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Spectral and Timing Analysis of the Black Hole Transient MAXI J1631-479 During its 2019 Outburst Observed with Insight-HXMT

文献类型：期刊论文

作者Fu, Yu-Cong2,3,4; Song, L. M.2; Ding, G. Q.4; Zhang, S. N.2; Qu, J. L.2; Zhang, S.2; Zhang, L.2; Bu, Q. C.1; Huang, Y.2; Ma, X.2
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2022-11-01
卷号22期号:11页码:15
ISSN号1674-4527
关键词accretion accretion disks stars: black holes X-rays: binaries
DOI10.1088/1674-4527/ac8d80
通讯作者Fu, Yu-Cong(fuyucong@xao.ac.cn) ; Song, L. M.(songlm@ihep.ac.cn) ; Ding, G. Q.(dinggq@xao.ac.cn)
英文摘要We report spectral and timing analysis of the black hole transient MAXI J1631-479 during the hard intermediate state of its 2019 outburst from the Insight-Hard X-ray Modulation Telescope (Insight-HXMT) observations. We find that the energy dependence of the type-C quasi-periodic oscillation (QPO) frequency evolves with time: during the initial rise of a small flare (similar to MJD 58526.0-58527.1), the QPO frequency increases with increasing energy from similar to 1 to similar to 100 keV, and then the frequency remains constant after MJD 58527.1. We discover a possible new phenomenon of Fe line's QPO frequency jump that has never been observed for other black hole transients: during the small flare, the QPO frequency around the Fe line energy is higher than any other energy band, with the frequency difference Delta f = 0.25 +/- 0.08 Hz between 5.5-7.5 keV and other energy bands. The spectral analysis shows that the evolution of QPOs is related to the equivalent width of the narrow Fe line, and its equivalent width increases during this small flare. We propose that the QPO frequency difference results from the differential precession of a vertically extended jet, and the higher QPO frequency of Fe line could be caused by the layered jet when the jet scale increases. At the same time, the evolution of QPOs is related to the accretion rate, while the energy dependence of QPOs supports the existence of deceleration in the vertically distributed jet.
WOS关键词QUASI-PERIODIC OSCILLATIONS ; X-RAY BINARIES ; INTERMEDIATE STATE ; BACKGROUND MODEL ; IRON LINE ; ACCRETION ; CORONA ; VARIABILITY ; DISK ; CANDIDATES
资助项目China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China[2021YFA0718500] ; National Natural Science Foundation of China (NSFC)[U1838201] ; National Natural Science Foundation of China (NSFC)[U1838202] ; National Natural Science Foundation of China (NSFC)[11733009] ; National Natural Science Foundation of China (NSFC)[11673023] ; National Natural Science Foundation of China (NSFC)[U1838111] ; National Natural Science Foundation of China (NSFC)[U1838108] ; National Natural Science Foundation of China (NSFC)[U1838105] ; National Natural Science Foundation of China (NSFC)[U1938102] ; National Natural Science Foundation of China (NSFC)[U2038104] ; National Natural Science Foundation of China (NSFC)[U1838110] ; National Natural Science Foundation of China (NSFC)[U1838113] ; National Natural Science Foundation of China (NSFC)[U1838115] ; National Natural Science Foundation of China (NSFC)[U2031205]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号WOS:000870855200001
资助机构China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC)
源URL[http://ir.xao.ac.cn/handle/45760611-7/4918]  
专题脉冲星研究团组
通讯作者Fu, Yu-Cong; Song, L. M.; Ding, G. Q.
作者单位1.Eberhard Karls Univ Tubingen, Kepler Ctr Astro & Particle Phys, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714		 Fu, Yu-Cong,Song, L. M.,Ding, G. Q.,et al. Spectral and Timing Analysis of the Black Hole Transient MAXI J1631-479 During its 2019 Outburst Observed with Insight-HXMT[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2022,22(11):15.
APA Fu, Yu-Cong.,Song, L. M..,Ding, G. Q..,Zhang, S. N..,Qu, J. L..,...&Xu, Y. C..(2022).Spectral and Timing Analysis of the Black Hole Transient MAXI J1631-479 During its 2019 Outburst Observed with Insight-HXMT.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,22(11),15.
MLA Fu, Yu-Cong,et al."Spectral and Timing Analysis of the Black Hole Transient MAXI J1631-479 During its 2019 Outburst Observed with Insight-HXMT".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 22.11(2022):15.

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