A Monte Carlo study of the spectra from inhomogeneous accretion flow
文献类型：期刊论文
| 作者 | Yu XiaoDi1; Li YaPing2; Xie FuGuo2; Ma RenYi1 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2017 |
| 卷号 | 17期号:8 |
| 关键词 | X-RAY BINARIES ACTIVE GALACTIC NUCLEI ADVECTION-DOMINATED ACCRETION BLACK-HOLE CANDIDATES STATE TRANSITIONS LOW/HARD STATE DISKS HYSTERESIS BEHAVIOR DISCS accretion, accretion disks X-rays: binaries stars: black holes |
| ISSN号 | 1674-4527 |
| 英文摘要 | A model of an inhomogeneous accretion flow, in which cold clumps are surrounded by hot gas or corona, has been proposed to explain the spectral features of black hole X-ray binaries. In this work, we try to find possible observational features in the continuum that can indicate the existence of clumps. The spectra of an inhomogeneous accretion flow are calculated via the Monte Carlo method. Since the corresponding accretion flow is unsteady and complex, the accretion flow is described by a set of free parameters, the ranges of which can include the real cases. The influences of the parameters are investigated. It is found that the thermal component of the spectra deviates from multi-color black body spectra in the middle power-law part. On one hand, a warp appears due to the gaps between the clumps and the outer cold disk, and on the other hand, the slope of the line connecting the thennal peaks deviates from 4/3. The warp feature, as well as the correlation between the thermal peak at higher frequency and the spectral index, possibly indicate the existence of clumps, and are worthy of further investigation with more self-consistent models. |
| 资助项目 | [National Natural Science Foundation of China] ; [Fundamental Research Funds for the Central Universities] ; [Youth Innovation Promotion Association of CAS] ; [National Basic Research Program of China (973 Program)] ; [Strategic Priority Research Program 'The Emergence of Cosmological Structures' of CAS] ; [CAS/SAMBA International Partnership Program for Creative Research Teams] ; [Natural Science Foundation of Shanghai] ; [Shanghai Sailing Program] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/61384]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.厦门大学 2.中国科学院国家天文台 3.同济大学 |
| 推荐引用方式 GB/T 7714 | Yu XiaoDi,Li YaPing,Xie FuGuo,et al. A Monte Carlo study of the spectra from inhomogeneous accretion flow[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(8). |
| APA | Yu XiaoDi,Li YaPing,Xie FuGuo,&Ma RenYi.(2017).A Monte Carlo study of the spectra from inhomogeneous accretion flow.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(8). |
| MLA | Yu XiaoDi,et al."A Monte Carlo study of the spectra from inhomogeneous accretion flow".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.8(2017). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。