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Neutron Star-Black Hole Coalescence Rate Inferred from Macronova Observations
Li, Xiang1; Hu, Yi-Ming2,3,4; Jin, Zhi-Ping1,5; Fan, Yi-Zhong1,5; Wei, Da-Ming1,5
2017-08-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume844Issue:2Pages:5
Abstract

Neutron star-black hole (NS-BH) coalescences are widely believed to be promising gravitational-wave sources in the era of advanced detectors of LIGO/Virgo, but the rate of this population is highly uncertain due to the lack of direct detection of such binaries. There is growing evidence for the connection between the observed three luminous macronova (also known as kilonova) events and NS-BH mergers. In this work, we propose, for the first time based on such a link, a fiducial lower limit of NS-BH coalescence rate density R-nsbh approximate to 18.8(-8.6)(+12.5) Gpc(-3) yr(-0.1) (theta(j)/0.1 rad)(-2) ,where theta(j) is the typical half-opening angle of the GRB ejecta. After marginalizing over distributions of black hole masses and spins, we find a rate density R-nsbh >= 10(2) Gpc(-3) yr(-1), depending upon the equation of state (EoS) of NS material and the properties of the NS-BH system. With the O1 non-observation by advanced LIGO, we show a preference for NS-BH systems with a stiffer NS EoS and a larger contribution from low-mass/high-spin BHs. Our estimate predicts the first detection of an NS-BH system can be as early as the late O2 run or the early O3 run. We expect that future multi-messenger observations can much better constrain NS-BH systems' properties.

Keywordgravitational waves stars: black holes stars: neutron
DOI10.3847/2041-8213/aa7fb2
WOS KeywordGAMMA-RAY BURSTS ; GRAVITATIONAL-WAVE DETECTION ; MERGERS ; BINARIES ; PROGENITORS ; CONSTRAINTS ; AFTERGLOWS ; EVOLUTION ; DISCOVERY ; EMISSION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000406597400004
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22647
Collection中国科学院紫金山天文台
Corresponding AuthorHu, Yi-Ming
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
2.Sun Yat Sen Univ, TianQin Res Ctr Gravitat Phys, Zhuhai 519082, Peoples R China
3.Max Planck Inst Gravitat Phys, Albert Einstein Inst, Callinstr 38, D-30167 Hannover, Germany
4.Tsinghua Univ, 30 Shuangqing Rd, Beijing 100084, Peoples R China
5.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiang,Hu, Yi-Ming,Jin, Zhi-Ping,et al. Neutron Star-Black Hole Coalescence Rate Inferred from Macronova Observations[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,844(2):5.
APA Li, Xiang,Hu, Yi-Ming,Jin, Zhi-Ping,Fan, Yi-Zhong,&Wei, Da-Ming.(2017).Neutron Star-Black Hole Coalescence Rate Inferred from Macronova Observations.ASTROPHYSICAL JOURNAL LETTERS,844(2),5.
MLA Li, Xiang,et al."Neutron Star-Black Hole Coalescence Rate Inferred from Macronova Observations".ASTROPHYSICAL JOURNAL LETTERS 844.2(2017):5.
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