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-Cong; Song, L. M.; Ding, G. Q.; Zhang, S. N.; Qu, J. L.; Zhang, S. ; Zhang, L.; Bu, Q. C.; Huang, Y.; Ma, X.
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2022 |
| 卷号 | 22期号:11页码:115002 |
| 关键词 | accretion accretion disks stars: black holes X-rays: binaries |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ac8d80 |
| 文献子类 | Article |
| 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. |
| 电子版国际标准刊号 | 2397-6209 |
| 语种 | 英语 |
| WOS记录号 | WOS:000870855200001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/300303]  |
| 专题 | 高能物理研究所_粒子天体物理中心 硬X射线调制望远镜卫星 |
| 作者单位 | 中国科学院高能物理研究所 |
| 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):115002. |
| 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),115002. |
| 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):115002. |
入库方式： OAI收割
来源：高能物理研究所
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