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New Spectral State of Supercritical Accretion Flow with Comptonizing Outflow: Application to Bright ULXs
https://jaxa.repo.nii.ac.jp/records/5048
https://jaxa.repo.nii.ac.jp/records/50480242e447-008a-484c-a907-f2085072ab4c
名前 / ファイル | ライセンス | アクション |
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64574116.pdf (179.1 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 | New Spectral State of Supercritical Accretion Flow with Comptonizing Outflow: Application to Bright ULXs | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | accretion, accretion disks - black hole physics - hydrodynamics - radiative transfer | |||||
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 |
川島, 朋尚
× 川島, 朋尚× 大須賀, 健× 嶺重, 慎× 高部, 英明× 松元, 亮治× Kawashima, Tomohisa× Ohsuga, Ken× Mineshige, Shin× Heinzeller, Dominikus× Takabe, Hideaki× Matsumoto, Ryoji |
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著者所属 | ||||||
千葉大学理学研究科物理学コース | ||||||
著者所属 | ||||||
国立天文台 | ||||||
著者所属 | ||||||
京都大学大学院理学研究科宇宙物理学教室 | ||||||
著者所属 | ||||||
京都大学大学院理学研究科宇宙物理学教室 | ||||||
著者所属 | ||||||
大阪大学レーザーエネルギー学研究センター | ||||||
著者所属 | ||||||
千葉大学理学研究科物理学コース | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Physics, Graduate School of Science, Chiba University | ||||||
著者所属(英) | ||||||
en | ||||||
National Astronomical Observatory of Japan | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Laser Engineering, Osaka University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Physics, Graduate School of Science, Chiba University | ||||||
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: The Energetic Cosmos; from Suzaku to ASTRO-H 巻 JAXA-SP-09-008E, p. 306-307, 発行日 2010-02-26 |
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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 | The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Supercritical accretion flows inevitably produce radiation-pressure driven outflows, which will Compton up-scatter soft photons from the underlying accretion flow, thereby making hard emission. We performed two dimensional radiation hydrodynamic simulations of supercritical accretion flows and outflows, incorporating such Compton scattering effects, and demonstrate that there appears a new hard spectral state "Comptonizing outflow state" at higher photon luminosities than that of the slim-disk state. In this state, as the photon luminosity increases, the photon index decreases and the fraction of the hard emission increases. The Compton y-parameter is of the order of unity (and thus the photon index will be approximately 2) when the apparent photon luminosity is approximately 30L(sub E) (with L(sub E) being the Eddington luminosity) for nearly face-on sources. This explains the fact that brighter ULXs possess harder X-ray spectra (Berghea et al. 2008). Furthermore, expected SED of the Comptonizing outflow state is consistent with that of the ultraluminous state, which consists of the disk and the cool, optically thick corona (Gladstone et al. 2009). | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science | |||||
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: AA0064574116 | |||||
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-09-008E |