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Black Hole Mass Function of Coalescing Neutron Star Black Hole Binary Systems: The Prospect of Reconstruction with the Gravitational Wave Observations
Tang, Shao-Peng1,2; Wang, Hao3; Wang, Yuan-Zhu1; Han, Ming-Zhe1,2; Fan, Yi-Zhong1,2; Wei, Da-Ming1,2
2020-03-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume892Issue:1Pages:10
Abstract

The discovery of gravitational waves from compact objects coalescence opens a brand-new window to observe the universe. With more events being detected in the future, statistical examinations would be essential to better understand the underlying astrophysical processes. In this work we investigate the prospect of measuring the mass function of black holes that are merging with the neutron stars. Applying Bayesian parameter estimation for hundreds of simulated neutron star-black hole (NSBH) mergers, we find that the parameters for most of the injected events can be well recovered. We also take a Bayesian hierarchical model to reconstruct the population properties of the masses of black holes, in the presence of a low mass gap, both the mass gap and power-law index (alpha) of black hole mass function can be well measured, thus we can reveal where the alpha is different for binary black hole (BBH) and NSBH systems. In the absence of a low mass gap, the gravitational wave data as well as the electromagnetic data can be used to pin down the nature of the merger event and then measure the mass of these very light black holes. However, as a result of the misclassification of BBH into NSBH, the measurement of alpha is more challenging and further dedicated efforts are needed.

KeywordGravitational waves Black holes Compact objects
DOI10.3847/1538-4357/ab77bf
WOS KeywordNUCLEOSYNTHESIS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000522410200001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35796
Collection中国科学院紫金山天文台
Corresponding AuthorFan, Yi-Zhong
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210033, Peoples R China
2.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
3.Purdue Univ, Dept Phys & Astron, 525 Northwestern Ave, W Lafayette, IN 47906 USA
Recommended Citation
GB/T 7714
Tang, Shao-Peng,Wang, Hao,Wang, Yuan-Zhu,et al. Black Hole Mass Function of Coalescing Neutron Star Black Hole Binary Systems: The Prospect of Reconstruction with the Gravitational Wave Observations[J]. ASTROPHYSICAL JOURNAL,2020,892(1):10.
APA Tang, Shao-Peng,Wang, Hao,Wang, Yuan-Zhu,Han, Ming-Zhe,Fan, Yi-Zhong,&Wei, Da-Ming.(2020).Black Hole Mass Function of Coalescing Neutron Star Black Hole Binary Systems: The Prospect of Reconstruction with the Gravitational Wave Observations.ASTROPHYSICAL JOURNAL,892(1),10.
MLA Tang, Shao-Peng,et al."Black Hole Mass Function of Coalescing Neutron Star Black Hole Binary Systems: The Prospect of Reconstruction with the Gravitational Wave Observations".ASTROPHYSICAL JOURNAL 892.1(2020):10.
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