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大須賀健

Ohsuga, Ken

計算科学研究センター , 教授
Center for Computational Sciences , Professor

https://www2.ccs.tsukuba.ac.jp/people/ohsuga/index.html

オープンアクセス版の論文は「つくばリポジトリ」で読むことができます。

1. Resolving the Multiple Component Outflows in PG 1211+143. II. The Soft X-Ray View of the Ultrafast Outflow James N. Reeves; Valentina Braito; Misaki Mizumoto; Steven B. Kraemer (+14 著者) Omer Reich
The Astrophysical Journal 1000: 170 (2026) Semantic Scholar
2. Clumpy outflows from super-Eddington accreting black holes. I. Radiation hydrodynamics simulations and observational implications Hu, Haojie; Asahina, Yuta; Yoshioka, Shogo; Takahashi, Hiroyuki R.Ohsuga, Ken
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2026) Semantic Scholar
3. Resolving the Multiple Component Outflows in PG 1211+143. I. The Fe-K Absorption Structure and UFO Forest Mizumoto, Misaki; Reeves, James N.; Braito, Valentina; Behar, Ehud (+13 著者) Somenzi, Paolo
ASTROPHYSICAL JOURNAL 997: 219 (2026) Semantic Scholar
4. A Relativistic Formula for Radiation Intensity of Multiply Scattered Photons Takeda, Rintaro; Takahashi, Rohta; Ohsuga, Ken
ASTROPHYSICAL JOURNAL 998: (2026) Semantic Scholar
5. GPU-Accelerated General Relativistic Radiation MHD Simulations with M-1 Closure Ryohei Kobayashi; Hiroyuki R. Takahashi; Akira Nukada; Yuta Asahina (+1 著者) Ken Ohsuga
Journal of Information Processing 34: 149 (2026) Semantic Scholar
6. Black hole spin estimation with time-variable image of M 87 during the flaring state Mikiya M Takahashi; Tomohisa Kawashima; Ken Ohsuga
Publications of the Astronomical Society of Japan (2025)
7. Constraining the corona geometry of Cyg X-1 with broad-band spectrum and polarimetric analysis based on observations in 2022 May Zhang, Sixuan; Mizuno, Tsunefumi; Kawashima, Tomohisa; Done, Chris (+4 著者) Ohsuga, Ken
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2025)
8. The Convergence of Heavy and Light Seeds to Overmassive Black Holes at Cosmic Dawn Hu, Haojie; Inayoshi, Kohei; Haiman, Zoltan; Ho, Luis C.Ohsuga, Ken
ASTROPHYSICAL JOURNAL LETTERS 983: (2025) Semantic Scholar
9. GPU演算加速による一般相対論的輻射磁気流体シミュレーションコードの性能評価小林, 諒平; 高橋, 博之; 額田, 彰; 朝比奈, 雄太 (+1 著者) 大須賀, 健
情報処理学会研究報告 2025-HPC-198: 1 (2025)
10. Accelerating General Relativistic Radiation Magnetohydrodynamic Simulations with GPUs Ryohei Kobayashi; Hiroyuki R. Takahashi; Akira Nukada; Yuta Asahina (+1 著者) Ken Ohsuga
Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region 72 (2025) Semantic Scholar
11. GR-RMHD Simulations of Super-Eddington Accretion Flows onto a Neutron Star with Dipole and Quadrupole Magnetic Fields Akihiro Inoue; Ken Ohsuga; Hiroyuki R. Takahashi; Yuta AsahinaMatthew J. Middleton
The Astrophysical Journal 977: 10 (2024) Semantic Scholar
12. Radio Images inside Highly Magnetized Jet Funnels Based on Semianalytic GRMHD Models Taiki Ogihara; Tomohisa Kawashima; Ken Ohsuga
The Astrophysical Journal 969: 22 (2024) Semantic Scholar
13. Radiation MHD Simulations of Soft X-Ray Emitting Regions in Changing Look AGN Taichi Igarashi; Hiroyuki R. Takahashi; Tomohisa Kawashima; Ken Ohsuga (+1 著者) Ryoji Matsumoto
The Astrophysical Journal 968: 121 (2024) Semantic Scholar
14. A Relativistic Formula for the Multiple Scattering of Photons Rohta Takahashi; Masayuki Umemura; Ken Ohsuga; Yuta Asahina (+4 著者) Tomoaki Nagasawa
The Astrophysical Journal Letters 967: L10 (2024) Semantic Scholar
15. Three-dimensional radiation hydrodynamics simulations of wandering intermediate-mass black holes considering the anisotropic radiation and dust sublimation Ogata, Erika; Ohsuga, Ken; Fukushima, Hajime; Yajima, Hidenobu
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 528: 2588 (2024) Semantic Scholar
16. シミュレーションとチームワークで挑むコンパクト天体周囲の降着流・噴出流大須賀, 健
The Astronomical Herald (2023)
17. The high energy X-ray probe (HEX-P): studying extreme accretion with ultraluminous X-ray sources Bachetti, Matteo; Middleton; Matthew J; Pinto, Ciro (+24 著者) Wolter, Anna
FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 10: (2023) Semantic Scholar
18. Decomposing the Spectrum of Ultraluminous X-Ray Pulsar NGC 300 ULX-1 Kobayashi; Shogo B; Noda, Hirofumi; Enoto, Teruaki (+2 著者) Ohsuga, Ken
ASTROPHYSICAL JOURNAL 955: 124 (2023) Semantic Scholar
19. Precessing jet nozzle connecting to a spinning black hole in M87 Cui, Yuzhu; Hada, Kazuhiro; Kawashima, Tomohisa; Kino, Motoki (+80 著者) Zhong, Weiye
NATURE 621: 711 (2023) Semantic Scholar
20. Modeling of Thermal Emission from ULX Pulsar Swift J0243.6+6124 with General Relativistic Radiation MHD Simulations Akihiro Inoue; Ken Ohsuga; Hiroyuki R. Takahashi; Yuta Asahina
The Astrophysical Journal 952: 62 (2023) Semantic Scholar

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1. 第５章〜第８章、付録大須賀, 健
日本評論社 2024年1月 (ISBN: 4535603448)
2. ブラックホールをのぞいてみたら大須賀,健
KADOKAWA 2022年3月 (ISBN: 4044006989)
3. 世界一やさしいブラックホールの話大須賀, 健 (担当:監修, 範囲:世界一やさしいブラックホールの話)
宝島社 2021年4月 (ISBN: 4299015568)
4. 数式を使わない物理学入門大須賀, 健; 猪木正文 (担当:監修, 範囲:数式を使わない物理学入門)
KADOKAWA 2020年5月 (ISBN: 4044005710)
5. 4.6.2 標準円盤モデル, 4.6.3 移流優勢降着流, 4.6.7 降着円盤の輻射流体力学高原文郎; 家正則; 小玉英雄; 高橋忠幸; 大須賀, 健 (担当:分担執筆, 範囲:宇宙物理学ハンドブック)
講談社 2020年2月 (ISBN: 4254131275)
6. ブラックホールをのぞいてみたら大須賀,健
KADOKAWA 2017年7月 (ISBN: 4041061849)
7. 宇宙のふしぎ最前線! 謎だらけの宇宙にいどむ大須賀,健
講談社 2017年7月 (ISBN: 4062206722)
8. １１章：ブラックホール大須賀, 健; 谷口義明 (担当:分担執筆, 範囲:新・天文学事典)
講談社 2013年3月 (ISBN: 9784062578066)
9. ゼロからわかるブラックホール大須賀,健
講談社 2011年6月 (ISBN: 9784062577281)
10. 光速ジェット最前線「高エネルギージェット」大須賀, 健; 福江純; 粟野由美 (担当:分担執筆, 範囲:宇宙はどこまで明らかになったのか)
ソフトバンククリエイティブ 2007年6月 (ISBN: 9784797337310)

501. Investigation of the Jet-Disk Structure in M87: Flux Separation in the Linear ; Circular Polarization Images Y., Tsunetoe; S., Mineshige; T., Kawashima; K., Ohsuga; K., Akiyama; H.R., Takahashi
European Astronomical Society Annual Meeting 2022
502. Investigating Jet-Disk Structure through Linear ; Circular Polarization Images Y., Tsunetoe; S., Mineshige; T., Kawashima; K., Ohsuga; K., Akiyama; H.R., Takahashi
IAU symposium 375 - the Multimessenger Chakra of Blazar Jets
503. Radiation Magnetohydrodynamic Simulations of sub-Eddington accretion flows in AGN T., Igarashi; Y., Kato;H; R. Takahashi; K., Ohsuga; Y., Matsumoto; R., Matsumoto
COSPAR 2022 - 44th Scientific Assembly
504. Enhanced Activity of Black Hole Accretion Flows during Hard-to-Soft State Transition R., Matsumoto; T., Igarashi; Y., Kato;H; R. Takahashi; K., Ohsuga; Y., Matsumoto
IAU General Assembly 2022
505. Global Three-dimensional Radiation Magnetohydrodynamic Simulations of Changing Look Active Galactic Nuclei R., Matsumoto; T., Igarashi; H; R. Takahashi; K., Ohsuga; Y., Matsumoto
33rd IUPAP Conference on Computational Physics (CCP2022)
506. Radiation hydrodynamics simulations of AGN winds: comparison with observations ; impact on SMBH growth M., Nomura; K., Ohsuga; Chris, Done; Kazuyuki, Omukai; M., Mizumoto; H., Odaka
The 9th East Asian Numerical Astrophysics Meeting (EANAM9) 招待有り
507. Impacts of Lyman-alpha radiation force on the super-Eddington accretion flow onto massive black holes T., Mushano; T., Ogawa; K., Ohsuga; H., Yajima; K., Omukai
The 9th East Asian Numerical Astrophysics Meeting (EANAM9)
508. General relativistic radiation-MHD simulations of supercritical accretion around rotating black holes A., Utsumi; K.Ohsuga;H; R. Takahashi; Y., Asahina
The 9th East Asian Numerical Astrophysics Meeting (EANAM9)
509. General relativistic radiation-MHD simulations of super-Eddington accretion flows ; powerful outflows around neutron stars with dipole magnetic fields A., Inoue; K., Ohsuga;H; R. Takahashi; Y., Asahina
The 9th East Asian Numerical Astrophysics Meeting (EANAM9)
510. Development of Novel General Relativistic Radiative Transfer Code; CARTOON M., Takahashi; K., Ohsuga; R., Takahashi; T., Ogawa; M., Umemura; Y., Asahina
The 9th East Asian Numerical Astrophysics Meeting (EANAM9)
511. Formation of Supermassive Black Holes through Gas Accretion on Moving Black Holes E., Ogata; K., Ohsuga; H., Fukushima; H., Yajima
The 9th East Asian Numerical Astrophysics Meeting (EANAM9)
512. Structure Formation in the Universe using Radiation Transfer?; Radiation Hydrodynamics Simulations Ohsuga, Ken
The 30th Anniversary Symposium of the Center for Computational Sciences
513. Computations of images, photon ; neutrino spectra using a general relativistic radiative transfer code RAIKOU Kawashima, T; Ohsuga, K; Takahashi, H.R; Asano, K
The 9th East Asian Numerical Astrophysics Meeting (EANAM9)
514. Images, Radiation ; Neutrino Spectra of Black Hole Accretion Flows Computed by GRRT Code RAIKOU Kawashima, T; Asano, K; Ohsuga, K; Takahashi, H.R
The 15th Asia Pacific Physics Conference (APPC15) 招待有り
515. Images ; Spectra of Black hole Accretion Flows Computed by GRRT Code RAIKOU Kawashima, T; Ohsuga, K; Takahashi, H.R
6th Asia Pacific Conference on Plasma Physics (AAPPS-DPP 2022) 招待有り
516. General relativistic magneto-hydrodynamic simulations of super-Eddington accretion flows ; powerful outflows around neutron stars with dipole magnetic fields Inoue, A; Ohsuga, K; Takahashi, H. R; Asahina, Y
Magnetism & Accretion
517. General relativistic radiation-MHD simulations of super-Eddington accretion flows onto neutron stars: spin-up rate of ULX pulsars Inoue, A; Ohsuga, K; Takahashi, H. R; Asahina, Y
Black hole astrophysics with VLBI 2023
518. Time variation of the crescent shaped shadow ; the measurement of the black hole spin in M87 Takahashi, M; Ohsuga, K; Kawashima, T
Black hole astrophysics with VLBI 2023
519. Lense-Thirring precession of accretion flows ; relativistic jets Kawashima, T; Hitomi, T; Ohsuga, K; Takahashi, H.R
Black hole astrophysics with VLBI 2023
520. Polarized Radiative Transfer: Linking the Images ; Magnetic Fields around Black Holes Tsunetoe, Y; Mineshige, S; Kawashima, T; Ohsuga, K; Akiyama, K; Takahashi, H.R
Black hole astrophysics with VLBI 2023 招待有り