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アイテム
Accretion of Stellar Winds in the Galactic Centre
https://jaxa.repo.nii.ac.jp/records/4982
https://jaxa.repo.nii.ac.jp/records/4982a662dbc4-db71-4a6b-ac46-856007586cc0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
64574050.pdf (301.8 kB)
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| アイテムタイプ | 会議発表論文 / Conference Paper(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||
| タイトル | ||||||||
| タイトル | Accretion of Stellar Winds in the Galactic Centre | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | Galaxy: centre - accretion: accretion discs - galaxies: active - stars: winds, outflows | |||||||
| 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 |
Cuadra, Jorge
× Cuadra, Jorge
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| 著者所属（英） | ||||||||
| en | ||||||||
| Shanghai Astronomical Observatory | ||||||||
| 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. 130-133, 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 | We report a 3-dimensional numerical study of the gas dynamics around Sgr A(sup *), the super-massive black hole at the centre of our Galaxy. We follow the gas from its origin as stellar winds, until its capture by the black hole. Compared with previous investigations, we allow the stars to be on realistic orbits, include the recently discovered slow wind sources, and allow for optically thin radiative cooling. We find that the slow winds shock and rapidly cool, forming cold gas clumps and filaments that coexist with the hot X-ray emitting gas. The accretion rate is on average consistent with the Bondi estimate, but highly variable on time-scales of tens to hundreds of years. Such variability could lead to a strongly non-linear response through accretion flow physics not resolved in our simulations, and it could even make Sgr A(sup *)'s X-ray luminosity reach the high values implied by the observation of nearby X-ray reflection nebulae. | |||||||
| 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: AA0064574050 | |||||||
| 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 | |||||||
