惑星分光観測衛星プロジェクトチーム
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  2. 前田 良知

前田 良知

マエダ ヨシトモ  (Yoshitomo Maeda)

基本情報

所属
国立研究開発法人宇宙航空研究開発機構 宇宙科学研究所 助教
総合研究大学院大学 宇宙観測科学講座 飛翔体天文学分野 助教
学位
博士(理学)(1998年3月 京都大学)
修士(理学)(1995年3月 京都大学)
研究者番号
80342624
ORCID ID
 https://orcid.org/0000-0002-9099-5755
J-GLOBAL ID
202001011170717781
researchmap会員ID
R000011919

論文

 214
  • M. Aoyagi, R.G. Bose, S. Chun, E. Gau, K. Hu, K. Ishiwata, N.K. Iyer, F. Kislat, M. Kiss, K. Klepper, H. Krawczynski, L. Lisalda, Y. Maeda, F. af Malmborg, H. Matsumoto, A. Miyamoto, T. Miyazawa, M. Pearce, B.F. Rauch, N. Rodriguez Cavero, S. Spooner, H. Takahashi, Y. Uchida, A.T. West, K. Wimalasena, M. Yoshimoto
    Astroparticle Physics 158 102944-102944 2024年6月  査読有り
  • Mikio Morii, Yoshitomo Maeda, Hisamitsu Awaki, Kouichi Hagino, Manabu Ishida, Koji Mori
    Publications of the Astronomical Society of Japan 2024年2月9日  査読有り
    Abstract We develop a new deconvolution method to recover the precise Crab Nebula image taken by the Hitomi HXT, suppressing the artifact due to the bright Crab pulsar. We extend the Richardson–Lucy method, introducing two components corresponding to the nebula and pulsar with regularization for smoothness and flux, respectively, and performing simultaneous deconvolution of multi-pulse-phase images. The structures, including the torus and jets, seen in the deconvolved nebula image at the lowest energy band of 3.6–15 keV appear consistent with those identified in the high-resolution Chandra X-ray image. Above 15 keV, we confirm NuSTAR’s findings that the nebula size decreases in higher energy bands. We find that the north-east side of the nebula is fainter in higher energy bands. Our deconvolution method is applicable for any telescope images of faint diffuse objects containing a bright point source.
  • Asca Miyamoto, Yasuharu Sugawara, Yoshitomo Maeda, Manabu Ishida, Kenji Hamaguchi, Michael Corcoran, Christopher M P Russell, Anthony F J Moffat
    Monthly Notices of the Royal Astronomical Society 527(3) 7121-7135 2023年11月27日  査読有り
    ABSTRACT We analyse the XMM–Newton RGS spectra of Wolf–Rayet (WR) 140, an archetype long-period eccentric WR+O colliding wind binary. We evaluate the spectra of O and Fe emission lines and find that the plasmas emitting these lines have the largest approaching velocities with the largest velocity dispersions between phases 0.935 and 0.968 where the inferior conjunction of the O star occurs. This behaviour is the same as that of the Ne line-emission plasma presented in our previous paper. We perform a diagnosis of the electron number density ne using the He-like triplet lines of O and Ne-like Fe–L lines. The former results in a conservative upper limit of ne ≲ 1010–1012 cm−3 on the O line-emission site, while the latter cannot impose any constraint on the Fe line-emission site because of statistical limitations. We calculate the line-of-sight velocity and its dispersion separately along the shock cone. By comparing the observed and calculated line-of-sight velocities, we update the distance of the Ne line-emission site from the stagnation point. By assuming radiative cooling of the Ne line-emission plasma using the observed temperature and the local stellar wind density, we estimate that the line-emission site extends along the shock cone by at most ±58 per cent (phase 0.816) of the distance from the stagnation point. In this framework, the excess of the observed velocity dispersion over that calculated is ascribed to turbulence in the hot-shocked plasma at earlier orbital phases of 0.816, 0.912, and 0.935, with the largest velocity dispersion of 340-630 km s−1 at phase 0.912.
  • Haruki Kuramoto, Hironori Matsumoto, Hisamitsu Awaki, Richard Bose, Dana Braun, Sohee Chun, Gianluigi De Geronimo, Eric A. Wulf, Manel Errando, Yasushi Fukazawa, Akihiro Furuzawa, Thomas Gadson, Ephraim Gau, Victor Guarino, Shuichi Gunji, Keon Harmon, Scott Heatwole, Arman Hossen, Kazunori Ishibashi, Manabu Ishida, Nirmal Kumar Iyer, Wataru Kamogawa, Fabian Kislat, Mózsi Kiss, Henric Krawczynski, James Lanzi, Lindsey Lisalda, Yoshitomo Maeda, Asuka Miyamoto, Takuya Miyazawa, Takashi Okajima, Mark Pearce, Zachary Peterson, Brian Rauch, Nicole Rodriguez Cavero, Felix Ryde, Garry Simburger, Sean Spooner, Theodor-Adrian Stana, David Stuchlik, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Yuusuke Uchida, Andrew West
    Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI 2023年10月5日  
  • Nirmal Iyer, M. Kiss, Mark Pearce, T.-A. Stana, H. Awaki, R.G. Bose, A. Dasgupta, G. De Geronimo, Ephraim Gau, T. Hakamata, M. Ishida, K. Ishiwata, W. Kamogawa, F. Kislat, T. Kitaguchi, Henric Krawczynski, Lindsey Lisalda, Y. Maeda, H. Matsumoto, A. Miyamoto, Takuya Miyazawa, T. Mizuno, Brian Rauch, Nicole Rodriguez Cavero, N. Sakamoto, J. Sato, S. Spooner, Hiromitsu Takahashi, M. Takeo, T. Tamagawa, Y. Uchida, Andrew West, Kasun Wimalasena, M. Yoshimoto
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1048 167975-167975 2023年3月  査読有り
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MISC

 37
  • 高橋, 弘充, ABARR, Quin, 青柳, 美緒, 朝倉, 一統, 粟木, 久光, BARING, Matthew, BOSE, Richard, BRAUN, Dana, DE, GERONIMO Gianluigi, DOWKNOTT, Paul, ELLIOT, John, 榎戸, 輝揚, ERRAND, Manel, 深沢, 泰司, 古澤, 彰浩, GADSON, Thomas, GAU, Epharaim, GUARINO, Victor, 郡司, 修一, 袴田, 知宏, 萩原, 涼太, HALL, Kenny, 花岡, 真帆, HARMON, Keon, 服部, 兼吾, 林田, 清, HEATWOLE, Scott, HOSSEN, Arman, 井出, 峻太郎, 今村, 竜太, 今里, 郁弥, 今澤, 遼, 石橋, 和紀, 石田, 学, 石倉, 彩美, 石渡, 幸太, IYER, Nirmal Kumar, KISLAT, Fabian, MOZSI, Kiss, 亀谷, 紀香, 鴨川, 航, 北口, 貴雄, KOTSIFAKIS, David, KRAWCZYNSK, Henric, LANZI, James, LISALDA, Lindsey, 前田, 良知, 松下, 友亮, 眞武, 寛人, 松本, 浩典, 峯田, 大晴, 宮本, 明日香, 宮澤, 拓也, 水野, 恒史, 中庭, 望, 野田, 博文, 大出, 優一, 岡島, 崇, 岡崎, 貴樹, PASTRANI, Izabella, PEARCE, Mark, PETERSON, Zachary, PUDY, Chris, RAUCH, Brian, RYDE, Felix, 斎藤, 芳隆, 佐久間, 翔太郎, 佐藤, 淳矢, 澤上, 拳明, SHREEVES, Chris, SIMBURGER, Garry, SNOW, Carl, SPOONER, Sean, STANA, Theodor-Adrian, STUCHLIK, David, 鈴木, 瞳, 武尾, 舞, 玉川, 徹, 田村, 啓輔, 常深, 博, 内田, 和海, 内田, 悠介, VINCENT, Brett, WEST, Andrew, WULF, Eric, 米山, 友景, 善本, 真梨那, TAKAHASHI, Hiromitsu, AOYAGI, Mio, ASAKURA, Kazunori, AWAKI, Hisamitsu, ENOTO, Teruaki, FUKAZAWA, Yasushi, FURUZAWA, Akihiro, GUNJI, Shuichi, HAKAMADA, Tomohiro, HAGIWARA, Ryota, HANAOKA, Maho, HATTORI, Kengo, HAYASHIDA, Kiyoshi, IDE, Shuntaro, IMAMURA, Ryuta, IMAZATO, Fumiya, IMAZAWA, Ryo, ISHIBASHI, Kazunori, ISHIDA, Manabu, ISHIKURA, Ayami, ISHIWATARI, Kota, MOZI, Kiss, KAMETANI, Norika, KAMOGAWA, Wataru, KITAGUCHI, Takao, KOTSUIFAKIS, David, KRAWCZYNSKI, Henric, MAEDA, Yoshitomo, MATSUSHITA, Yusuke, MATAKE, Hiroto, MATSUMOTO, Hironori, MINETA, Taisei, MIYAMOTO, Asuka, MIYAZAWA, Takuya, MIZUNO, Tsunefumi, NAKANIWA, Nozomi, NODA, Hirofumi, ODE, Yuichi, OKAJIMA, Takashi, OKAZAKI, Kouki, PURDY, Chris, RAUNCH, Brian, SAITO, Yoshitaka, SAKUMA, Shotaro, SATO, Junya, SAWAGAMI, Kenmei, SUZUKI, Hitomi, TAKEO, Mai, TAMAGAWA, Toru, TAMURA, Keisuke, TSUNEMI, Hiroshi, UCHIDA, Nagomi, UCHIDA, Yuusuke, YONEYAMA, Tomokage, YOSHIMOTO, Marina
    大気球シンポジウム: 2022年度 = Balloon Symposium: 2022 2022年11月  
    大気球シンポジウム 2022年度（2022年11月7-8日. ハイブリッド開催（JAXA相模原キャンパス& オンライン)) Balloon Symposium 2022 (November 7-8, 2022. Hybrid(in-person & online) Conference (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 著者人数: 87名 資料番号: SA6000177030 レポート番号: isas22-sbs-030
  • 佐藤浩介, 大橋隆哉, 石崎欣尚, 江副祐一郎, 藤田裕, 山崎典子, 石田学, 前田良知, 満田和久, 中島裕貴, 三石郁之, 田原譲, 藤本龍一, 鶴剛, 太田直美, 大里健, 永井大輔, 吉川耕司, 河合誠之, 松下恭子, 山田真也, 一戸悠人, 内田悠介
    日本天文学会年会講演予稿集 2021 2021年  
  • 佐藤浩介, 山崎典子, 石田学, 前田良知, 満田和久, 三石郁之, 田原譲, 石崎欣尚, 江副祐一郎, 藤田裕, 藤本龍一, 鶴剛, 大里健, 太田直美, 永井大輔, 吉川耕司, 河合誠之, 松下恭子, 山田真也, 一戸悠人, 内田悠介, 中島裕貴, 中島裕貴
    日本天文学会年会講演予稿集 2021 2021年  
  • 野田博文, 林田清, 林田清, 冨田洋, 森浩二, 森浩二, 田中孝明, 内田裕之, 鶴剛, 中嶋大, 松本浩典, 岡島崇, 石田学, 前田良知, 村上弘志, 山内誠, 廿日出勇, 信川正順, 信川久実子, 幸村孝由, 萩野浩一, 小林翔悟, 平賀純子, 内山秀樹, 山岡和貴, 尾崎正伸, 堂谷忠靖, 常深博
    日本物理学会講演概要集(CD-ROM) 75(1) 2020年  
  • 佐藤浩介, 内田悠介, 大橋隆哉, 石崎欣尚, 江副祐一郎, 山田真也, 山崎典子, 中島裕貴, 満田和久, 石田学, 前田良知, 三石郁之, 田原譲, 藤本龍一, 鶴剛, 太田直美, 大里健, 中島真也, 藤田裕, 永井大輔, 吉川耕司, 河合誠之, 松下恭子, 一戸悠人
    日本天文学会年会講演予稿集 2020 2020年  
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講演・口頭発表等

 5
  • 前田良知
    Optics & Photonics Japan 2023シンポジウム 『X線・EUV結像光学のフロンティア』 2023年11月29日  招待有り
  • Maeda, Yoshitomo, Morii, Mikio, Ishida, Manabu, Hisamitsu, Awaki, Hagino, Koichi
    44th COSPAR Scientific Assembly 2022年
  • 前田良知, the XRISM PV, Eta Carinae team
    nuclear burning in massive stars – towards the formation of binary black holes – 2021年7月28日
  • Yoshitomo Maeda, Quincy Abarr, Hisamitsu Awaki, Matthew Baring, Richard Bose, Dana Braun, Gianluigi De Geronimo, Paul Dowkontt, John W. Elliot, Teruaki Enoto, Manel Errando, Yasushi Fukazawa, Akihiro Furuzawa, Thomas A. Gadson, Ephraim Gau, Victor Guarino, Shuichi Gunji, Kenny E. Hall, Keon D. Harmon, Kengo Hattori, Kiyoshi Hayashida, Scott E. Heatwole, Arman Hossen, Fumiya Imazato, Kazunori Ishibashi, Manabu Ishida, Nirmal Iyer, Fabian Kislat, Mózsi Kiss, Takao Kitaguchi, David P. Kotsifakis, Henric Krawczynski, James R. Lanzi, Lindsey Lisalda, Hiroto Matake, Hironori Matsumoto, Taisei Mineta, Takuya Miyazawa, Tsunefumi Mizuno, Takashi Okajima, Nozomi Nakaniwa, Izabella Pastrani, Mark Pearce, Zachary Peterson, Chris Purdy, Brian Rauch, Felix Ryde, Yoshitaka Saito, Chris Shreeves, Garry Simburger, Carl Snow, Sean Spooner, Theodor-Adrian Stana, David W. Stuchlik, Hiromitsu Takahashi, Tomoshi Takeda, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Hiroshi Tsunemi, Nagomi Uchida, Yuusuke Uchida, Keisuke Uchiyama, Brett Vincent, Andrew T. West, Eric Wulf, Yuto Yoshida, Ryuya Yamamoto
    Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray 2020年12月19日
  • Yoshitomo Maeda
    The 15th Symposium of Japanese Research Community on X-ray Imaging Optics 2019年10月26日  招待有り

担当経験のある科目(授業)

 6
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所属学協会

 4

共同研究・競争的資金等の研究課題

 10
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社会貢献活動

 1
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