中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mass-redshift degeneracy for the gravitational-wave sources in the vicinity of supermassive black holes

文献类型:期刊论文

作者Chen, Xian1,5; Li, Shuo3,4; Cao, Zhoujian2
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2019-05-01
卷号485期号:1页码:L141-L145
ISSN号0035-8711
关键词black hole physics gravitational waves methods: analytical stars: kinematics and dynamics galaxies: nuclei
DOI10.1093/mnrasl/slz046
英文摘要Retrieving the mass of a gravitational-wave (GW) source is a fundamental but difficult problem because the mass is degenerate with redshift. In astronomy, three types of redshift exist, namely cosmological, Doppler, and gravitational redshift, but the latter two are normally too weak to affect the observation. In this Letter, we show that the current astrophysical models allow binary black holes (BBHs) to merge within 10 Schwarzschild radii of a supermassive black hole (SMBH). We find that in this case both the Doppler and gravitational redshift are significant, and in the most extreme condition they could increase the 'apparent' black-hole mass and distance by a factor of 1.9-3.4. We show that such a factor is consistent with the distribution in the distance-mass diagram of the 10 BBHs detected so far by LIGO/Virgo. We also discuss the difficulties of this redshift scenario caused by the low event rate predicted by the current models, as well the potential solutions.
资助项目'985 Project' of Peking University ; NSFC[11873022] ; NSFC[11773059] ; NSFC[11303039] ; NSFC[11622546] ; NSFC[11375260] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDB23040100] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDB23010200] ; Silk Road Project of the National Astronomical Observatories, CAS
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000482695700029
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/35686]  
专题应用数学研究所
通讯作者Chen, Xian
作者单位1.Peking Univ, Sch Phys, Astron Dept, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Chen, Xian,Li, Shuo,Cao, Zhoujian. Mass-redshift degeneracy for the gravitational-wave sources in the vicinity of supermassive black holes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,485(1):L141-L145.
APA Chen, Xian,Li, Shuo,&Cao, Zhoujian.(2019).Mass-redshift degeneracy for the gravitational-wave sources in the vicinity of supermassive black holes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,485(1),L141-L145.
MLA Chen, Xian,et al."Mass-redshift degeneracy for the gravitational-wave sources in the vicinity of supermassive black holes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 485.1(2019):L141-L145.

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来源:数学与系统科学研究院

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