KMS Of Academy of mathematics and systems sciences, CAS
| Mass-redshift degeneracy for the gravitational-wave sources in the vicinity of supermassive black holes | |
Chen, Xian1,2; Li, Shuo3,4; Cao, Zhoujian5
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| 2019-05-01 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| ISSN | 0035-8711 |
| Volume | 485Issue:1Pages:L141-L145 |
| Abstract | 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. |
| Keyword | black hole physics gravitational waves methods: analytical stars: kinematics and dynamics galaxies: nuclei |
| DOI | 10.1093/mnrasl/slz046 |
| Language | 英语 |
| Funding Project | '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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000482695700029 |
| Publisher | OXFORD UNIV PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.amss.ac.cn/handle/2S8OKBNM/35687 |
| Collection | 应用数学研究所 |
| Corresponding Author | Chen, Xian |
| Affiliation | 1.Peking Univ, Sch Phys, Astron Dept, Beijing 100871, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China |
| Recommended Citation 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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