An inner disk below the ADAF: the intermediate spectral state of black hole accretion
文献类型：期刊论文
| 作者 | Liu BF(刘碧芳)1 ; Meyer, F2; Meyer-Hofmeister, E2
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| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2006-07 |
| 卷号 | 454期号:1页码:L9-L12 |
| 关键词 | accretion, accretion disks black hole physics X-rays : binaries |
| ISSN号 | 0004-6361 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Liu, BF |
| 英文摘要 | Aims. The hard and soft spectral states of black hole accretion are understood as connected with ADAF accretion (truncated disk) and standard disk accretion, respectively. However, observations indicate the existence of cool gas in the inner region at times when the disk is already truncated outside. We try to shed light on these not yet understood intermediate states. Methods. The disk-corona model allows to understand the spectral state transitions as caused by changes of the mass flow rate in the disk and provides a picture for the accretion geometry when disk truncation starts at the time of the soft/hard transition, the formation of a gap in the disk filled by an advection-dominated flow (ADAF) at the distance where the evaporation is maximal. We study the interaction of such an ADAF with an inner thin disk below. Results. We show that, when the accretion rate is not far below the transition rate, an inner disk could exist below an ADAF, leading to an intermediate state of black hole accretion. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ADVECTION-DOMINATED ACCRETION ; NOVA MUSCAE 1991 ; X-RAY BINARIES ; CORONAL FLOW ; THIN DISK ; EVAPORATION ; PLASMAS |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.aanda.org/articles/aa/abs/2006/28/aa5430-06/aa5430-06.html |
| 语种 | 英语 |
| WOS记录号 | WOS:000238726300003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4947]  |
| 专题 | 云南天文台_高能天体物理研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming 650011, PR China 2.Max-Planck-Institut für Astrophysik, Karl- Schwarzschildstr. 1, 85740 Garching, Germany |
| 推荐引用方式 GB/T 7714 | Liu BF,Meyer, F,Meyer-Hofmeister, E. An inner disk below the ADAF: the intermediate spectral state of black hole accretion[J]. ASTRONOMY & ASTROPHYSICS,2006,454(1):L9-L12. |
| APA | Liu BF,Meyer, F,&Meyer-Hofmeister, E.(2006).An inner disk below the ADAF: the intermediate spectral state of black hole accretion.ASTRONOMY & ASTROPHYSICS,454(1),L9-L12. |
| MLA | Liu BF,et al."An inner disk below the ADAF: the intermediate spectral state of black hole accretion".ASTRONOMY & ASTROPHYSICS 454.1(2006):L9-L12. |
入库方式： OAI收割
来源：云南天文台
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