Details of the Researcher

PHOTO

Shijun Yoshida
Section
Graduate School of Science
Job title
Assistant Professor
Degree
  • 博士(学術)(東京大学)

  • 修士(理学)(弘前大学)

Professional Memberships 1

  • The Astronomical Society of Japan

Research Areas 2

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

  • Natural sciences / Astronomy /

Papers 79

  1. How different is the magnetic field at the core–crust interface from that at the neutron star surface? The range allowed in magnetoelastic equilibrium Peer-reviewed

    Yasufumi Kojima, Shijun Yoshida

    Monthly Notices of the Royal Astronomical Society 527 (2) 2297-2302 2023/10/21

    Publisher: Oxford University Press (OUP)

    DOI: 10.1093/mnras/stad3218  

    ISSN: 0035-8711

    eISSN: 1365-2966

    More details Close

    ABSTRACT This study was focused on the investigation of a magnetic field penetrating from the core of a neutron star to its surface. The range of possible field configurations in the intermediate solid crust is less limited owing to the elastic force acting on the force balance. When the Lorentz force is excessively strong, the magnetoelastic equilibrium does not hold, and thus, the magnetic field becomes constrained. By numerically solving for the magnetoelastic equilibrium in a thin crust, the range of the magnetic field at the core–crust interface was determined, while assuming the exterior to be fixed as a dipole in vacuum. The results revealed that the toroidal component should be smaller than the poloidal component at the core–crust interface for the surface dipole, B0 > 2.1 × 1014 G. Consequently, a strong toroidal field, for example, B ∼ 1016 G, as suggested by free precession of magnetars should be confined to a deep interior core and should be reduced to B ∼ 1014 G at the bottom of the crust. The findings of this study provide insights into the interior field structure of magnetars. Further investigations on more complicated geometries with higher multipoles and exterior magnetosphere are necessary.

  2. Equilibriums of extremely magnetized compact stars with force-free magnetotunnels Peer-reviewed

    Kōji Uryū, Shijun Yoshida, Eric Gourgoulhon, Charalampos Markakis, Kotaro Fujisawa, Antonios Tsokaros, Keisuke Taniguchi, Mina Zamani

    Physical Review D 107 (10) 2023/05/09

    Publisher: American Physical Society (APS)

    DOI: 10.1103/physrevd.107.103016  

    ISSN: 2470-0010

    eISSN: 2470-0029

  3. New code for equilibriums and quasiequilibrium initial data of compact objects. IV. Rotating relativistic stars with mixed poloidal and toroidal magnetic fields Peer-reviewed

    Kōji Uryū, Shijun Yoshida, Eric Gourgoulhon, Charalampos Markakis, Kotaro Fujisawa, Antonios Tsokaros, Keisuke Taniguchi, Yoshiharu Eriguchi

    Physical Review D 100 (12) 2019/12/19

    DOI: 10.1103/physrevd.100.123019  

    ISSN: 2470-0010

    eISSN: 2470-0029

  4. Space gravitational-wave antennas DECIGO and B-DECIGO

    Seiji Kawamura, Takashi Nakamura, Masaki Ando, Naoki Seto, Tomotada Akutsu, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Isao Kawano, Mitsuru Musha, Kazuhiro Nakazawa, Shuichi Sato, Takeshi Takashima, Takahiro Tanaka, Kimio Tsubono, Jun'ichi Yokoyama, Kazuhiro Agatsuma, Koh-suke Aoyanagi, Koji Arai, Akito Araya, Naoki Aritomi, Hideki Asada, Yoichi Aso, Dan Chen, Takeshi Chiba, Toshikazu Ebisuzaki, Satoshi Eguchi, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Rina Gondo, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Kiwamu Izumi, Shinya Kanemura, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Sachiko Kuroyanagi, Kei-ichi Maeda, Hideo Matsuhara, Nobuyuki Matsumoto, Yuta Michimura, Osamu Miyakawa, Umpei Miyamoto, Shinji Miyoki, Mutsuko Y. Morimoto, Toshiyuki Morisawa, Shigenori Moriwaki, Shinji Mukohyama, Shigeo Nagano, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Naoko Ohishi, Masashi Ohkawa, Kenshi Okada, Norio Okada, Koki Okutomi, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Ryo Saito, Masaaki Sakagami, Shin-ichiro Sakai, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Kazunori Shibata, Ayumi Shimo-oku, Hisaaki Shinkai, Ayaka Shoda, Kentaro Somiya, Hajime Sotani, Aru Suemasa, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Nobuyuki Tanaka, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Akitoshi Ueda, Ken-ichi Ueda, Takafumi Ushiba, Masayoshi Utashima, Yaka Wakabayashi, Kent Yagi, Kazuhiro Yamamoto, Toshitaka Yamazaki, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino

    INTERNATIONAL JOURNAL OF MODERN PHYSICS D 28 (12) 2019/09

    DOI: 10.1142/S0218271818450013  

    ISSN: 0218-2718

    eISSN: 1793-6594

  5. Stably stratified stars containing magnetic fields whose toroidal components are much larger than the poloidal ones in general relativity: A perturbation analysis Peer-reviewed

    Shijun Yoshida

    Physical Review D 99 (8) 2019/04/17

    Publisher: American Physical Society (APS)

    DOI: 10.1103/physrevd.99.084034  

    ISSN: 2470-0010

    eISSN: 2470-0029

  6. The status of DECIGO Peer-reviewed

    Shuichi Sato, Seiji Kawamura, Masaki Ando, Takashi Nakamura, Kimio Tsubono, Akito Araya, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Shigenori Moriwaki, Mitsuru Musha, Kazuhiro Nakazawa, Kenji Numata, Shin-ichiro Sakai, Naoki Seto, Takeshi Takashima, Takahiro Tanaka, Kazuhiro Agatsuma, Koh-suke Aoyanagi, Koji Arai, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Kei-ichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y. Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shinji Mukohyama, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Norio Okada, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Ken-ichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun’ichi Yokoyama, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino

    Journal of Physics: Conference Series 840 (1) 012010-012010 2017/05

    Publisher: IOP Publishing

    DOI: 10.1088/1742-6596/840/1/012010  

    ISSN: 1742-6588

    eISSN: 1742-6596

  7. Tidal deformability and I-Love-Q relations for gravastars with polytropic thin shells Peer-reviewed

    Nami Uchikata, Shijun Yoshida, Paolo Pani

    PHYSICAL REVIEW D 94 (6) 064015 2016/09

    DOI: 10.1103/PhysRevD.94.064015  

    ISSN: 2470-0010

    eISSN: 2470-0029

  8. Slowly rotating thin shell gravastars Peer-reviewed

    Nami Uchikata, Shijun Yoshida

    CLASSICAL AND QUANTUM GRAVITY 33 (2) 025005 2016/01

    DOI: 10.1088/0264-9381/33/2/025005  

    ISSN: 0264-9381

    eISSN: 1361-6382

  9. Non-axisymmetric magnetic modes of neutron stars with purely poloidal magnetic fields Peer-reviewed

    Hidetaka Asai, Umin Lee, Shijun Yoshida

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 455 (2) 2228-2241 2016/01

    DOI: 10.1093/mnras/stv2368  

    ISSN: 0035-8711

    eISSN: 1365-2966

  10. Non-radial oscillations of the magnetized rotating stars with purely toroidal magnetic fields Peer-reviewed

    Hidetaka Asai, Umin Lee, Shijun Yoshida

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 449 (4) 3620-3634 2015/06

    DOI: 10.1093/mnras/stv538  

    ISSN: 0035-8711

    eISSN: 1365-2966

  11. Slowly rotating regular black holes with a charged thin shell Peer-reviewed

    Nami Uchikata, Shijun Yoshida

    PHYSICAL REVIEW D 90 (6) 064042 2014/09

    DOI: 10.1103/PhysRevD.90.064042  

    ISSN: 1550-7998

    eISSN: 1550-2368

  12. 21aSB-4 スペース重力波アンテナDECIGO計画(55) : DECIGO/DPFの概要(21aSB 重力波(KAGRA,DECIGO,TOBA,検出器),宇宙線・宇宙物理領域)

    安東 正樹, 川村 静児, 瀬戸 直樹, 中村 卓史, 坪野 公夫, 佐藤 修一, 田中 貴浩, 船木 一幸, 沼田 健司, 神田 展行, 井岡 邦仁, 高島 健, 横山 順一, 阿久津 智忠, 武者 満, 上田 暁俊, 麻生 洋一, 新谷 昌人, 坂井 真一郎, 青柳 巧介, 我妻 一博, 浅田 秀樹, 新井 宏二, 池上 健, 石川 毅彦, 石崎 秀晴, 石原 秀樹, 和泉 究, 市來 淨與, 伊東 宏之, 伊藤 洋介, 井上 開輝, 植田 憲一, 牛場 崇文, 歌島 昌由, 江口 智士, 江尻 悠美子, 榎 基宏, 戎崎 俊一, 江里口 良治, 大石 奈緒子, 大河 正志, 大橋 正健, 大原 謙一, 大渕 喜之, 岡田 健志, 岡田 則夫, 奥富 弘基, 河島 信樹, 川添 史子, 河野 功, 木内 建太, 岸本 直子, 國中 均, 國森 裕生, 黒田 和明, 黒柳 幸子, 小泉 宏之, 洪 鋒雷, 郡 和範, 穀山 渉, 苔山 圭以子, 古在 由秀, 小嶌 康史, 固武 慶, 小林 史歩, 権藤 里奈, 西條 統之, 齊藤 遼, 阪上 雅昭, 阪田 紫帆里, 佐合 紀親, 佐々木 節, 佐藤 孝, 柴田 大, 柴田 和憲, 正田 亜八香, 真貝 寿明, 末正 有, 杉山 直, 鈴木 理恵子, 諏訪 雄大, 宗宮 健太郎, 祖谷 元, 高野 忠, 高橋 走, 高橋 慶太郎, 高橋 弘毅, 高橋 史宜, 高橋 龍一, 高橋 竜太郎, 高森 昭光, 田越 秀行, 田代 寛之, 田中 伸幸, 谷口 敬介, 樽家 篤史, 千葉 剛, 陳 たん, 辻川 信二, 常定 芳基, 豊嶋 守生, 鳥居 泰男, 中尾 憲一, 中澤 知洋, 中須賀 真一, 中野 寛之, 長野 重夫, 中村 康二, 中山 宜典, 西澤 篤志, 西田 恵里奈, 西山 和孝, 丹羽 佳人, 能見 大河, 橋本 樹明, 端山 和大, 原田 知広, 疋田 渉, 姫本 宣朗, 平林 久, 平松 尚志, 福嶋 美津広, 藤田 龍一, 藤本 眞克, 二間瀬 敏史, 細川 瑞彦, 堀澤 秀之, 前田 恵一, 松原 英雄, 松本 伸之, 道村 唯太, 宮川 治, 宮本 雲平, 三代木 伸二, 向山 信治, 森澤 理之, 森本 睦子, 森脇 成典, 八木 絢外, 山川 宏, 山崎 利孝, 山元 一広, 吉田 至順, 吉野 泰造, 柳 哲文, 若林 野花

    日本物理学会講演概要集 69.2.1 49 2014

    Publisher: 一般社団法人 日本物理学会

    DOI: 10.11316/jpsgaiyo.69.2.1.0_49_1  

    eISSN: 2189-0803

  13. Counter effects of meridional flows and magnetic fields in stationary axisymmetric self-gravitating barotropes under the ideal MHD approximation: clear examples - toroidal configurations Peer-reviewed

    Kotaro Fujisawa, Rohta Takahashi, Shijun Yoshida, Yoshiharu Eriguchi

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 431 (2) 1453-1469 2013/05

    DOI: 10.1093/mnras/stt275  

    ISSN: 0035-8711

  14. New solutions of charged regular black holes and their stability Peer-reviewed

    Nami Uchikata, Shijun Yoshida, Toshifumi Futamase

    PHYSICAL REVIEW D 86 (8) 084025 2012/10

    DOI: 10.1103/PhysRevD.86.084025  

    ISSN: 1550-7998

  15. Stably stratified magnetized stars in general relativity Peer-reviewed

    Shijun Yoshida, Kenta Kiuchi, Masaru Shibata

    PHYSICAL REVIEW D 86 (4) 044012 2012/08

    DOI: 10.1103/PhysRevD.86.044012  

    ISSN: 2470-0010

    eISSN: 2470-0029

  16. Equilibrium states of magnetized disc-central compact object systems

    Kotaro Fujisawa, Rohta Takahashi, Shijun Yoshida, Yoshiharu Eriguchi

    RESCEU Symposium on General Relativity and Gravitation, JGRG 22 111342 2012

  17. Nonaxisymmetric instabilities of neutron star with toroidal magnetic fields Peer-reviewed

    K. Kiuchi, S. Yoshida, Andm. Shibata

    ASTRONOMY & ASTROPHYSICS 532 A30 2011/08

    DOI: 10.1051/0004-6361/201016242  

    ISSN: 0004-6361

  18. The Japanese space gravitational wave antenna: DECIGO Peer-reviewed

    Seiji Kawamura, Masaki Ando, Naoki Seto, Shuichi Sato, Takashi Nakamura, Kimio Tsubono, Nobuyuki Kanda, Takahiro Tanaka, Jun'ichi Yokoyama, Ikkoh Funaki, Kenji Numata, Kunihito Ioka, Takeshi Takashima, Kazuhiro Agatsuma, Tomotada Akutsu, Koh-suke Aoyanagi, Koji Arai, Akito Araya, Hideki Asada, Yoichi Aso, Dan Chen, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Kiwamu Izumi, Isao Kawano, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Sachiko Kuroyanagi, Kei-ichi Maeda, Hideo Matsuhara, Nobuyuki Matsumoto, Yuta Michimura, Osamu Miyakawa, Umpei Miyamoto, Shinji Miyoki, Mutsuko Y. Morimoto, Toshiyuki Morisawa, Shigenori Moriwaki, Shinji Mukohyama, Mitsuru Musha, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Kazuhiro Nakazawa, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Kenshi Okada, Norio Okada, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Ryo Saito, Masaaki Sakagami, Shin-ichiro Sakai, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Ayaka Shoda, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Nobuyuki Tanaka, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Ken-ichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Kent Yagi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino, Ke-Xun Sun

    CLASSICAL AND QUANTUM GRAVITY 28 (9) 094011 2011/05

    DOI: 10.1088/0264-9381/28/9/094011  

    ISSN: 0264-9381

    eISSN: 1361-6382

  19. Quasinormal modes of a massless charged scalar field on a small Reissner-Nordstrom-anti-de Sitter black hole Peer-reviewed

    Nami Uchikata, Shijun Yoshida

    PHYSICAL REVIEW D 83 (6) 064020 2011/03

    DOI: 10.1103/PhysRevD.83.064020  

    ISSN: 2470-0010

    eISSN: 2470-0029

  20. Stationary and axisymmetric magnetized equilibria of stars and winds Peer-reviewed

    Shin Yoshida, Kotaro Fujisawa, Yoshiharu Eriguchi, Shijun Yoshida, Rohta Takahashi

    ADVANCES IN PLASMA ASTROPHYSICS (274) 437-440 2011

    DOI: 10.1017/S1743921311007435  

    ISSN: 1743-9213

  21. DECIGO and DECIGO pathfinder Peer-reviewed

    Ando Masaki, Kawamura Seiji, Seto Naoki, Sato Shuichi, Nakamura Takashi, Tsubono Kimio, Takashima Takeshi, Funaki Ikkoh, Numata Kenji, Kanda Nobuyuki, Tanaka Takahiro, Ioka Kunihito, Agatsuma Kazuhiro, Aoyanagi Koh-suke, Arai Koji, Araya Akito, Asada Hideki, Aso Yoichi, Chiba Takeshi, Ebisuzaki Toshikazu, Ejiri Yumiko, Enoki Motohiro, Eriguchi Yoshiharu, Fujimoto Masa-Katsu, Fujita Ryuichi, Fukushima Mitsuhiro, Futamase Toshifumi, Harada Tomohiro, Hashimoto Tatsuaki, Hayama Kazuhiro, Hikida Wataru, Himemoto Yoshiaki, Hirabayashi Hisashi, Hiramatsu Takashi, Hong Feng-Lei, Horisawa Hideyuki, Hosokawa Mizuhiko, Ichiki Kiyotomo, Ikegami Takeshi, Inoue Kaiki T, Ishidoshiro Koji, Ishihara Hideki, Ishikawa Takehiko, Ishizaki Hideharu, Ito Hiroyuki, Itoh Yousuke, Izumi Kiwamu, Kawano Isao, Kawashima Nobuki, Kawazoe Fumiko, Kishimoto Naoko, Kiuchi Kenta, Kobayashi Shiho, Kohri Kazunori, Koizumi Hiroyuki, Kojima Yasufumi, Kokeyama Keiko, Kokuyama Wataru, Kotake Kei, Kozai Yoshihide, Kunimori Hiroo, Kuninaka Hitoshi, Kuroda Kazuaki, Maeda Kei-ichi, Matsuhara Hideo, Mino Yasushi, Miyakawa Osamu, Miyamoto Umpei, Miyoki Shinji, Morimoto Mutsuko Y, Morisawa Toshiyuki, Moriwaki Shigenori, Mukohyama Shinji, Musha Mitsuru, Nagano Shigeo, Naito Isao, Nakamura Kouji, Nakamura Masahiro, Nakano Hiroyuki, Nakao Kenichi, Nakasuka Shinichi, Nakayama Yoshinori, Nakazawa Kazuhiro, Nishida Erina, Nishiyama Kazutaka, Nishizawa Atsushi, Niwa Yoshito, Noumi Taiga, Obuchi Yoshiyuki, Ohashi Masatake, Ohishi Naoko, Ohkawa Masashi, Okada Kenshi, Okada Norio, Oohara Kenichi, Sago Norichika, Saijo Motoyuki, Saito Ryo, Sakagami Masaaki, Sakai Shin-ichiro, Sakata Shihori, Sasaki Misao, Sato Takashi, Shibata Masaru, Shinkai Hisaaki, Somiya Kentaro, Sotani Hajime, Sugiyama Naoshi, Suwa Yudai, Suzuki Rieko, Tagoshi Hideyuki, Takahashi Fuminobu, Takahashi Kakeru, Takahashi Keitaro, Takahashi Ryutaro, Takahashi Ryuichi, Takahashi Tadayuki, Takahashi Hirotaka, Akiteru Takamori, Takano Tadashi, Taniguchi Keisuke, Taruya Atsushi, Tashiro Hiroyuki, Torii Yasuo, Toyoshima Morio, Tsujikawa Shinji, Tsunesada Yoshiki, Ueda Akitoshi, Ueda Ken-ichi, Utashima Masayoshi, Wakabayashi Yaka, Yagi Kent, Yamakawa Hiroshi, Yamamoto Kazuhiro, Yamazaki Toshitaka, Yokoyama Jun'ichi, Yoo Chul-Moon, Yoshida Shijun, Yoshino Taizoh, Sun Ken-Xun

    CLASSICAL AND QUANTUM GRAVITY 27 (8) 2010/04/21

    DOI: 10.1088/0264-9381/27/8/084010  

    ISSN: 0264-9381

    eISSN: 1361-6382

  22. Quasinormal modes of Kerr-de Sitter black holes Peer-reviewed

    Shijun Yoshida, Nami Uchikata, Toshifumi Futamase

    PHYSICAL REVIEW D 81 (4) 044005 2010/02

    DOI: 10.1103/PhysRevD.81.044005  

    ISSN: 2470-0010

    eISSN: 2470-0029

  23. Non-Axisymmetric instabilities of toroidal magnetic field in neutron stars

    Kenta Kiuchi, Shijun Yoshida, Masaru Shibata

    Proceedings of the 20th Workshop on General Relativity and Gravitation in Japan, JGRG 2010 241-245 2010

  24. Scalar perturbations of Kerr-AdS black holes Peer-reviewed

    Nami Uchikata, Shijun Yoshida, Toshifumi Futamase

    PHYSICAL REVIEW D 80 (8) 084020 2009/10

    DOI: 10.1103/PhysRevD.80.084020  

    ISSN: 2470-0010

    eISSN: 2470-0029

  25. EQUILIBRIUM CONFIGURATIONS OF RELATIVISTIC STARS WITH PURELY TOROIDAL MAGNETIC FIELDS: EFFECTS OF REALISTIC EQUATIONS OF STATE Peer-reviewed

    Kenta Kiuchi, Kei Kotake, Shijun Yoshida

    ASTROPHYSICAL JOURNAL 698 (1) 541-557 2009/06

    DOI: 10.1088/0004-637X/698/1/541  

    ISSN: 0004-637X

    eISSN: 1538-4357

  26. DECIGO pathfinder Peer-reviewed

    Masaki Ando, Seiji Kawamura, Shuichi Sato, Takashi Nakamura, Kimio Tsubono, Akito Araya, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Shigenori Moriwaki, Mitsuru Musha, Kazuhiro Nakazawa, Kenji Numata, Shin-ichiro Sakai, Naoki Seto, Takeshi Takashima, Takahiro Tanaka, Kazuhiro Agatsuma, Koh-suke Aoyanagi, Koji Arai, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Kei-ichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y. Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shinji Mukohyama, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Norio Okada, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Ken-ichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino

    CLASSICAL AND QUANTUM GRAVITY 26 (9) 2009/05

    DOI: 10.1088/0264-9381/26/9/094019  

    ISSN: 0264-9381

    eISSN: 1361-6382

  27. DECIGO: The Japanese space gravitational wave antenna Peer-reviewed

    Shuichi Sato, Seiji Kawamura, Masaki Ando, Takashi Nakamura, Kimio Tsubono, Akito Araya, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Shigenori Moriwaki, Mitsuru Musha, Kazuhiro Nakazawa, Kenji Numata, Shin-ichiro Sakai, Naoki Seto, Takeshi Takashima, Takahiro Tanaka, Kazuhiro Agatsuma, Koh-suke Aoyanagi, Koji Arai, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Kei-ichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shinji Mukohyama, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Norio Okada, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Ken-ichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino

    Journal of Physics: Conference Series 154 012040-012040 2009/03/01

    Publisher: IOP Publishing

    DOI: 10.1088/1742-6596/154/1/012040  

    eISSN: 1742-6596

  28. Relativistic stars with purely toroidal magnetic fields Peer-reviewed

    Kenta Kiuchi, Shijun Yoshida

    PHYSICAL REVIEW D 78 (4) 044045 2008/08

    DOI: 10.1103/PhysRevD.78.044045  

    ISSN: 2470-0010

    eISSN: 2470-0029

  29. Evolution of neutron stars with toroidal magnetic fields: Axisymmetric simulation in full general relativity Peer-reviewed

    Kenta Kiuchi, Masaru Shibata, Shijun Yoshida

    PHYSICAL REVIEW D 78 (2) 024029 2008/07

    DOI: 10.1103/PhysRevD.78.024029  

    ISSN: 1550-7998

  30. DECIGO Pathfinder Peer-reviewed

    Ando Masaki, Kawamura Seiji, Nakamura Takashi, Tsubono Kimio, Tanaka Takahiro, Funaki Ikkoh, Seto Naoki, Numata Kenji, Sato Shuichia, Ioka Kunihito, Kanda Nobuyuki, Takashima Takeshi, Agatsuma Kazuhiro, Akutsu Tomotada, Akutsu Tomomi, Aoyanagi Koh-suke, Arai Koji, Arase Yuta, Araya Akito, Asada Hideki, Aso Yoichi, Chiba Takeshi, Ebisuzaki Toshikazu, Enoki Motohiro, Eriguchi Yoshiharu, Fujimoto Masa-Katsu, Fujita Ryuichi, Fukushima Mitsuhiro, Futamase Toshifumi, Ganzu Katsuhiko, Harada Tomohiro, Hashimoto Tatsuaki, Hayama Kazuhiro, Hikida Wataru, Himemoto Yoshiaki, Hirabayashi Hisashi, Hiramatsu Takashi, Hong Feng-Lei, Horisawa Hideyuki, Hosokawa Mizuhiko, Ichiki Kiyotomo, Ikegami Takeshi, Inoue Kaiki T, Ishidoshiro Koji, Ishihara Hideki, Ishikawa Takehiko, Ishizaki Hideharu, Ito Hiroyuki, Itoh Yousuke, Kamagasako Shogo, Kawashima Nobuki, Kawazoe Fumiko, Kirihara Hiroyuki, Kishimoto Naoko, Kiuche Kenta, Kobayashi Shiho, Kohri Kazunori, Koizumi Hiroyuki, Kojima Yasufumi, Kokeyama Keiko, Kokuyama Wataru, Kotake Kei, Kozai Yoshihide, Kudoh Hideaki, Kunimori Hiroo, Kuninaka Hitoshi, Kuroda Kazuaki, Maeda Kei-ichi, Matsuhara Hideo, Mino Yasushi, Miyakawa Osamu, Miyoki Shinji, Morimoto Mutsuko Y, Morioka Tomoko, Morisawa Toshiyuki, Moriwaki Shigenori, Mukohyama Shinji, Musha Mitsuru, Nagano Shigeo, Naito Isao, Nakagawa Noriyasu, Nakamura Kouji, Nakano Hiroyuki, Nakao Kenichi, Nakasuka Shinichi, Nakayama Yoshinori, Nishida Erina, Nishiyama Kazutaka, Nishizawa Atsushi, Niwa Yoshito, Ohashi Masatake, Ohishi Naoko, Ohkawa Masashi, Okutomi Akira, Onozato Kouji, Oohara Kenichi, Sago Norichika, Saijo Motoyuki, Sakagami Masaaki, Sakai Shin-ichiro, Sakata Shihori, Sasaki Misao, Sato Takashi, Shibata Masaru, Shinkai Hisaaki, Somiya Kentaro, Sotani Hajime, Sugiyama Naoshi, Suwa Yudai, Tagoshi Hideyuki, Takahashi Kakeru, Takahashi Keitaro, Takahashi Tadayuki, Takahashi Hirotaka, Takahashi Ryuichi, Takahashi Ryutaro, Takamori Akiteru, Takano Tadashi, Taniguchi Keisuke, Taruya Atsushi, Tashiro Hiroyuki, Tokuda Mitsuru, Tokunari Masao, Toyoshima Morio, Tsujikawa Shinji, Tsunesada Yoshiki, Ueda Ken-ichi, Utashima Masayoshi, Yamakawa Hiroshi, Yamamoto Kazuhiro, Yamazaki Toshitaka, Yokoyama Jun'ichi, Yoo Chul-Moon, Yoshida Shijun, Yoshino Taizoh

    TAUP2007: TENTH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS 120 2008

    DOI: 10.1088/1742-6596/120/3/032005  

    ISSN: 1742-6588

  31. The Japanese Space Gravitational Wave Antenna; DECIGO

    Seiji Kawamura, Masaki Ando, Takashi Nakamura, Kimio Tsubono, Takahiro Tanaka, Ikkoh Funaki, Naoki Seto, Kenji Numata, Shuichi Sato, Kunihito Ioka, Nobuyuki Kanda, Takeshi Takashima, Kazuhiro Agatsuma, Tomotada Akutsu, Tomomi Akutsu, Koh-suke Aoyanagi, Koji Arai, Yuta Arase, Akito Araya, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Motohiro Enoki, Yoshiharu Eriguchi, Masa-Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng-Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Shogo Kamagasako, Nobuki Kawashima, Fumiko Kawazoe, Hiroyuki Kirihara, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Kei-ichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y. Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shigenori Moriwaki, Shinji Mukohyama, Mitsuru Musha, Shigeo Nagano, Isao Naito, Noriyasu Nakagawa, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Akira Okutomi, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shin-ichiro Sakai, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Hideyuki Tagoshi, Kakeru Takahashi, Keitaro Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Ryuichi Takahashi, Ryutaro Takahashi, Akiteru Takamori, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Mitsuru Tokuda, Masao Tokunari, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Ken-ichi Ueda, Masayoshi Utashima, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, Chul-Moon Yoo, Shijun Yoshida, Taizoh Yoshino

    TAUP2007: TENTH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS 120 2008

    DOI: 10.1088/1742-6596/120/3/032004  

    ISSN: 1742-6588

  32. Excitation of g-modes in a proto-neutron star by the standing accretion shock instability Peer-reviewed

    Shijun Yoshida, Naofumi Ohnishi, Shoichi Yamada

    ASTROPHYSICAL JOURNAL 665 (2) 1268-1276 2007/08

    DOI: 10.1086/519303  

    ISSN: 0004-637X

  33. Gravitational radiation from collapsing magnetized dust Peer-reviewed

    Hajime Sotani, Shijun Yoshida, Kostas D. Kokkotas

    PHYSICAL REVIEW D 75 (8) 084015 2007/04

    DOI: 10.1103/PhysRevD.75.084015  

    ISSN: 1550-7998

  34. 21aZH-1 Space Gravitational Wave Antenna DECIGO X (Design, Project)

    Kawamura Seiji

    Meeting Abstracts of the Physical Society of Japan 62.2.1 95 2007

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.62.2.1.0_95_3  

    eISSN: 2189-0803

  35. 21aZH-2 Space Gravitational Wave Antenna DECIGO XII (Path Finder)

    Ando M., Kawamura S., Seto N., Nakamura T., Tsubono K., Tanaka T.

    Meeting Abstracts of the Physical Society of Japan 62.2.1 95 2007

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.62.2.1.0_95_4  

    eISSN: 2189-0803

  36. Twisted-torus equilibrium structures of magnetic fields in magnetized stars Peer-reviewed

    Shijun Yoshida, Shin'ichirou Yoshida, Yoshiharu Eriguchi

    ASTROPHYSICAL JOURNAL 651 (1) 462-474 2006/11

    DOI: 10.1086/507513  

    ISSN: 0004-637X

  37. Classical instability of Kerr-AdS black holes and the issue of final state Peer-reviewed

    Vitor Cardoso, Oscar J. C. Dias, Shijun Yoshida

    PHYSICAL REVIEW D 74 (4) 044008 2006/08

    DOI: 10.1103/PhysRevD.74.044008  

    ISSN: 2470-0010

    eISSN: 2470-0029

  38. Equilibrium configurations of magnetized rotating polytropes: Effects of strong toroidal magnetic fields in addition to poloidal magnetic fields Peer-reviewed

    S Yoshida, Y Eriguchi

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 164 (1) 156-172 2006/05

    DOI: 10.1086/501050  

    ISSN: 0067-0049

  39. The Japanese space gravitational wave antenna - DECIGO Peer-reviewed

    Kawamura Seiji, Nakamura Takashi, Ando Masaki, Seto Naoki, Tsubono Kimio, Numata Kenji, Takahashi Ryuichi, Nagano Shigeo, Ishikawa Takehiko, Musha Mitsuru, Ueda Ken-ichi, Sato Takashi, Hosokawa Mizuhiko, Agatsuma Kazuhiro, Akutsu Tomotada, Aoyanagi Koh-suke, Arai Koji, Araya Akito, Asada Hideki, Aso Yoichi, Chiba Takeshi, Ebisuzaki Toshikazu, Eriguchi Yoshiharu, Fujimoto Masa-Katsu, Fukushima Mitsuhiro, Futamase Toshifumi, Ganzu Katsuhiko, Harada Tomohiro, Hashimoto Tatsuaki, Hayama Kazuhiro, Hikida Wataru, Himemoto Yoshiaki, Hirabayashi Hisashi, Hiramatsu Takashi, Ichiki Kiyotomo, Ikegami Takeshi, Inoue Kaiki T, Ioka Kunihito, Ishidoshiro Koji, Itoh Yousuke, Kamagasako Shogo, Kanda Nobuyuki, Kawashima Nobuki, Kirihara Hiroyuki, Kiuchi Kenta, Kobayashi Shiho, Kohri Kazunori, Kojima Yasufumi, Kokeyama Keiko, Kozai Yoshihide, Kudoh Hideaki, Kunimori Hiroo, Kuroda Kazuaki, Maeda Kei-ichi, Matsuhara Hideo, Mino Yasushi, Miyakawa Osamu, Miyoki Shinji, Mizusawa Hiromi, Morisawa Toshiyuki, Mukohyama Shinji, Naito Isao, Nakagawa Noriyasu, Nakamura Kouji, Nakano Hiroyuki, Nishizawa Atsushi, Niwa Yoshito, Nozawa Choetsu, Ohashi Masatake, Ohishi Naoko, Ohkawa Masashi, Okutomi Akira, Oohara Kenichi, Sago Norichika, Saijo Motoyuki, Sakagami Masaaki, Sakata Shihori, Sasaki Misao, Sato Shuichi, Shibata Masaru, Shinkai Hisaaki, Somiya Kentaro, Sotani Hajime, Sugiyama Naoshi, Tagoshi Hideyuki, Takahashi Tadayuki, Takahashi Hirotaka, Takahashi Ryutaro, Takano Tadashi, Tanaka Takahiro, Taniguchi Keisuke, Taruya Atsushi, Tashiro Hiroyuki, Tokunari Masao, Tsujikawa Shinji, Tsunesada Yoshiki, Yamamoto Kazuhiro, Yamazaki Toshitaka, Yokoyama Jun'ichi, Yoo Chul-Moon, Yoshida Shijun, Yoshino Taizoh

    CLASSICAL AND QUANTUM GRAVITY 23 (8) S125-S131 2006/04/21

    DOI: 10.1088/0264-9381/23/8/S17  

    ISSN: 0264-9381

  40. Classical instability of Kerr-AdS black holes and the issue of final state Peer-reviewed

    Vitor Cardoso, Óscar J. C. Dias, Shijun Yoshida

    Physical Review D - Particles, Fields, Gravitation and Cosmology 74 (4) 2006

    DOI: 10.1103/PhysRevD.74.044008  

    ISSN: 1550-7998 1550-2368

  41. The fate of a five-dimensional rotating black hole via hawking radiation Peer-reviewed

    H Nomura, S Yoshida, M Tanabe, K Maeda

    PROGRESS OF THEORETICAL PHYSICS 114 (3) 707-712 2005/09

    DOI: 10.1143/PTP.114.707  

    ISSN: 0033-068X

  42. Perturbations and absorption cross section of infinite-radius black rings Peer-reviewed

    Vitor Cardoso, Oscar J. C. Dias, Shijun Yoshida

    Physical Review D - Particles, Fields, Gravitation and Cosmology 72 (2) 1-16 2005/07/15

    DOI: 10.1103/PhysRevD.72.024025  

    ISSN: 1550-7998 1550-2368

  43. Superradiant instabilities of rotating black branes and strings Peer-reviewed

    Vitor Cardoso, Shijun Yoshida

    Journal of High Energy Physics 0507 (7) 189-211 2005/07/01

    DOI: 10.1088/1126-6708/2005/07/009  

    ISSN: 1029-8479

  44. Perturbations and absorption cross section of infinite-radius black rings Peer-reviewed

    Cardoso, V, OJC Dias, S Yoshida

    PHYSICAL REVIEW D 72 (2) 24025 2005/07

    DOI: 10.1103/PhysRevD.72.024025  

    ISSN: 2470-0010

    eISSN: 2470-0029

  45. Scalar perturbations of higher dimensional rotating and ultraspinning black holes Peer-reviewed

    Vitor Cardoso, George Siopsis, Shijun Yoshida

    Physical Review D - Particles, Fields, Gravitation and Cosmology 71 (2) 1-24019 2005

    Publisher: American Physical Society

    DOI: 10.1103/PhysRevD.71.024019  

    ISSN: 1550-2368 1550-7998

  46. R-mode oscillations of rapidly rotating barotropic stars in general relativity: analysis by the relativistic Cowling approximation Peer-reviewed

    S Yoshida, S Yoshida, Y Eriguchi

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 356 (1) 217-224 2005/01

    DOI: 10.1111/j.1365-2966.2004.08436.x  

    ISSN: 0035-8711

    eISSN: 1365-2966

  47. Scalar perturbations of higher dimensional rotating and ultraspinning black holes Peer-reviewed

    Cardoso, V, G Siopsis, S Yoshida

    PHYSICAL REVIEW D 71 (2) 024019 2005/01

    DOI: 10.1103/PhysRevD.71.024019  

    ISSN: 2470-0010

    eISSN: 2470-0029

  48. Quasinormal modes and stability of the rotating acoustic black hole: Numerical analysis Peer-reviewed

    Vitor Cardoso, José P. S. Lemos, Shijun Yoshida

    Physical Review D - Particles, Fields, Gravitation and Cosmology 70 (12) 1-124032 2004/12

    DOI: 10.1103/PhysRevD.70.124032  

    ISSN: 0556-2821

  49. Quasinormal modes and stability of the rotating acoustic black hole: Numerical analysis Peer-reviewed

    Cardoso, V, JPS Lemos, S Yoshida

    PHYSICAL REVIEW D 70 (12) 124032 2004/12

    DOI: 10.1103/PhysRevD.70.124032  

    ISSN: 2470-0010

    eISSN: 2470-0029

  50. Black-hole bomb and superradiant instabilities Peer-reviewed

    Cardoso, V, OJC Dias, JPS Lemos, S Yoshida

    PHYSICAL REVIEW D 70 (4) 044039 2004/08

    DOI: 10.1103/PhysRevD.70.044039  

    ISSN: 2470-0010

    eISSN: 2470-0029

  51. Highly damped quasinormal modes of Kerr black holes: A complete numerical investigation Peer-reviewed

    E Berti, Cardoso, V, S Yoshida

    PHYSICAL REVIEW D 69 (12) 124018 2004/06

    DOI: 10.1103/PhysRevD.69.124018  

    ISSN: 2470-0010

    eISSN: 2470-0029

  52. Numerical analysis of quasinormal modes in nearly extremal Schwarzschild-de Sitter spacetimes Peer-reviewed

    S Yoshida, T Futamase

    PHYSICAL REVIEW D 69 (6) 064025 2004/03

    DOI: 10.1103/PhysRevD.69.064025  

    ISSN: 0556-2821

  53. Quasinormal modes of Schwarzschild black holes in four and higher dimensions Peer-reviewed

    Cardoso, V, JPS Lemos, S Yoshida

    PHYSICAL REVIEW D 69 (4) 044004 2004/02

    DOI: 10.1103/PhysRevD.69.044004  

    ISSN: 1550-7998

  54. Quasinormal modes and stability of the rotating acoustic black hole: Numerical analysis Peer-reviewed

    Vitor Cardoso, José P. S. Lemos, Shijun Yoshida

    Physical Review D - Particles, Fields, Gravitation and Cosmology 70 (12) 7 2004

    DOI: 10.1103/PhysRevD.70.124032  

    ISSN: 1550-2368 1550-7998

  55. Rapidly rotating superfluid neutron stars in Newtonian dynamics Peer-reviewed

    S Yoshida, Y Eriguchi

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 347 (2) 575-586 2004/01

    DOI: 10.1111/j.1365-2966.2004.07228.x  

    ISSN: 0035-8711

  56. Electromagnetic radiation from collisions at almost the speed of light: An extremely relativistic charged particle falling into a Schwarzschild black hole Peer-reviewed

    Cardoso, V, JPS Lemos, S Yoshida

    PHYSICAL REVIEW D 68 (8) 084011 2003/10

    DOI: 10.1103/PhysRevD.68.084011  

    ISSN: 2470-0010

    eISSN: 2470-0029

  57. Inertial modes of neutron stars with a superfluid core Peer-reviewed

    S Yoshida, U Lee

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 344 (1) 207-222 2003/09

    DOI: 10.1046/j.1365-8711.2003.06816.x  

    ISSN: 0035-8711

  58. Late-time tails of wave propagation in higher dimensional spacetimes Peer-reviewed

    Cardoso, V, S Yoshida, OJC Dias, JPS Lemos

    PHYSICAL REVIEW D 68 (6) 061503(R) 2003/09

    DOI: 10.1103/PhysRevD.68.061503  

    ISSN: 0556-2821

  59. r-modes in relativistic superfluid stars Peer-reviewed

    S Yoshida, U Lee

    PHYSICAL REVIEW D 67 (12) 124019 2003/06

    DOI: 10.1103/PhysRevD.67.124019  

    ISSN: 0556-2821

  60. Scalar-gravitational perturbations and quasinormal modes in the five dimensional Schwarzschild black hole Peer-reviewed

    Vitor Cardoso, Jose, P.S. Lemos, Shijun Yoshida

    Journal of High Energy Physics 0312 041 2003/03

    DOI: 10.1088/1126-6708/2003/12/041  

  61. r-modes of neutron stars with superfluid cores Peer-reviewed

    U Lee, SJ Yoshida

    ASTROPHYSICAL JOURNAL 586 (1) 403-418 2003/03

    DOI: 10.1086/367617  

    ISSN: 0004-637X

    eISSN: 1538-4357

  62. Nonradial oscillations of neutron stars with a solid crust - Analysis in the relativistic Cowling approximation Peer-reviewed

    S Yoshida, U Lee

    ASTRONOMY & ASTROPHYSICS 395 (1) 201-208 2002/11

    DOI: 10.1051/0004-6361:20021270  

    ISSN: 0004-6361

  63. Relativistic r-modes in slowly rotating neutron stars: Numerical analysis in the cowling approximation Peer-reviewed

    S Yoshida, U Lee

    ASTROPHYSICAL JOURNAL 567 (2) 1112-1120 2002/03

    DOI: 10.1086/338663  

    ISSN: 0004-637X

  64. R-mode instability of slowly rotating nonisentropic relativistic stars Peer-reviewed

    S Yoshida, T Futamase

    PHYSICAL REVIEW D 64 (12) 123001 2001/12

    DOI: 10.1103/PhysRevD.64.123001  

    ISSN: 0556-2821

  65. R-mode oscillations of differentially and rapidly rotating Newtonian polytropic stars Peer-reviewed

    S. Karino, S. Yoshida, Y. Eriguchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology 64 (2) 240031-240039 2001/09/03

    DOI: 10.1103/PhysRevD.64.024003  

    ISSN: 0556-2821

  66. r-modes of slowly rotating nonisentropic relativistic stars Peer-reviewed

    S Yoshida

    ASTROPHYSICAL JOURNAL 558 (1) 263-269 2001/09

    DOI: 10.1086/322275  

    ISSN: 0004-637X

  67. Possible measurement of quintessence and density parameter using strong gravitational lensing events Peer-reviewed

    T Futamase, S Yoshida

    PROGRESS OF THEORETICAL PHYSICS 105 (5) 887-891 2001/05

    DOI: 10.1143/PTP.105.887  

    ISSN: 0033-068X

  68. r-modes of neutron stars with a solid crust Peer-reviewed

    S Yoshida, U Lee

    ASTROPHYSICAL JOURNAL 546 (2) 1121-1125 2001/01

    DOI: 10.1086/318292  

    ISSN: 0004-637X

  69. R-mode oscillations of rapidly rotating Newtonian stars: A new numerical scheme and its application to the spin evolution of neutron stars

    Shigeyuki Karino, Shin'ichirou Yoshida, Shijun Yoshida, Yoshiharu Eriguchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology 62 1-11 2000/10/15

    ISSN: 0556-2821

  70. R-mode oscillations of rapidly rotating Newtonian stars: A new numerical scheme and its application to the spin evolution of neutron stars Peer-reviewed

    S Karino, S Yoshida, S Yoshida, Y Eriguchi

    PHYSICAL REVIEW D 62 (8) 084012 2000/10

    DOI: 10.1103/PhysRevD.62.084012  

    ISSN: 2470-0010

    eISSN: 2470-0029

  71. A numerical study of the r-mode instability of rapidly rotating nascent neutron stars Peer-reviewed

    S Yoshida, S Karino, S Yoshida, Y Eriguchi

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 316 (1) L1-L4 2000/07

    DOI: 10.1046/j.1365-8711.2000.03698.x  

    ISSN: 0035-8711

  72. Rotational modes of nonisentropic stars and the gravitational radiation-driven instability Peer-reviewed

    S Yoshida, U Lee

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 129 (1) 353-366 2000/07

    DOI: 10.1086/313410  

    ISSN: 0067-0049

    eISSN: 1538-4365

  73. Inertial modes of slowly rotating isentropic stars Peer-reviewed

    S Yoshida, U Lee

    ASTROPHYSICAL JOURNAL 529 (2) 997-1010 2000/02

    DOI: 10.1086/308312  

    ISSN: 0004-637X

    eISSN: 1538-4357

  74. Nonaxisymmetric boson stars in Newtonian gravity Peer-reviewed

    S Yoshida, Y Eriguchi

    PHYSICAL REVIEW D 56 (10) 6370-6377 1997/11

    DOI: 10.1103/PhysRevD.56.6370  

    ISSN: 0556-2821

  75. Accuracy of the relativistic Cowling approximation in slowly rotating stars Peer-reviewed

    S Yoshida, Y Kojima

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 289 (1) 117-122 1997/07

    DOI: 10.1093/mnras/289.1.117  

    ISSN: 0035-8711

  76. Rotating boson stars in general relativity Peer-reviewed

    S Yoshida, Y Eriguchi

    PHYSICAL REVIEW D 56 (2) 762-771 1997/07

    DOI: 10.1103/PhysRevD.56.762  

    ISSN: 0556-2821

  77. New static axisymmetric and nonvacuum solutions in general relativity: Equilibrium solutions of boson stars Peer-reviewed

    S Yoshida, Y Eriguchi

    PHYSICAL REVIEW D 55 (4) 1994-2001 1997/02

    DOI: 10.1103/PhysRevD.55.1994  

    ISSN: 0556-2821

  78. QUASI-NORMAL MODES OF BOSON STARS Peer-reviewed

    S YOSHIDA, Y ERIGUCHI, T FUTAMASE

    PHYSICAL REVIEW D 50 (10) 6235-6246 1994/11

    DOI: 10.1103/PhysRevD.50.6235  

    ISSN: 0556-2821

  79. NONRADIAL PULSATION OF A BOSON STAR .1. FORMULATION Peer-reviewed

    Y KOJIMA, S YOSHIDA, T FUTAMASE

    PROGRESS OF THEORETICAL PHYSICS 86 (2) 401-410 1991/08

    DOI: 10.1143/PTP.86.401  

    ISSN: 0033-068X

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Misc. 9

  1. 13pSR-2 New solutions of charged regular black holes and their stability

    Uchikata Nami, Yoshida Shijun, Futamase Toshifumi

    Meeting abstracts of the Physical Society of Japan 67 (2) 116-116 2012/08/24

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  2. 24pGJ-6 Space Gavitational-Wave Antenna DECIGO (36) : DECIGO/DPF

    Ando Masaki

    Meeting abstracts of the Physical Society of Japan 67 (1) 126-126 2012/03/05

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  3. 28aGS-1 Space Gravitational Wave Antenna DECIGO (30) : Design, Project

    Kawamura Seiji

    Meeting Abstracts of the Physical Society of Japan 66.1.1 124 2011

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.66.1.1.0_124_3  

    eISSN: 2189-0803

  4. 13pSH-1 Space Gravitational Wave Antenna DECIGO (27) : Design, Project

    Kawamura Seiji

    Meeting Abstracts of the Physical Society of Japan 65.2.1 91 2010

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.65.2.1.0_91_4  

    eISSN: 2189-0803

  5. 21aBH-1 Space Gravitational Wave Antenna DECIGO (24) : Design, Project

    Kawamura Seiji

    Meeting Abstracts of the Physical Society of Japan 65.1.1 108 2010

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.65.1.1.0_108_3  

    eISSN: 2189-0803

  6. 30pSC-1 Space Gravitational Wave Antenna DECIGO (17) : Design, Project

    Kawamura Seiji

    Meeting Abstracts of the Physical Society of Japan 64.1.1 100 2009

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.64.1.1.0_100_4  

    eISSN: 2189-0803

  7. 10aSE-4 Space Gravitational Wave Antenna DECIGO (20) : Design, Project

    Kawamura Seiji

    Meeting Abstracts of the Physical Society of Japan 64.2.1 32 2009

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.64.2.1.0_32_4  

    eISSN: 2189-0803

  8. 25pZW-6 Space Gravitational Wave Antenna DECIGO XIII : Overview, Roadmap, Path Finder

    Ando M., Kawamura S., Nakamura T., Tsubono K., Tanaka T., Seto N.

    Meeting Abstracts of the Physical Society of Japan 63.1.1 116 2008

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.63.1.1.0_116_2  

    eISSN: 2189-0803

  9. 23aSF-1 Space Gravitational Wave Antenna DECIGO XV : Overview, Roadmap, Path Finder

    Ando M., Kawamura S., Seto N., Tanaka T., Nakamura T., Tsubono K.

    Meeting Abstracts of the Physical Society of Japan 63.2.1 91 2008

    Publisher: The Physical Society of Japan

    DOI: 10.11316/jpsgaiyo.63.2.1.0_91_1  

    eISSN: 2189-0803

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Research Projects 4

  1. A new approach for stability analysis of magnetized stars

    Yoshida Shijun

    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

    2018/04/01 - 2021/03/31

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    The formulation for analyzing stability of magnetized stars are obtained. The formulation is based on a variational principle, which can be applied to a numerical approach with the finite element method. The construction of the numerical code for examining stabilities of magnetized stars is developed, although it is not finished yet. Equilibrium states of magnetized stars, which are required for examining their stability, are studied. Main results are summarized as follows: (i) Stars containing magnetic fields whose toroidal components are much larger than the poloidal ones in general relativity are obtained. (ii) Considering general magnetic field structures, we obtain magnetized stars within the framework of general relativity. (iii) Magnetized stars surrounded by plasma are investigated. (iv) Effects of the surface current on the stellar surface on the structure of the star are studied.

  2. Oscillations and stability of magnetized neutron stars

    YOSHIDA Shijun

    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

    2012/04/01 - 2015/03/31

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    Taking account of effects of the stable stratification, which stabilize the magnetic buoyancy instability, I formulate the master equations for constructing relativistic magnetized stars and obtain particular models numerically. Within the framework of Newtonian dynamics, pulsation equations for stationary axisymmetric stars with general configurations of magnetic fields are derived. With this formalism, I obtain magnetic oscillation modes for stars with purely poloidal magnetic fields. Those magnetic modes include unstable modes. For the cases of stars with purely toroidal magnetic fields, effects of magnetic fields on the oscillation modes that exist in the limit of non-magnetized stars are investigated. The properties of electro magnetic fields in strong gravitational fields are also invesigated.

  3. Oscillations and stability of equilibrium states of magnetized neutron stars

    YOSHIDA Shijun

    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

    2007 - 2008

  4. 超流動性を考慮した回転中性子星の平衡状態及びその振動と安定性

    吉田 至順

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究(B)

    Institution: 早稲田大学

    2005 - 2006

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    1.回転磁場星の平衡解 本研究課題は超流動回転中性子星に関するものであるが、回転している超流動中性子と磁場の相互作用は超流動中性子星と関連した非常に興味深い問題である。そこで、まず、常流体星に対する磁場の効果の解析を行うために、回転磁場星を求めるための数値コードの開発を行った。これまでの研究では、磁場や流れ場に強い仮定を置いた解析のみが行われていたが、本研究では、これを一般の軸対称定常の場合に拡張する事に成功した。原理的には、磁場と流れ場を決める任意関数を与えることで、任意の磁場形状、流れ場を持つ回転星の平衡解を求めることができるようになった。 得られた成果は、子午面内に流れがない場合に、学術雑誌および日本天文学会2006年度秋季年会において、発表済である。また、子午面内に流れがある場合の結果は、Physical Review D誌に投稿済である。 2.相対論的な回転磁場星の平衡解 1.で行った解析は、ニュートン力学によるものであったが、中性子星を正確に扱うためには、一般相対論による解析が不可欠である。そこで、一般相対論での磁場星の平衡解を得るための定式化を行った。相対論においては、磁場中性子星を扱うための座標条件を決定しなければならないという難点があるが、本研究ではディラックゲージとマキシマルスライシングと呼ばれる条件を課すことで、定式化行った。得られた式を解くための数値コードは、これから開発する。 3.磁場星の安定性解析 1.で求めた回転磁場星の安定性を解析するために、線形摂動解析のための定式化及び固有解を求めるための数値コードの開発を行っている。今のところ数値コードは完成していないが、近い将来、完成させる予定である。数値コード完成後は、これまでほとんど解明されていない磁場星の安定性について、広範囲な解析を行い、磁場星の安定性について、さまざまな性質を明らかにする。

Teaching Experience 3

  1. 力学演習I 東北大学

  2. Exercise in Electromagnetism I Tohoku University

  3. Exercise in Mechanics I Tohoku University