointing and guiding of astronomical objects were dramatically improved. Because of this improvement, we have recently succeeded in observations of Moon. We developed bolometer detectors which has a higher sensitivity than possible highest sensitivity of receiver used in usual interferometer. By installing this detector on our instrument, we have concluded that the sensitivity of our instrument is able to increase dramatically by reducing the noise originated from inside of our instruments by cooling down the whole instrument. The way of extending FOV of interferometer by applying detector array to our instruments were theoretically considered and proposed.

  26. ミリ波ボロメトリック天体干渉計の開発 Competitive

    服部誠、松尾宏

    Offer Organization: 国立天文台

    System: 共同開発経費

    Category: 共同開発経費

    Institution: 東北大学

    2003/04 - 2004/03

  27. Development of Submillimeter-wave Camera using SIS Photon Detectors

    MATSUO Hiroshi, EZAWA Hajime, KUNO Nario, NOGUCHI Takashi, HATTORI Makoto, SHIMIZU Hirohiko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: National Astronomical Observatory

    2001 - 2003

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    Development of submillimeter-wave SIS photon detector is performed using superconducting niobium junctions to realize wide-field and wide-bandwidth observations in submillimeter-wave. We have also made 3-color bolometer system operating at 350,650 and 850 GHz to start submilllimeter-wave continuum observations with ASTE (Atacama Submillimeter Telescope Experiment) submillimeter telescope. In the first year of development, we have successfully fabricated low leakage, less than 10 pA, tunnel junction with 1kA/cm2 current density by optimizing the fabrication conditions. In the next year we have observed submillimeter-wave response at 440 GHz and 650 GHz using 4 micron and 3 micron diameter junctions, respectively. In the last year, we have evaluated the detector performance, such as leakage current, current noise, voltage responsivity, quantum efficiency, linearity, time constant and beam pattern with optics. NEP shows 10(-16)W/sqrt(Hz). The measured performance is superior to submillimeter-wave bolometers. The fabrication yield is improve to be 98% for single junctions and 78% for detector elements. The 3-color bolometer system is developed to make early continuum observations with ASTE telescope and to evaluate the antenna performance. Cryostat for 0.3 K operations is developed to realize remotely operable low vibration cryogenics. We have started scientific observing runs with the bolometric receivers.

  28. ミリ波ボロメトリック天体干渉計の開発 Competitive

    服部誠, 松尾宏

    Offer Organization: 国立天文台

    System: 共同開発経費

    Category: 共同開発経費

    Institution: 東北大学

    2001/04 - 2002/03

  29. ミリ波ボロメトリック天体干渉計の開発 Competitive

    服部誠, 松尾宏

    Offer Organization: 国立天文台

    System: 共同開発経費

    Category: 共同開発経費

    Institution: 東北大学

    2000/04 - 2001/03

  30. Observational Studies of Cosmie Micro Wave Background Gnisotropy Competitive

    HATTORI Makoto, MIZUNO Kohji, SHIBATA Yukio, FURAMASE Toshifami, MATSUO Hiroshi

    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

    1999 - 2000

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    We have set up a new laboratory for development of mm-submm wave astronomical instruments aiming to measure Cosmic Microwave Background anisotropy and polarization in astronomical institute at Tohoku University. The application of the Martin & Puplett type Fourier transform spectrometer to aperture synthesis was considered. An original mutual correlation type Martin & Puplett Fourier transform spectrometer was designed and developed. The instrument was designed to be compact as possible as we can, that is minimizing the light path length and the size etc. The development of this instrument was completed within 1999 budget year. Shibata and Hattori performed fundamental experiments using this instrument in the laboratory during 2000 budget year. While we were performing the experiments, we have theoretically shown that the angular distribution of the 4 Stokes parameters on the sky can be measured for wide band mm-submm waves with this instrument. In the laboratory experiments, we have shown that our instrument is actually able to measure the 4 Stokes parameters as interference signals. The developments of the mm-submm wave detectors were performed mainly in Advanced Technology Center at National Astronomical Observatory of Japan lead by Matsuo. Bolometer detectors for astronomical observations were developed and performance verifications were done. The development and performance verifications of the bolometer detector for bright sources were completed with 2000 budget year. The development of the high sensitivity bolometer detector for faint sources was started at 2000. The developments of the SIS direct submm detector was also performed. We have at the first time shown experimentally that the SIS direct detector achieves extremely low noise level of NEP=10^<-18>W/√<Hz>. The special antenna for efficient coupling between the submm waves and the SIS direct detector was designed. The fundamental designs for development of array of SIS direct detectors were also done.

  31. A New Gravitational Lens Phenomena by Cluster of Galaxies and the Measurement of Cosmological Constant

    FUTAMASE Toshifumi, HATTORI Makoto

    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

    1997 - 1999

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    This study investigates methods to determine the cosmological parameters, particularly cosmological constant using gravitational lensing. The following are results of the study. 1. The distribution of angular separation between images of lensed quasar can be used to put the upper bound for the cosmological constant. We examined the magnification bias which plays an important role in this study and obtained more accurate estimation for this. Our result shows that the existence of the cosmological constant cannot be denied by the presently available observations. 2. The number of giant luminous arcs in clusters of galaxies is unexpectedly large. We examined this problem and found that the presence of the cosmological constant increase the expected number of arcs. 3. We showed that the observation of Einstein rings using large telescope such as SUBARU may impose a severe constraint on the cosmological constant. 4. We studied the method to estimate the mass distribution of cluster of galaxies using weak shear field created by coherent distortion of background galaxies and applied the method to Q0957+561 and PG1115+080 to obtain the constraint on the Hubble parameter.

  32. ダークレンズ探査 Competitive

    服部誠

    Offer Organization: 山田科学振興財団

    System: 若手研究者研究助成

    Category: 若手研究者研究助成

    Institution: 東北大学

    1996/09 - 1998/03

  33. 銀河団質量分布の進化の観測的解明

    服部 誠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東北大学

    1997 - 1998

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    以下にまとめた研究活動を通して銀河団の質量分布の進化について非常に興味ある知見を得る事ができた。又自身によるこれら一連の研究成果を含めた関連分野の現時点での到達点と積み残された課題について研究発表リストの7番目に挙げた論文にまとめた。 1. 重力レンズ効果を用いた方法とX線観測を用いた方法の二つの独立な方法による銀河団の質量分布測定の結果が良く一致することを示した。この結果は、一般相対論とニュートン重力理論という二つの重力理論を銀河団という巨大なスケールにまで拡張して使用することに対して観測的な証拠を与える重要な結果である。 2. ダークレンズ探査の提唱とX線観測を用いた実践により、非常に遠方の大規模構造を発見する上でダークレンズ探査が有力であることを示した。 3. サブミリ波という新しい波長域での世界最先端の観測装置を用いて銀河団を観測し、理論的にSunyaev-Zel'dovich効果として存在が指摘されていた銀河団のサブミリ波域での輝度上昇の世界初検出に成功した。この成果は研究発表リスト5番目に挙げた論文で発表された。この結果はサブミリ波での銀河団の観測結果が、宇宙論や銀河団の物理状態を解明する上で非常に有益な新しい知見をもたらすことを実例をもって証明した。 4. 研究発表リスト4番目の論文では、銀河団による重力レンズ効果を用いた宇宙項の新しい測定方法を提案した。 5. この間、研究の次の新たなステップへの発展に向けて着々と準備を進めてきた。宇宙論的磁気流体シミュレーション用数値計算コードの開発、ミリ波サブミリ波検出器開発に関わる基本実験及び光学系設計等がそれである。

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Teaching Experience 6

  1. Analytical mechanics Tohoku University Undergraduate (liberal arts)

  2. Introduction to physics for universe Tohoku University Graduate (liberal arts)

  3. General relativity Tohoku University Undergraduate (specialized)

  4. Special lecture on radio astrtonomy Tohoku University Postgraduate

  5. Electromagnetic dynamics for astrophysics Tohoku University Undergraduate (specialized)

  6. Basic Mathematics for physics Tohoku University Undergraduate (liberal arts)

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Works 1

  1. 頭脳循環ニュースレター

    服部誠

    冊子およびWeb 2012/03 - 2014/03

    Type: Other

Social Activities 43

  1. 第2回もしも君が杜の都で天文学者になったら。。。

    東北大学理学研究科・仙台市天文台

    2012/08/04 - 2912/08/10

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。私は実施代表者として活動した。今回は、ひらめき☆ときめきサイエンスの企画として実施した。

  2. 第12回もしも君が杜の都で天文学者になったら

    東北大学理学研究科・仙台市天文台

    2022/12/23 - 2022/12/29

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。板が実施代表者をつとめ、私は協力者として活動した。今回は、天文学振興財団の企画として実施した。

  3. 青森高校出前授業

    青森県立青森高校

    2022/10 - 2022/10

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    宇宙論について講義した。

  4. 東北大学オープンキャンパス体験授業

    東北大学理学研究科

    2022/07 - 2022/07

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    オープンキャンパスの企画の一つとしての体験授業で、宇宙論について講義した。

  5. 相模原高校出前授業

    オンライン

    2022/06 - 2022/06

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    宇宙論について講義した

  6. 第11回もしも君が杜の都で天文学者になったら。。。

    東北大学理学研究科・仙台市天文台

    2021/12/22 - 2021/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。私は実施代表者として活動した。今回は、ひらめき☆ときめきサイエンスと天文学振興財団の企画として実施した。コロナのためオンラインで開催した。

  7. 八戸北高校出前授業

    オンライン

    2021/10 - 2021/10

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    宇宙論について講義した。

  8. 山形東高校出前授業

    オンライン

    2021/08 - 2021/08

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    宇宙論について講義した。

  9. 宇宙コミュニティー立ち上げ記念講演会

    オンライン

    2021/06 - 2021/06

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    宇宙論について講演した。

  10. 第10回もしも君が杜の都で天文学者になったら。。。

    東北大学理学研究科・仙台市天文台

    2020/11/21 - 2020/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。私は実施代表者として活動した。今回は、ひらめき☆ときめきサイエンスと天文学振興財団の企画として実施した。コロナのためオンラインで開催した。

  11. 山形東高校出前授業

    山形県立山形東高校

    2020/08 - 2020/08

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    宇宙論について講義した。

  12. 第9回もしも君が杜の都で天文学者になったら

    東北大学理学研究科・仙台市天文台

    2019/12/22 - 2019/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。私は実施代表者として活動した。今回は、ひらめき☆ときめきサイエンスと天文学振興財団の企画として実施した。

  13. 第8回もしも君が杜の都で天文学者になったら

    東北大学理学研究科・仙台市天文台

    2018/12/23 - 2018/12/29

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。私は実施代表者として活動した。今回は、ひらめき☆ときめきサイエンスと天文学振興財団の企画として実施した。

  14. 会津高校大学訪問体験授業

    東北大学

    2018/07 - 2018/07

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    宇宙論について講義した。

  15. 秋田高校出前授業

    秋田県立秋田高校

    2018/06 - 2018/06

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    宇宙論について出前授業を行なった。

  16. 第7回もしも君が杜の都で天文学者になったら

    2017/12/22 - 2017/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。今回は、津村氏が代表となり私は実施協力者の一人として活動した。今回は、ひらめき☆ときめきサイエンスおよび天文学振興財団の企画として実施した。

  17. 鶴岡南高校出前授業

    山形県立鶴岡南高校

    2017/10 - 2017/10

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    宇宙論について出前授業を行なった。

  18. 会津高校大学訪問体験授業

    東北大学

    2017/07 - 2017/07

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    会津高校大学訪問企画の一環として、宇宙論について体験授業を行なった。

  19. 山形河北中学大学訪問体験授業

    東北大学理学研究科

    2017/05 - 2017/05

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    山形河北中学の大学訪問企画の一環として、宇宙論について体験授業を行なった。

  20. 第6回もしも君が杜の都で天文学者になったら

    東北大学理学研究科・仙台市天文台

    2016/12/22 - 2016/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。今回は、津村氏が代表となり私は実施協力者の一人として活動した。今回は、ひらめき☆ときめきサイエンスの企画として実施した。

  21. 第5回もしも君が杜の都で天文学者になったら

    東北大学理学研究科・仙台市天文台

    2015/12/22 - 2015/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」の第5回を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。今回は、板氏が代表となり私は実施協力者の一人として活動した。今回は、ひらめき☆ときめきサイエンスの企画として実施した。

  22. 第4回もしも君が杜の都で天文学者になったら。。。

    2014/12/21 - 2014/12/27

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」の第4回を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。今回は、板氏が代表となり私は実施協力者の一人として活動した。今回は、サイエンスキャンプおよびひらめき☆ときめきサイエンスの企画として実施した。

  23. PULSE@Parkes in Sendai 2014

    仙台市天文台

    2014/11/16 - 2014/11/16

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    仙台圏を中心に全国の高校生20名を集め、豪州パークス天文台の電波望遠鏡をリモートで操作して、パルサーからのシグナルをリアルタイムで検知し、パルサーまでの距離を測定する実習を実施。

  24. 第3回もしも君が杜の都で天文学者になったら。。。

    東北大学理学研究科・仙台市天文台

    2013/12/22 - 2013/12/28

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」の第4回を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。今回は、板氏が代表となり私は実施協力者の一人として活動した。

  25. 秋田北高校出前授業

    秋田県立秋田北高校

    2013/12 - 2013/12

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    宇宙論について講義した

  26. 仙台第一高校出前授業

    宮城県立仙台第一高校

    2012/09 - 2012/09

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    宇宙論について出前授業で講義した

  27. 第1回もしも君が杜の都で天文学者になったら。。。

    東北大学理学研究科・仙台市天文台

    2011/09/03 - 2011/10/10

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    2011年度に私が代表が立ち上げた高校生に天文学者職業体験の場を提供する企画「もしも君が杜の都で天文学者になったら。。。」を開催した。これは、仙台市天文台と東北大学天文学教室が共催で開催する、高校生にアクティブラーニングの場を提供し、更に進路決定の参考にしてもらう事を主眼とした企画である。私は実施代表者として活動した。今回は、ひらめき☆ときめきサイエンスの企画として実施した。

  28. 仙台第一高校出前授業

    宮城県立仙台第一高校

    2011/09 - 2011/09

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    宇宙論について出前授業で講義した。

  29. 盛岡第三高校出前授業

    岩手県立盛岡第三高校

    2010/10 - 2010/10

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    宇宙論について出前授業で講義した

  30. 角田高校出前授業

    角田高校

    2009/10 - 2009/10

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    宇宙論について出前授業で講義した

  31. 白石高校出前授業

    宮城県立白石高校

    2008/10 - 2008/10

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    宇宙論について出前授業を行なった

  32. 東北大学天文学教室市民講演会

    仙台市天文台

    2000/09 - 2007/09

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    東北大学天文学教室の教員が一人づつローテーションで仙台市天文台で市民むけ3ヶ月に一度のペースで講演会を行う企画運営した。

  33. 野辺山宇宙電波観測所一般公開日特別講演

    野辺山宇宙電波観測所

    2007/08/25 - 2007/08/25

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    野辺山電波観測所の一般公開日の来訪者向け一般公演として、重力レンズ現象を用いた宇宙の研究について講演した。

  34. 秋田大学一般講演

    秋田大学

    2006/09 - 2006/09

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    秋田大学にて、宇宙が専門外の学生向けに宇宙論について講演。

  35. 南ピレネー天文台一般講演

    フランス南ピレネー天文台

    1997/12/10 - 1997/12/10

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    ダークレンズ探査について講演

  36. 秋田県湯沢市立雄勝中学校2年生上級学校訪問

    2016/10/05 -

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    40分程度の天文に関する講義を担当した。偏光で探る宇宙誕生の様子について偏光板を用いた実習を交えて講義した。

  37. 平成28年度にいがた市民大学講座

    2016/08/09 -

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    平成28年度にいがた市民大学講座の一コマ第8回を担当し宇宙を観測する装置と技術について講義した

  38. 星のソムリエ大船渡講座

    2015/10/31 -

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    被災地支援の名目で開催されて大船渡での星のソムリエ講座の一講座を受け持った。旅費謝金を受けとらずボランティアとして実施した。

  39. 鶴岡南高校での出前授業

    2015/09/14 -

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    鶴岡南高校2年生を対象とした一コマ50分の出前授業を二コマ実施した。

  40. 「あかり」の遠赤外線全天画像データ公開

    2015/01/16 -

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    赤外線天文衛星「あかり」が観測した宇宙の全天の詳細な遠赤外線画像データを、東京大学大学院総合文化研究科の土井靖生(どい やすお)助教らが作成した。完成した全天画像データを、世界中の研究者が利用できるように、宇宙航空研究開発機構(JAXA)宇宙科学研究所からインターネットを通じて昨年暮れに公開した。 JAXA宇宙科学研究所の瀧田怜(たきた さとし)研究員、東京大学大学院総合文化研究科の大坪貴文(おおつぼ たかふみ)研究員、筑波大学計算科学研究センターの田中昌宏(たなか まさひろ)研究員、東北大学大学院理学研究科の服部誠(はっとり まこと)准教授らや英国の研究者との共同研究。土井靖生助教らは「遠赤外線は星を作るもととなる星間物質から放射されるため、星間物質の分布を探ることができる。星や惑星の誕生過程を知る鍵となる画像データで、天文学のさまざまな分野の研究に貢献するだろう」と公開の意義を指摘している。 「あかり」は2006年2月に高度

  41. 2014年度「もし天」成果発表会行われる

    2014/12/28 -

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    2014年度「もし天」の活動を紹介

  42. 泉館山高等学校での出前授業

    2014/10/24 -

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    泉館山高校2年生を対象とした一コマ50分の出前授業を二コマ実施した。

  43. アルマ望遠鏡一般講演会

    仙台市天文台

    2005/09/23 -

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    仙台市民向けアルマ望遠鏡広報活動

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Media Coverage 17

  1. キュウタイ依然

    文藝春秋 週間文春 巻頭グラビア記事

    2023/03/02

    Type: Newspaper, magazine

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    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  2. 「UFOかも」東北で相次いだ目撃情報

    朝日新聞 朝日新聞朝刊 社会面

    2023/02/16

    Type: Newspaper, magazine

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    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  3. 「中国の気球」、3年前に東北で撮影 専門家「大きさも構造も酷似」 Myself

    朝日新聞 朝日digital

    2023/02/15

    Type: Internet

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    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  4. アメリカの気球と宮城で目撃された気球について Myself

    NHK サタデーウオッチ9

    2023/02/11

    Type: TV or radio program

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    アメリカの気球と宮城で目撃された気球について解説

  5. 東京新聞記事

    東京新聞 東京新聞web版

    2023/02/07

    Type: Newspaper, magazine

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    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  6. 米飛行の気球「中国・大連から」

    河北新報 河北新報朝刊

    2023/02/07

    Type: Newspaper, magazine

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  7. アメリカで目撃された気球と2020年に宮城や福島で目撃された謎の気球について

    福島テレビ テレポートプラス

    2023/02/06

    Type: TV or radio program

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    アメリカで目撃された気球と2020年に宮城や福島で目撃された謎の気球について見解を報道

  8. アメリカ軍 中国の気球を撃墜 なぜ白色?専門家から疑問も…“軍施設の画像や電波情報取得などが目的か” Myself

    TBS Nスタ・TBS NEWS DIG

    2023/02/06

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  9. 「アメリカと宮城県の球体はいずれも中国から」東北大学服部誠准教授 Myself

    KHB東日本放送 khb5

    2023/02/06

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  10. "中国の気球"米戦闘機で撃墜...3年前に日本上空にも飛来?専門家「構造ほぼ一緒」 Myself

    KHB KHBニュース グッド!モーニング

    2023/02/06

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  11. 中国の"偵察気球"米撃墜で緊迫...狙いは? Myself

    フジテレビ めざまし8

    2023/02/06

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  12. 米軍が撃墜の中国「謎の気球」過去に日本上空にも"似た球体"専門家「構造ほぼ一緒」 Myself

    テレビ朝日 サンデーステーション

    2023/02/05

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  13. アメリカ上空で確認の気球どこから? Myself

    TBS news23

    2023/02/03

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  14. 「朝鮮半島かその先の中国か」謎の"丸く白い"飛行物体の正体は...? Myself

    TBCテレビ Nスタミヤギ

    2023/02/03

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  15. アメリカで目撃“謎の気球”宮城の「飛行物体」も中国からの可能性「政府は真相を解明してほしい」 Myself

    絆みやぎch tbc東北放送

    2023/02/02

    Type: TV or radio program

    More details Close

    2020年6月に仙台上空で目撃された謎の白い球体と米国で撃墜された中国偵察気球の関連について見解を掲載

  16. Nスタミヤギ出演

    TBC Nスタミヤギ

    2022/01/06

    Type: TV or radio program

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    2020 年6 月、2021 年9 月に東北上空で目撃された白い球体の 正体について、目撃情報と気象情報をもとに科学的推論を解説した。

  17. パンドラTV出演 Myself

    関西テレビ パンドラTV

    2021/12/29

    Type: TV or radio program

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    2020 年6 月、2021 年9 月に東北上空で目撃された白い球体の正 体に迫る番組内で、目撃情報と気象情報をもとに科学的推論を 解説した。

Show all Show first 5

Academic Activities 1

  1. 日本学術振興会, 特別研究員等審査会専門委員及び国際事業委員会書面審査員・書面評価員

    2016/08 - 2018/04

    Activity type: Scientific advice/Review

Other 3

  1. Measurements of quantum optical states of the astronomical objects

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    天体のg2測定による量子光学状態測定の実現を検討

  2. Ground base cosmic microwave polarization observations projects: GroundBIRD

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    宇宙マイクロ波背景放射地上偏光観測実験GroundBIRD計画の推進

  3. Study of thermal emission and polarization emission from interstellar dusts

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    星間ダストからの強度および偏光放射の研究