KMS National Astronomical Observatories, CAS
Confirming the spin parameter of the black hole in Cygnus X-1 using the Insight-HXMT | |
Zhao, Xue-Shan1,2; Dong, Yan-Ting1,2; Gou, Li-Jun1,2![]() | |
2020-08-01 | |
Source Publication | JOURNAL OF HIGH ENERGY ASTROPHYSICS
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ISSN | 2214-4048 |
Volume | 27Pages:53-63 |
Abstract | Recently, the system parameters of Cygnus X-1, i.e., the black hole mass M, the orbital inclination iand the source distance D, have been updated. As the input constraints of the continuum-fitting method, it is necessary to refine the spin with these new parameters. The Hard X-ray Modulation Telescope(HXMT, also named Insight) was successfully launched on June 15th, 2017 in China. In this work, we analyzed spectra obtained by the Insight-HXMT during 2017-2018 and re-estimated the spin via the continuum-fitting method. We first re-estimated the spin using old parameters and found the dimensionless spin parameter to be a(*)> 0.934(3 sigma), which is consistent with previous measurements both from the continuum-fitting and iron-line fitting methods (Gou etal. 2011, Gou etal. 2014; Fabian etal. 2012, Walton etal. 2016, Tomsick etal. 2018). Then, when the new parameters were applied, we obtained an increased spin: a(*)> 0.967(3 sigma), which is also consistent with the recent measurement (Zhao etal. 2020, submitted to ApJ) and also confirms an extreme Kerr black hole lying in this system. (C) 2020 Elsevier B.V. All rights reserved. |
Keyword | Insight-HXMT Black hole physics X-rays: binaries X-rays: individual (Cygnus X-1) |
Funding Organization | 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) |
DOI | 10.1016/j.jheap.2020.03.001 |
WOS Keyword | ACCRETION DISK MODELS ; X-RAY ; ENERGY ; FLUORESCENCE ; SIMULATIONS ; REFLECTION ; EXTRACTION ; SPECTRA ; STRESS |
Language | 英语 |
Funding Project | China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project[2016YFA0400800] ; National Program on Key Research and Development Project[2016YFA0400801] ; National Program on Key Research and Development Project[2016YFA0400804] ; NSFC[U1838114] ; NSFC[U1838201] ; NSFC[U1838202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100] ; National Natural Science Foundation of China (NSFC)[11773035] ; National Natural Science Foundation of China (NSFC)[U1938113] |
Funding Organization | 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) |
WOS Research Area | Astronomy & Astrophysics |
WOS Subject | Astronomy & Astrophysics |
WOS ID | WOS:000569885200008 |
Publisher | ELSEVIER |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.bao.ac.cn/handle/114a11/81363 |
Collection | 中国科学院国家天文台 |
Corresponding Author | Gou, Li-Jun |
Affiliation | 1.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Datun Rd A20, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China 4.Beijing Normal Univ, Dept Astron, Beijing 100088, Peoples R China 5.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 6.Chinese Acad Sci, Inst High Energy Phys, Comp Div, 19B Yuquan Rd, Beijing 100049, Peoples R China 7.Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Hunan, Peoples R China 8.Jilin Univ, Coll Phys, 2699 Qianjin St, Changchun 130012, Peoples R China 9.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China 10.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China |
Recommended Citation GB/T 7714 | Zhao, Xue-Shan,Dong, Yan-Ting,Gou, Li-Jun,et al. Confirming the spin parameter of the black hole in Cygnus X-1 using the Insight-HXMT[J]. JOURNAL OF HIGH ENERGY ASTROPHYSICS,2020,27:53-63. |
APA | Zhao, Xue-Shan.,Dong, Yan-Ting.,Gou, Li-Jun.,Feng, Ye.,Jia, Nan.,...&Zhuang, Ren-Lin.(2020).Confirming the spin parameter of the black hole in Cygnus X-1 using the Insight-HXMT.JOURNAL OF HIGH ENERGY ASTROPHYSICS,27,53-63. |
MLA | Zhao, Xue-Shan,et al."Confirming the spin parameter of the black hole in Cygnus X-1 using the Insight-HXMT".JOURNAL OF HIGH ENERGY ASTROPHYSICS 27(2020):53-63. |
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