Formation of X-ray Emitting Regions and the Origin of Time Variabilities in Accretion Flow onto a Supermassive Black Hole

2018 Fiscal Year Annual Research Report

• Project/Area Number: 16H03954
• Research Institution: Chiba University
• Principal Investigator: 松元 亮治 千葉大学, 大学院理学研究院, 教授 (00209660)
• Co-Investigator(Kenkyū-buntansha): 横山 央明 東京大学, 大学院理学系研究科(理学部), 准教授 (00311184) ; 山田 真也 首都大学東京, 理学研究科, 助教 (40612073) ; 花輪 知幸 千葉大学, 先進科学センター, 教授 (50172953) ; 町田 真美 九州大学, 理学研究院, 助教 (50455200)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: 理論天文学 / 活動銀河中心核 / X線天文学 / ブラックホール / 磁気流体シミュレーション / 宇宙ジェット / 状態遷移 / 輻射スペクトル

Outline of Annual Research Achievements

輻射磁気流体コードCANS+Rを用いてブラックホール降着流の大局的3次元輻射磁気流体シミュレーションを実施し、降着率が球対称降着流の上限光度に対応する降着率（エディントン降着率）の10％程度の場合、ブラックホール近傍の移流優勢な高温降着流と遠方の光学的に厚い低温降着円盤が共存し、その遷移領域に蓄積された磁気エネルギーが解放されて間歇的にジェットを噴出することを明らかにした。また、セイファート銀河の増光に伴って出現する軟X線超過領域は、高温降着流が低温円盤に遷移する過程で形成されることが示唆された。
高温領域と低温領域間の熱伝導を考慮した軸対称2次元磁気流体シミュレーションを実施し、熱伝導が遷移領域の厚さに影響を及ぼすことを示した。熱伝導を効率良くシミュレートするため、陽解法であるSuper Time Stepping (STS)法に基づく熱伝導モジュールを実装し、降着円盤コロナの時間発展計算に適用可能にした。また、イオン温度と電子温度が異なるプラズマを扱うことができる2温度プラズマモジュールをCANS+に追加して宇宙ジェット伝播計算に適用し、衝撃波により2温度プラズマが形成されるという結果を論文として出版した。
観測との連携においては、「ひとみ」衛星が捉えた巨大ブラックホール周辺の鉄の蛍光輝線の精密分光から、降着円盤の形状に制限を与えた。また、X線のスペクトル解析に機械学習を導入し、プラズマ診断を高速化することに成功した。
2018年8月にスウェーデンSigtunaで開催した研究会「Time for Accretion」において本研究の分担者・研究協力者が9件の口頭発表を行った。2018年11月に金沢で開催された2nd Asia-Pacific Conference on Plasma Physics等の国際会議でも研究成果を発表した。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Oxford University(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: Oxford University
• [Int'l Joint Research] SRON/Radboud University(オランダ)
  • Country Name: NETHERLANDS
  • Counterpart Institution: SRON/Radboud University
• [Journal Article] Application of Clumpy Torus Model to Broadband X-ray Spectra of Two Seyfert 1 Galaxies: IC 4329A and NGC 7469 (2019)
  • Author(s): Shoji Ogawa, Yoshihiro Ueda, Satoshi Yamada, Atsushi Tanimoto, Toshihiro Kawaguchi
  • Journal Title: The Astrophysical Journal Volume: 印刷中（arXiv:1903.11606） Pages: 印刷中
  • Peer Reviewed / Open Access
• [Journal Article] Discovery of Extreme Ionized-gas Outflow in an AKARI-selected Ultra-luminous Infrared Galaxy at z=0.5 (2019)
  • Author(s): Xiaoyang Chen, Masayuki Akiyama, Hirofumi Noda, Abdurro'uf, Yoshiki Toba, Issei Yamamura, Toshihiro Kawaguchi, Mitsuru Kokubo, Kohei Ichikawa
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 印刷中 (arXiv:1901.05618) Pages: 印刷中
  • DOI: 10.1093/pasj/psz002
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Workshop Summary "The Power of Faraday Tomography" (2019)
  • Author(s): Haverkorn, Marijke; Machida, Mami; Akahori, Takuya
  • Journal Title: Galaxies Volume: 7 Pages: 26（12pages)
  • DOI: 10.3390/galaxies7010026
  • Open Access / Int'l Joint Research
• [Journal Article] 2D MHD Simulations of the State Transitions of X-Ray Binaries Taking into Account Thermal Conduction (2019)
  • Author(s): Nakamura, K.E., Machida, M., Matsumoto, R.
  • Journal Title: Galaxies Volume: 7 Pages: 22 (13pages)
  • DOI: 10.3390/galaxies7010022
  • Peer Reviewed / Open Access
• [Journal Article] Faraday Depolarization Effects in Spiral Galaxies (2019)
  • Author(s): Machida, Mami; Akahori, Takuya; Nakamura, Kenji; Nakanishi, Hiroyuki; Haverkorn, Marijke
  • Journal Title: Galaxies Volume: 7 Pages: 15(7pages)
  • DOI: 10.3390/galaxies7010015
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Two-Temperature Magnetohydrodynamics Simulations of Propagation of Semi-Relativistic Jets (2019)
  • Author(s): Ohmura, T., Machida, M., Nakamura, K.E., Kudoh, Y., Asahina, Y., Matsumoto, R.
  • Journal Title: Galaxies Volume: 7 Pages: 14 (14pages)
  • DOI: 10.3390/galaxies7010014
  • Peer Reviewed / Open Access
• [Journal Article] Recent progress in Asia-Pacific solar physics and astrophysics (2018)
  • Author(s): Chen, P.F., Shibata, K., Matsumoto, R.
  • Journal Title: Reviews of Modern Plasma Physics Volume: 2 Pages: id 5 (28 pages)
  • DOI: 10.1007/s41614-018-0017-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Impact of Dynamic State on the Mass Condensation Rate of Solar Prominences (2018)
  • Author(s): Kaneko, T., Yokoyama, T.
  • Journal Title: The Astrophysical Journal Volume: 869 Pages: id 136
  • DOI: 10.3847/1538-4357/aaee6f
  • Peer Reviewed
• [Journal Article] Super DIOS: Future X-ray Spectroscopic Mission to Search for Dark Baryons (2018)
  • Author(s): Yamada,S., Ohashi,T., Ishisaki,Y., Ezoe, Y., Ichinohe,Y., Kitazawa,S., Kosaka,K., Hayakawa,R., Nunomura, K., Mitsuda,K. et al. the DIOS team
  • Journal Title: Journal of Low Temperature Physics Volume: 193 Pages: 1016-1023
  • DOI: 10.1007/s10909-018-1918-z
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Faraday Tomography of the SS433 Jet Termination Region (2018)
  • Author(s): Haruka Sakemi, Mami Machida, Takumi Ohmura, Shinsuke Ideguchi, Yoshimitsu Miyashita, Keitaro Takahashi, Takuya Akahori, Hiroki Akamatsu, Hiroyuki Nakanishi, Kohei Kurahara, Jamie Farnes
  • Journal Title: Galaxies Volume: 6 Pages: 137-144
  • DOI: 10.3390/galaxies6040137
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] In-Orbit Performance of the Digital Electronics for the X-Ray Microcalorimeter Onboard the Hitomi Satellite (2018)
  • Author(s): Tsujimoto, M., Tashiro, M., Ishisaki, Y., Yamada, S., Seta, H., Mitsuda, K., Boyce, K., Eckart, M., Kilbourne, C., Leutenegger, M., Porter, F., Kelley, R.
  • Journal Title: Journal of Low Temperature Physics Volume: 193 Pages: 505-511
  • DOI: 10.1007/s10909-018-1861-z
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Compton Shoulder Diagnostics in Active Galactic Nuclei for Probing the Metalicity of the Obscuring Compton-Thick Tori (2018)
  • Author(s): Hikitani, Masaya; Ohno, Masanori; Fukazawa, Yasushi; Kawaguchi, Toshihiro; Odaka, Hirokazu
  • Journal Title: The Astrophysical Journal Volume: 867 Pages: 80 (6pp)
  • DOI: 10.3847/1538-4357/aae1fe
  • Peer Reviewed / Open Access
• [Journal Article] Radio broad-band visualization of global three-dimensional magnetohydrodynamical simulations of spiral galaxies - II. Faraday depolarization from 100 MHz to 10 GHz (2018)
  • Author(s): Machida, M., Akahori, T., Nakamura, K. E., Nakanishi, H., Haverkorn, M.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 482 Pages: 3394-3402
  • DOI: 10.1093/mnras/sty2940
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A 100-pc Scale, Fast and Dense Outflow in Narrow-Line Seyfert 1 Galaxy IRAS 04576+0912 (2018)
  • Author(s): Toshihiro KAWAGUCHI, Shinobu OZAKI, Hajime SUGAI, Kazuya MATSUBAYASHI, Takashi HATTORI, Atsushi SHIMONO, Kentaro AOKI, Yutaka HAYANO, Yosuke MINOWA, Kazuma MITSUDA and Yasuhito HASHIBA
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 93(8pages)
  • DOI: 10.1093/pasj/psy089
  • Peer Reviewed
• [Journal Article] Radio broadband visualization of global three-dimensional magnetohydrodynamical simulations of spiral galaxies ? I. Faraday rotation at 8GHz (2018)
  • Author(s): Machida, M., Akahori, T., Nakamura, K. E., Nakanishi, H., Haverkorn, M.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 480 Pages: 17-25
  • DOI: 10.1093/mnras/sty1799
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Imaging Extended Emission-Line Regions of Obscured AGN with the Subaru Hyper Suprime-Cam Survey (2018)
  • Author(s): Ai-Lei Sun, Jenny E. Greene, Nadia L. Zakamska, Andy Goulding, Michael Strauss, Song Huang, Sean Johnson, Toshihiro Kawaguchi, Yoshiki Matsuoka, Alisabeth A. Marsteller, Tohru Nagao, Yoshiki Toba
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 480 Pages: 2302-2323
  • DOI: 10.1093/mnras/sty1394
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Neural network-based preprocessing to estimate the parameters of the X-ray emission of a single-temperature thermal plasma (2018)
  • Author(s): Ichinohe, Y., Yamada, S., Miyazaki, N., Saito, S.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 475 Pages: 4739-4744
  • DOI: 10.1093/mnras/sty161
  • Peer Reviewed
• [Journal Article] In-flight calibration of Hitomi Soft X-ray Spectrometer. (1) Background (2018)
  • Author(s): Caroline A Kilbourne, Shinya Yamada他 (22人中21番目）
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 18(11pages)
  • DOI: 10.1093/pasj/psx139
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Hitomi observation of radio galaxy NGC1275: The first X-ray microcalorimeter spectroscopy of Fe-Kα line emission from an active galactic nucleus (2018)
  • Author(s): Hitomi Collaboration, S. Yamada (208人中193番目)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 13(20pages)
  • DOI: 10.1093/pasj/psx147
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi (2018)
  • Author(s): Hitomi Collaboration, S. Yamada (208人中193番目)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 12(48pages)
  • DOI: 10.1093/pasj/psx156
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Temperature structure in the Perseus cluster core observed with Hitomi (2018)
  • Author(s): Hitomi Collaboration, S. Yamada (208人中193番目)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 11(30pages)
  • DOI: 10.1093/pasj/psy004
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Measurements of resonant scattering in thePerseus Cluster core with Hitomi SXS (2018)
  • Author(s): Hitomi Collaboration, S. Yamada (208人中193番目)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 10(29pages)
  • DOI: 10.1093/pasj/psx127
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Atmospheric gas dynamics in the Perseus cluster observed with Hitomi (2018)
  • Author(s): Hitomi Collaboration, S. Yamada (208人中193番目)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: id 9(32pages)
  • DOI: 10.1093/pasj/psx138
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Magnetic activity in the Galactic Centre region - fast downflows along rising magnetic loops (2018)
  • Author(s): Kakiuchi, K., Suzuki, T., Fukui, Y., Torii, K., Enokiya, R., Machida M., Matsumoto, R.
  • Journal Title: Monthly Notices of Royal Astronomical Society Volume: 476 Pages: 5629-5638
  • DOI: 10.1093/mnras/sty629
  • Peer Reviewed
• [Presentation] Magnetic field analysis of the SS433 jet termination region using multi-frequency dataset (2019)
  • Author(s): Sakemi, H., Machida, M., Ohmura, T., Ideguchi, S., Miyashita, Y., Takahashi, K., Akahori, T., Akamatsu, H., Nakanishi, H., Kurahara, K., Farnes, J. S.
  • Organizer: Polarimetry in the ALMA era: a new crossroads of astrophysics
  • Int'l Joint Research
• [Presentation] Flux Emergence and Eruptions in Accretion Disks and Galactic Gas Disks (2019)
  • Author(s): Ryoji Matsumoto, Takuma Tomiyoshi
  • Organizer: Flux Emergence Workshop 2019 (FEW2019)
  • Int'l Joint Research / Invited
• [Presentation] 天体活動と宇宙進化の大規模数値シミュレーション (2019)
  • Author(s): 松元亮治
  • Organizer: 日本物理学会第74回年次大会（九州大学）
• [Presentation] セイファート銀河の降着流におけるX線放射領域形成の3次元大局的輻射磁気流体シミュレーション (2019)
  • Author(s): 五十嵐太一、加藤成晃、高橋博之、大須賀健、松元亮治
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] 銀河中心領域における分子ガスループ形成の3次元磁気流体シミュレーション (2019)
  • Author(s): 冨吉拓馬、松元亮治
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] 磁気回転不安定性の飽和値の解像度依存性II (2019)
  • Author(s): 町田真美、川島朋尚、工藤祐己、松本洋介、松元亮治
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] X線連星のスペクトル状態遷移に関する熱伝導を考慮した2次元数値実験III (2019)
  • Author(s): 中村賢仁、町田真美、横山央明、松元亮治
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] SS433ジェット先端領域のファラデートモグラフィー解析 (2019)
  • Author(s): 酒見はる香, 町田真美, 大村匠, 出口真輔, 宮下恭光, 高橋慶太郎, 赤堀卓也, 赤松弘規, 中西裕之, 藏原昂平, Jamie Farnes
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] 宇宙ジェットに適した二温度磁気流体計算コード開発：衝撃波加熱の分配 (2019)
  • Author(s): 大村匠, 町田真美, 中村賢仁, 工藤祐己, 朝比奈雄太, 松元亮治
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] W50/SS433の構造形成に関する磁気流体計算 (2019)
  • Author(s): 小野宏次朗、大村匠、町田真美、酒見はる香、朝比奈雄太
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] 巨大ブラックホール天体からの広波長放射モデル (2019)
  • Author(s): 川口 俊宏
  • Organizer: 高感度・広帯域X線観測で探るブラックホール降着現象の物理
  • Invited
• [Presentation] Hard-to-Soft遷移中のブラックホール降着円盤の大局的3次元輻射磁気流体シミュレーション (2019)
  • Author(s): 五十嵐太一、加藤成晃、高橋博之、大須賀健、松元亮治
  • Organizer: 高感度・広帯域X線観測で探るブラックホール降着現象の物理
• [Presentation] Radiation MagnetoHydroDynamic Simulations of Black Hole Accretion Disks During Hard-to-Soft Transition (2019)
  • Author(s): Taichi Igarashi, Hiroyuki Takahashi, Ken Ohsuga, Yoshiaki Kato, Ryoji Matsumoto
  • Organizer: Radiation Hydrodynamics Approaches to the Study of Black Hole Accretion and Outflows
  • Int'l Joint Research / Invited
• [Presentation] Two-Temperature Magnetohydrodynamics Simulations of Propagation of Semi-Relativistic Jets (2019)
  • Author(s): Ohmura Takumi, Machida Mami, Nakamura Kenji, Kudoh Yuki, Asahina Yuta, Matsumoto Ryoji
  • Organizer: Radiation Hydrodynamics Approaches to the Study of Black Hole Accretion and Outflows
  • Int'l Joint Research / Invited
• [Presentation] ブラックホール降着流におけるハード・ソフト遷移の輻射磁気流体シミュレーション (2019)
  • Author(s): 五十嵐太一
  • Organizer: 2018年度天文シミュレーションプロジェクトユーザーズミーティング
• [Presentation] 銀河系中心部における分子ガスループ形成の3次元磁気流体シミュレーション (2019)
  • Author(s): 冨吉拓馬
  • Organizer: 2018年度天文シミュレーションプロジェクトユーザーズミーティング
• [Presentation] 電子―イオン二温度磁気流体計算による宇宙ジェット生成シミュレーション (2019)
  • Author(s): 大村匠
  • Organizer: 2018年度天文シミュレーションプロジェクトユーザーズミーティング
• [Presentation] Radio wavelength visualization of spiral galaxies obtained from numerical simulations (2019)
  • Author(s): Machida Mami
  • Organizer: Dynamics and physics of outflows in protostellar disks and Active Galactic Nuclei, Kagoshima
  • Int'l Joint Research
• [Presentation] Fast and Dense Outflow from Active Galactic Nuclei with High Gas Accretion Rates (2019)
  • Author(s): T. Kawaguchi
  • Organizer: Dynamics and physics of outflows in protostellar disks and Active Galactic Nuclei, Kagoshima
  • Int'l Joint Research
• [Presentation] シンクロトロン放射を取り入れた二温度磁気流体計算による3次元ジェット伝播シミュレーション (2018)
  • Author(s): 大村 匠
  • Organizer: H30年度(前期)「若手・女性利用者推薦」成果報告会
• [Presentation] Global Radiation Magnetohydrodynamic Simulations of Hard-to-Soft Transition in Black Hole Accretion Flows (2018)
  • Author(s): T. Igarashi, Y. Kato, H.R. Takahashi, K. Ohsuga, R. Matsumoto
  • Organizer: 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP 2018)
  • Int'l Joint Research
• [Presentation] MHD simulations of astrophisical jets including electron energy time evolution (2018)
  • Author(s): Ohmura Takumi, Machida Mami, Nakamura Kenji, Kudoh Yuki, Asahina Yuta, Matsumoto Ryoji
  • Organizer: 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP 2018)
  • Int'l Joint Research
• [Presentation] Magnetohydrodynamic Simulations of the Formation of Galactic Prominenc (2018)
  • Author(s): Takuma Tomiyoshi, Chi-Han Peng, Ryoji Matsumoto
  • Organizer: 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP 2018)
  • Int'l Joint Research
• [Presentation] Radio-band visualization of the MHD simulations for the astrophysical jet (2018)
  • Author(s): K. Ono, T. Omura, M. Machida, H. Sakemi, Y. Asahina
  • Organizer: 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP 2018)
  • Int'l Joint Research
• [Presentation] セイファート銀河におけるX線放射領域形成の磁気流体モテ?ル (2018)
  • Author(s): 松元 亮治
  • Organizer: 天体形成研究会, 筑波大学
  • Invited
• [Presentation] 重力を含む全エネルギーの保存を保証する流体力学方程式の数値解法 (2018)
  • Author(s): 花輪 知幸
  • Organizer: 天体形成研究会,筑波大学
  • Invited
• [Presentation] 高ガス降着率活動銀河核からのガス噴出の面分光による研究 (2018)
  • Author(s): 川口 俊宏
  • Organizer: 天体形成研究会, 筑波大学
  • Invited
• [Presentation] Global Three-dimensional Radiation MagnetoHydroDynamic Simulations of Hard-to-Soft Transitions in Stellar Mass Black Hole Candidates (2018)
  • Author(s): Taichi Igarashi, Ryoji Matsumoto, Yoshiaki Kato, Hiroyuki R. Takahashi, Ken Ohsuga
  • Organizer: The Eighth East Asian Numerical Astrophysics Meeting (EANAM 2018)
  • Int'l Joint Research
• [Presentation] 3D-MHD Simulations of Prominences Formation in Rotating Disk (2018)
  • Author(s): Takuma Tomiyoshi
  • Organizer: The Eighth East Asian Numerical Astrophysics Meeting (EANAM 2018)
  • Int'l Joint Research
• [Presentation] Numerical simulations of super-critical accretion flows onto BHs and NSs with application to ULXs (2018)
  • Author(s): Tomohisa Kawashima
  • Organizer: Slim accretion disks workshop, Warsaw
  • Int'l Joint Research / Invited
• [Presentation] Some Aspects of Super-Eddington Accreting AGNs; Illumination and the Feedback Process (2018)
  • Author(s): Toshihiro Kawaguchi
  • Organizer: Slim accretion disks workshop, Warsaw
  • Int'l Joint Research / Invited
• [Presentation] 巨大ブラックホールが宇宙の歴史に果たした影響のすばる望遠鏡を用いた計測の試み (2018)
  • Author(s): 川口 俊宏
  • Organizer: すばる望遠鏡 Hyper Suprime-Cam と ALMA で挑むクエーサー研究
  • Invited
• [Presentation] A 100-pc Scale, Fast and Dense Outflow in a Super-Eddington Accreting Active Galactic Nucleus (2018)
  • Author(s): T. Kawaguchi
  • Organizer: BREAKING THE LIMITS 2018: Super-Eddington accretion onto compact objects
  • Int'l Joint Research
• [Presentation] ブラックホール降着流におけるハード・ソフト遷移の大局的輻射磁気流体シミュレーション (2018)
  • Author(s): 五十嵐太一、加藤成晃、高橋博之、大須賀健、松元亮治
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] 降着円盤の蒸発・凝縮に関する熱伝導を考慮した2次元磁気流体数値実験 (2018)
  • Author(s): 金子岳史、中村賢仁、横山央明
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] X線連星のスペクトル状態遷移に関する熱伝導を考慮した２次元数値実験II (2018)
  • Author(s): 中村賢仁、金子岳史、町田真美、横山央明、松元亮治
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] 背景磁場を取り入れたジェット伝播数値実験 (2018)
  • Author(s): 大村匠、町田真美、中村賢仁、工藤祐己、朝比奈雄太、酒見はる香、松元亮治
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] 高光度赤外線銀河NGC5135が持つ活動銀河核の広帯域X線スペクトル解析 (2018)
  • Author(s): 山田智史, 上田佳宏, 谷本敦, 小高裕和, 川口俊宏, 深沢泰司
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] ブラックホール降着流の輻射磁気流体シミュレーション (2018)
  • Author(s): 五十嵐太一、加藤成晃、高橋博之、大須賀健、松元亮治
  • Organizer: 日本流体力学会 年会2018
• [Presentation] Global Magnetohydrodynamic Simulations of Coexisting Hot and Cool Disks in Black Hole Candidates (2018)
  • Author(s): Matsumoto, Ryoji
  • Organizer: XXXth General Assembly of the International Astronomical Union
  • Int'l Joint Research
• [Presentation] Formation of soft X-ray emitting regions in Seyfert galaxies (2018)
  • Author(s): R. Matsumoto
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] Radiation-MHD simulations of super-Eddington accretion flows and outflows (2018)
  • Author(s): K. Ohsuga
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research / Invited
• [Presentation] ASTRO-H/Hitomi and the next mission (2018)
  • Author(s): S. Yamada
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] Magnetic field analysis of the bow and terminal shock of the SS433 jet (2018)
  • Author(s): Sakemi, H., Machida, M., Akahori, T., Nakanishi, H., Akamatsu, H., Kurahara, K., Farnes, J. S., Yamada S., Katsuda, S.
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] Two temperature MHD Simulations for the jet propagation from X-ray binaries (2018)
  • Author(s): Ohmura Takumi, Machida Mami, Nakamura Kenji, Kudoh Yuki, Asahina Yuta, Matsumoto Ryoji
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] Global MHD simulations of accretion disks using CANS+ (2018)
  • Author(s): Machida Mami, Kawashima Tomohisa, Kudoh Yuki
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] Soft X-ray Excess Variation Driving Changing-Look AGN (2018)
  • Author(s): H. Noda
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] Supercritical accretion flows in ULXs (2018)
  • Author(s): T. Kawashima
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research / Invited
• [Presentation] Radiation MHD simulations of hard-to-soft state transitions in BH accretion flows (2018)
  • Author(s): T. Igarashi, H.R. Takahashi, K. Ohsuga, Y. Kato, R. Matsumoto
  • Organizer: Time for accretion, Sigtuna
  • Int'l Joint Research
• [Presentation] コンプトショルダーを用いた X線反射モデルによる活動銀河核トーラスの物理状態推定 (2018)
  • Author(s): 挽谷 政弥，大野 雅功，深沢 泰司，川口 俊宏
  • Organizer: 2018年度 応用物理・物理系学会 中国四国支部 合同学術講演会
• [Presentation] Radiation Magnetohydrodynamic Simulations of Black Hole Accretion Disks (2018)
  • Author(s): Ryoji Matsumoto
  • Organizer: 8th East-Asia School and Workshop on Laboratory, Space, and Astrophysical Plasmas(EASW8)
  • Int'l Joint Research / Invited
• [Presentation] Formation of Molecular Gas Prominences in Galactic Central Region (2018)
  • Author(s): Matsumoto, Ryoji; Peng, Chih-Han
  • Organizer: 42nd COSPAR Scientific Assembly
  • Int'l Joint Research / Invited
• [Presentation] Numerical simulations of super-Eddington accretion flows and outflows around black holes and neutron stars (2018)
  • Author(s): K. Ohsuga
  • Organizer: 42nd COSPAR Scientific Assembly
  • Int'l Joint Research / Invited
• [Presentation] Numerical modeling of prominence formation from reconnection to radiative condensation (2018)
  • Author(s): Kaneko, T., Yokoyama, T.
  • Organizer: 42nd COSPAR Scientific Assembly
  • Int'l Joint Research / Invited
• [Presentation] Reconnection-Condensation Model for Solar Prominence Formation (2018)
  • Author(s): Kaneko, T., Yokoyama, T.
  • Organizer: ASTRONUM 2018 (13th International Conference on Numerical Modeling of Space Plasma Flows)
  • Int'l Joint Research / Invited
• [Presentation] Super-Eddington flows and spectra (2018)
  • Author(s): K. Ohsuga
  • Organizer: ULTRA-LUMINOUS X-RAY PULSARS
  • Int'l Joint Research / Invited
• [Presentation] 磁気回転不安定性によるブラックホール降着流の角運動量輸送機構の解明 (2018)
  • Author(s): 町田真美、川島朋尚、工藤祐己
  • Organizer: 平成29年度 「若手・女性利用者推薦」成果報告会
• [Presentation] Propagation and Structure of Astrophysical Jets by Two-temperature Magnetohydordynamics (2018)
  • Author(s): Ohmura Takumi; Machida Mami; Nakamura Kenji; Kudoh Yuki; Asahina Yuta; Matsumoto Ryoji
  • Organizer: THE POWER OF FARADAY TOMOGRAPHY : TOWARDS 3D MAPPING OF COSMIC MAGNETIC FIELDS
  • Int'l Joint Research
• [Presentation] Faraday Depolarization Effects in Spiral Galaxies (2018)
  • Author(s): Machida, Mami; Akahori, Takuya; Nakamura, Kenji; Nakanishi, Hiroyuki; Haverkorn, Marijke
  • Organizer: THE POWER OF FARADAY TOMOGRAPHY : TOWARDS 3D MAPPING OF COSMIC MAGNETIC FIELDS
  • Int'l Joint Research
• [Presentation] Faraday Tomography of the SS433 Jet Terminal Region (2018)
  • Author(s): Sakemi, H., Machida, M., Ohmura, T., Ideguchi, S., Miyashita, Y., Takahashi, K., Akahori, T., Akamatsu, H., Nakanishi, H., Kurahara, K., Farnes, J. S.
  • Organizer: THE POWER OF FARADAY TOMOGRAPHY : TOWARDS 3D MAPPING OF COSMIC MAGNETIC FIELDS
  • Int'l Joint Research
• [Presentation] Magnetohydrodynamic Simulations of Disk Dynamo and State Transitions (2018)
  • Author(s): R. Matsumoto
  • Organizer: Max-Planck/Princeton Center for Plasma Physics Workshop
  • Int'l Joint Research
• [Presentation] Radiation-MHD simulations of accretion flows and outflows around black holes and neutron stars (2018)
  • Author(s): K. Ohsuga
  • Organizer: Max-Planck/Princeton Center for Plasma Physics Workshop
  • Int'l Joint Research / Invited
• [Remarks] agndisk, Astrophysics Laboratory, Chiba Univ.
  • URL: http://www.astro.phys.s.chiba-u.ac.jp/agndisk/
• [Funded Workshop] Time for Accretion (2019)