NAOC Open IR
Estimating the Black Hole Spin for the X-Ray Binary MAXI J1820+070
Zhao, Xueshan1,2; Gou, Lijun1,2; Dong, Yanting1,3; Tuo, Youli4; Liao, Zhenxuan1,2; Li, Yufeng1,2; Jia, Nan1,2; Feng, Ye1,2; Steiner, James F.5
2021-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume916Issue:2Pages:14
AbstractMAXI J1820+070 is a newly discovered black hole X-ray binary, whose dynamical parameters, namely the black hole mass, the inclination angle, and the source distance, have recently been estimated. Insight-HXMT have observed its entire outburst from 2018 March 14. In this work, we attempted to estimate the spin parameter a (*), using the continuum-fitting method and applying a fully relativistic thin disk model to the soft-state spectra obtained by Insight-HXMT. It is well known that a (*) is strongly dependent on three dynamical parameters in this method, and we have examined two sets of parameters. Adopting our preferred parameters: M = 8.48(-0.72)(+0.79)M(circle dot), i = 63 degrees +/- 3 degrees, and D = 2.96 +/- 0.33 kpc, we found a slowly spinning black hole of a* = 0.14 +/- 0.09 (1 sigma), which gives a prograde spin parameter as the majority of other systems show. It is also possible for the black hole to have a retrograde spin (less than 0) if different dynamical parameters are taken.
Funding OrganizationChina National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
DOI10.3847/1538-4357/ac07a9
WOS KeywordCONTINUUM-FITTING METHOD ; THIN ACCRETION DISK ; BACKGROUND MODEL ; SOFT STATE ; ENERGY ; SIMULATIONS ; VARIABILITY ; EXTRACTION ; TELESCOPE ; EMISSION
Language英语
Funding ProjectChina National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project[2016YFA0400804] ; National Program on Key Research and Development Project[2016YFA0400800] ; National Program on Key Research and Development Project[2016YFA0400801] ; NSFC[U1838114] ; NSFC[U1838201] ; NSFC[U1838202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100]
Funding OrganizationChina National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000681055900001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76177
Collection中国科学院国家天文台
Corresponding AuthorZhao, Xueshan
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, Datun Rd 20A, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Yuquan Rd 19A, Beijing 100049, Peoples R China
3.Zhejiang Univ, Zhejiang Inst Modern Phys, Dept Phys, 38 Zheda Rd, Hangzhou 310027, Peoples R China
4.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China
5.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
Recommended Citation
GB/T 7714
Zhao, Xueshan,Gou, Lijun,Dong, Yanting,et al. Estimating the Black Hole Spin for the X-Ray Binary MAXI J1820+070[J]. ASTROPHYSICAL JOURNAL,2021,916(2):14.
APA Zhao, Xueshan.,Gou, Lijun.,Dong, Yanting.,Tuo, Youli.,Liao, Zhenxuan.,...&Steiner, James F..(2021).Estimating the Black Hole Spin for the X-Ray Binary MAXI J1820+070.ASTROPHYSICAL JOURNAL,916(2),14.
MLA Zhao, Xueshan,et al."Estimating the Black Hole Spin for the X-Ray Binary MAXI J1820+070".ASTROPHYSICAL JOURNAL 916.2(2021):14.
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