NAOC Open IR
Stochastic gravitational wave background and eccentric stellar compact binaries
Zhao, Yuetong1,2; Lu, Youjun1,2
2021
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume500Issue:1Pages:1421-1436
AbstractGravitational wave (GW) radiation from numerous cosmic stellar compact binaries forms a stochastic GW background (GWB), which we expect to be detected by ground and space GW detectors in future. Theoretical predictions of this GWB have mostly been obtained by assuming either circular binaries and/or a specific channel for binary formation, which may have some uncertainties. In this work, we estimate the GWB and its spectrum by using simple models for the formation of both stellar-mass binary black holes (sBBHs) and binary neutron stars (BNSs). We consider that dynamically originated sBBHs have relatively larger masses and higher eccentricities compared with field binary stars and their possible effects on the GWB spectrum. We find that the GWB spectrum may have a turnover in the low-frequency (Laser Interferometer Space Antenna: LISA) band and may be better described by a broken double power law than a single power law with the unique index 2/3; the low-frequency slope depends on the significance of dynamically originated sBBHs with high eccentricities. We also generate mock samples of sBBHs and BNSs and simulate the mock GWB strain in the time domain. We find that GWBs can be detected with signal-to-noise ratio (SNR) greater than or similar to 274, 255, and 21 by LISA, Taiji, and TianQin over 5 ars of observations and greater than or similar to 3 by LIGO over 2 years of observations. Furthermore, we estimate that the number of sBBHs that may be detected by LISA, Taiji, and TianQin individually with SNR greater than or similar to 8 is similar to 5-221, 7-365, and 3-223, respectively, over 5 years of observations.
Keywordblack hole physics gravitational waves stars: black holes stars: neutron black hole mergers neutron star mergers
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; National Natural Science Foundation of China ; 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 ; National Natural Science Foundation of China ; 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 ; National Natural Science Foundation of China ; 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
DOI10.1093/mnras/staa2707
WOS KeywordBLACK-HOLE BINARIES ; COSMIC MERGER RATE ; GLOBULAR-CLUSTERS ; EVOLUTION ; STARS ; METALLICITY ; PROGENITORS ; RADIATION ; OBJECTS ; IMPACT
Language英语
Funding ProjectNational Natural Science Foundation of China[11690024] ; National Natural Science Foundation of China[11873056] ; National Natural Science Foundation of China[11991052] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB 23040100] ; National Key Program for Science and Technology Research and Development[2016YFA0400704]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; National Natural Science Foundation of China ; 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 ; National Natural Science Foundation of China ; 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 ; National Natural Science Foundation of China ; 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
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000599134600106
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80252
Collection中国科学院国家天文台
Corresponding AuthorLu, Youjun
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Computat Astrophys, 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
Zhao, Yuetong,Lu, Youjun. Stochastic gravitational wave background and eccentric stellar compact binaries[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,500(1):1421-1436.
APA Zhao, Yuetong,&Lu, Youjun.(2021).Stochastic gravitational wave background and eccentric stellar compact binaries.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,500(1),1421-1436.
MLA Zhao, Yuetong,et al."Stochastic gravitational wave background and eccentric stellar compact binaries".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 500.1(2021):1421-1436.
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
[Zhao, Yuetong]'s Articles
[Lu, Youjun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, Yuetong]'s Articles
[Lu, Youjun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, Yuetong]'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.