NAOC Open IR
Testing the relativistic Doppler boost hypothesis for supermassive binary black holes candidates via broad emission line profiles
Song, Zihao1,2; Ge, Junqiang1; Lu, Youjun1,2; Ji, Xiang1,2
2020
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume491Issue:3Pages:4023-4030
AbstractOptical 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.
Keywordblack hole physics line: profiles galaxies: active
Funding OrganizationNational 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
DOI10.1093/mnras/stz3354
WOS KeywordREVERBERATION MAPPING DATA ; ACTIVE GALACTIC NUCLEI ; QUASARS ; PERIODICITY ; STRENGTHS ; MODELS ; MASS
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000512306500068
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/54173
Collection中国科学院国家天文台
Corresponding AuthorLu, Youjun
Affiliation1.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
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Song, Zihao]'s Articles
[Ge, Junqiang]'s Articles
[Lu, Youjun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Song, Zihao]'s Articles
[Ge, Junqiang]'s Articles
[Lu, Youjun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Song, Zihao]'s Articles
[Ge, Junqiang]'s Articles
[Lu, Youjun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.