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Relation between X-ray black hole mass and X-ray variability: Expectation for MAXI
https://jaxa.repo.nii.ac.jp/records/5274
https://jaxa.repo.nii.ac.jp/records/527400533464-536b-4028-88b2-1f1efca754a8
名前 / ファイル | ライセンス | アクション |
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64306035.pdf (720.2 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 | Relation between X-ray black hole mass and X-ray variability: Expectation for MAXI | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | active - galaxies : nuclei - X-rays : galaxies : variability : black hole | |||||
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 |
林田, 清
× 林田, 清× Hayashida, Kiyoshi |
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著者所属 | ||||||
大阪大学大学院理学研究科宇宙地球科学専攻 | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Earth and Space Science, Osaka 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: Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop 巻 JAXA-SP-08-014E, p. 174-179, 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 | X-ray variability of AGNs has been employed to constrain the size of the emission region as well as the mechanism of the emission. We propose an empirical method to estimate the black hole (BH) masses in AGNs from their X-ray variability and apply the method to various classes of AGNs, broad line Seyfert 1 galaxies (BLS1s), narrow line Seyfert 1 galaxies (NLS1s), and low luminosity AGNs (LLAGN). Stability of the power spectrum density is examined, and alternative definitions of the variability time scales are compared. Comparison with independent BH mass estimation indicates X-ray variability provides order of magnitude estimation for the BH mass scale, though deviation is evident in some cases. Further studies with various AGNs at various flux states reveal how the X-ray variability is affected by other parameters than BH mass, e.g., accretion rate or class of AGNs. We expect for long term observations with MAXI to provide clue to such an issue. | |||||
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: AA0064306035 | |||||
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 |