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The spin measurement of the black hole in 4U 1543-47 constrained with the X-ray reflected emission
Dong, Yanting1,2; Garcia, Javier A.3,4,5; Steiner, James F.6,7; Gou, Lijun1,2
2020-04-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume493Issue:3Pages:4409-4417
Abstract4U 1543-47 is a low-mass X-ray binary that harbours a stellar-mass black hole located in our Milky Way galaxy. In this paper, we revisit seven data sets that were in the Steep Power Law state of the 2002 outburst. The spectra were observed by the Rossi X-ray Timing Explorer. We have carefully modelled the X-ray reflection spectra and made a joint-fit to these spectra with relxill for the reflected emission. We found a moderate black hole spin, which is 0.67(-0.08)(+0.15) at 90 per cent statistical confidence. Negative and low spins (<0.5) at more than 99 per cent statistical confidence are ruled out. In addition, our results indicate that the model requires a supersolar iron abundance: 5.05(-0.26)(+1.21), and the inclination angle of the inner disc is 36.3(-3.4)(+5.3) deg. This inclination angle is appreciably larger than the binary orbital inclination angle (similar to 21 deg); this difference is possibly a systematic artefact of the artificially low density employed in the reflection model for this X-ray binary system.
Keywordaccretion, accretion discs stars: individual: IL Lupi, 4U 1543-47 X-rays: binaries
Funding OrganizationNational Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
DOI10.1093/mnras/staa606
WOS KeywordACCRETION DISK ; MASS ; CALIBRATION ; EVOLUTION ; BINARIES ; STAR ; I.
Language英语
Funding ProjectNational Program on Key Research and Development Project[2016YFA0400804] ; National Natural Science Foundation of China[U1838114] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100]
Funding OrganizationNational Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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:000526035600095
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/56081
Collection中国科学院国家天文台
Corresponding AuthorDong, Yanting; Gou, Lijun
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA
4.Dr Karl Remeis Observ, Stemwartstr 7, D-96049 Bamberg, Germany
5.Erlangen Ctr Astroparticle Phys, Stemwartstr 7, D-96049 Bamberg, Germany
6.CfA, 60 Garden St, Cambridge, MA 02138 USA
7.MIT, MIT Kavli Inst Astrophys & Space Res, 70 Vassar St, Cambridge, MA 02139 USA
Recommended Citation
GB/T 7714
Dong, Yanting,Garcia, Javier A.,Steiner, James F.,et al. The spin measurement of the black hole in 4U 1543-47 constrained with the X-ray reflected emission[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,493(3):4409-4417.
APA Dong, Yanting,Garcia, Javier A.,Steiner, James F.,&Gou, Lijun.(2020).The spin measurement of the black hole in 4U 1543-47 constrained with the X-ray reflected emission.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,493(3),4409-4417.
MLA Dong, Yanting,et al."The spin measurement of the black hole in 4U 1543-47 constrained with the X-ray reflected emission".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 493.3(2020):4409-4417.
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