Testing the relativistic Doppler boost hypothesis for supermassive binary black holes candidates via broad emission line profiles
文献类型：期刊论文
| 作者 | Song, Zihao1,2; Ge, Junqiang1; Lu, Youjun1,2; Ji, Xiang1,2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2020 |
| 卷号 | 491期号:3页码:4023-4030 |
| 关键词 | black hole physics line: profiles galaxies: active |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stz3354 |
| 英文摘要 | Optical periodicity QSOs found by transient surveys are suggested to be subparsec supermassive binary black holes (BBHs). An intriguing interpretation for the periodicity of some of those QSOs is that the continuum is radiated from the accretion disc associated with the BBH secondary component and modulated by the periodical rotation of the secondary via Doppler-boost effect. Close to edge-on orbital orientation can lead to more significant Doppler-boost effect and thus are preferred for these systems, which is distinct from those normal type-1 QSOs with more or less face-on orientations. Therefore, the profiles of broad lines emitted from these Doppler-modulated systems may be significantly different from other systems that are not Doppler modulated. We investigate the properties of the broad emission lines of optical-periodicity QSOs, including both a sample of QSOs that can be interpreted by the Doppler-modulated effects and a sample that cannot. We find that there is no obvious difference in the profiles and other properties of various (stacked) broad emission lines of these two samples, though a simple broad line region model would suggest significant differences. Our finding raises a challenge to the Doppler boost hypothesis for some of those BBHs candidates with optical periodicity. |
| WOS关键词 | REVERBERATION MAPPING DATA ; ACTIVE GALACTIC NUCLEI ; QUASARS ; PERIODICITY ; STRENGTHS ; MODELS ; MASS |
| 资助项目 | National Key Program for Science and Technology Research and Development[2016YFA0400704] ; National Natural Science Foundation of China (NSFC)[11690024] ; National Natural Science Foundation of China (NSFC)[11873056] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB 23040100] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000512306500068 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/54172]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Lu, Youjun |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Zihao,Ge, Junqiang,Lu, Youjun,et al. Testing the relativistic Doppler boost hypothesis for supermassive binary black holes candidates via broad emission line profiles[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,491(3):4023-4030. |
| APA | Song, Zihao,Ge, Junqiang,Lu, Youjun,&Ji, Xiang.(2020).Testing the relativistic Doppler boost hypothesis for supermassive binary black holes candidates via broad emission line profiles.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,491(3),4023-4030. |
| MLA | Song, Zihao,et al."Testing the relativistic Doppler boost hypothesis for supermassive binary black holes candidates via broad emission line profiles".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 491.3(2020):4023-4030. |
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来源：国家天文台
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