An Insight-HXMT View of the mHz Quasi-regular Modulation Phenomenon in the Black Hole X-Ray Binary 4U 1630–47
文献类型：期刊论文
| 作者 | Yang,Zi-xu11,12; Zhang,Liang11; Huang,Yue11; Bu,Qingcui13; Zhang,Zhen11 ; Liu,He-Xin11,12; Yu,Wei11,12; Wang,Peng-Ju11,12; Zhao,Q. C.11,12; Tao,L.11
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| 刊名 | The Astrophysical Journal
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| 出版日期 | 2022-09-01 |
| 卷号 | 937期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac84d6 |
| 通讯作者 | Yang,Zi-xu() |
| 英文摘要 | Abstract Here we report the spectral-timing results of the black hole X-ray binary 4U 1630–47 during its 2021 outburst using observations from the Hard X-ray Modulation Telescope (Insight-HXMT). Type C quasi-periodic oscillations (QPOs) in ～1.6–4.2 Hz and quasi-regular modulation (QRM) near 60 mHz are detected during the outburst. The mHz QRM has a fractional rms of ～10%–16% in the 8–35 keV energy band with a Q factor (frequency/width) of ～2–4. Benefiting from the broad energy band of Insight-HXMT, we study the energy dependence of the ～60 mHz QRM in 1–100 keV for the first time. We find that the fractional rms of the mHz QRM increases with photon energy, while the time lags of the mHz QRM are soft and decrease with photon energy. Fast recurrence of the mHz QRM, in a timescale of less than 1 hr, has been observed during the outburst. During this period, the corresponding energy spectra moderately change when the source transitions from the QRM state to the non-QRM state. The QRM phenomenon also shows a dependence with the accretion rate. We suggest that the QRM could be caused by an unknown accretion instability aroused from the corona. |
| 语种 | 英语 |
| WOS记录号 | IOP:APJ_937_1_33 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6175]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Yang,Zi-xu |
| 作者单位 | 1.Department of Astronomy, Beijing Normal University, Beijing 100088, People’s Republic of China 2.Department of Physics, Tsinghua University, Beijing 100084, People’s Republic of China 3.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150, Science 1- Street, Urumqi, Xinjiang 830011, People’s Republic of China 4.Department of Astronomy, Tsinghua University, Beijing 100084, People’s Republic of China 5.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People’s Republic of China 6.Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154, USA 7.School of Physics and Optoelectronics, Xiangtan University, Yuhu District, Xiangtan, Hunan, 411105, People’s Republic of China 8.Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany 9.Computing Division, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People’s Republic of China 10.Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Yang,Zi-xu,Zhang,Liang,Huang,Yue,et al. An Insight-HXMT View of the mHz Quasi-regular Modulation Phenomenon in the Black Hole X-Ray Binary 4U 1630–47[J]. The Astrophysical Journal,2022,937(1). |
| APA | Yang,Zi-xu.,Zhang,Liang.,Huang,Yue.,Bu,Qingcui.,Zhang,Zhen.,...&Zhou,Dengke.(2022).An Insight-HXMT View of the mHz Quasi-regular Modulation Phenomenon in the Black Hole X-Ray Binary 4U 1630–47.The Astrophysical Journal,937(1). |
| MLA | Yang,Zi-xu,et al."An Insight-HXMT View of the mHz Quasi-regular Modulation Phenomenon in the Black Hole X-Ray Binary 4U 1630–47".The Astrophysical Journal 937.1(2022). |
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