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Radiation hydrodynamic / radiation magnetohydrodynamic simulations of accretion flows and outflows around black holes
https://jaxa.repo.nii.ac.jp/records/5269
https://jaxa.repo.nii.ac.jp/records/52697c946e9f-8ca2-41ad-882f-8243c7ccaa21
名前 / ファイル | ライセンス | アクション |
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64306030.pdf (447.2 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Radiation hydrodynamic / radiation magnetohydrodynamic simulations of accretion flows and outflows around black holes | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | black holes - accretion disks - numerical simulations | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
大須賀, 健
× 大須賀, 健× Ohsuga, Ken |
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著者所属 | ||||||
理化学研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Physical and Chemical Research (RIKEN) | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop 巻 JAXA-SP-08-014E, p. 148-151, 発行日 2009-02-27 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop (RIKEN, 10-12 June 2008) | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We perform global two-dimensional radiation hydrodynamic (RHD) and radiation magnetohydrodynamic (RMHD) simulations of accretion flows around black holes. Our RHD simulations reveal that the steady, supercritical accretion is feasible. The disk luminosity is several times larger than the Eddington luminosity. The disk is geometrically and optically thick. It is supported by the radiation pressure. The strong radiation pressure force drives the outflow above the disk. Our RMHD simulations demonstrate three distinct modes of accretion. When the density is large, a thick, very luminous disk forms. When the density is moderate, the accreting gas can effectively cool, thus generating a thin disk. When the density is too low for radiative cooling to be important, a disk becomes hot, thick, and faint. Strong outflows emerge, which are driven either by radiation pressure force for the dense disk or magnetic pressure force for the less dense disks. | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0064306030 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-08-014E |