Detection of a Low-frequency Quasi-periodic Oscillation in the Soft State of Cygnus X-1 with Insight-HXMT
文献类型：期刊论文
| 作者 | Yan, Zhen; Rapisarda, Stefano; Yu, Wenfei |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2021 |
| 卷号 | 919页码:46 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac0f7b |
| 英文摘要 | We report the detection of a short-lived narrow quasi-periodic oscillation (QPO) at ~88 mHz in an Insight-HXMT exposure during the soft state of the persistent black hole high-mass X-ray binary Cygnus X-1. This QPO is significantly detected in all three instruments of Insight-HXMT, so in the broad energy range 1-250 keV. The fractional rms of the QPO does not show significant variations above 3 keV (~5%) while it decreases at lower energy (~2%). We show that this QPO is different from the type-A, -B, and -C QPOs usually observed in black hole X-ray binaries. We compare QPOs at similar frequencies that have been previously detected in other persistent high-mass X-ray binaries in the soft state; we speculate that such QPOs might relate to some local inhomogeneity rarely formed in the accretion flow of wind-fed accretion systems. |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/289801]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Yan, Zhen,Rapisarda, Stefano,Yu, Wenfei. Detection of a Low-frequency Quasi-periodic Oscillation in the Soft State of Cygnus X-1 with Insight-HXMT[J]. The Astrophysical Journal,2021,919:46. |
| APA | Yan, Zhen,Rapisarda, Stefano,&Yu, Wenfei.(2021).Detection of a Low-frequency Quasi-periodic Oscillation in the Soft State of Cygnus X-1 with Insight-HXMT.The Astrophysical Journal,919,46. |
| MLA | Yan, Zhen,et al."Detection of a Low-frequency Quasi-periodic Oscillation in the Soft State of Cygnus X-1 with Insight-HXMT".The Astrophysical Journal 919(2021):46. |
入库方式： OAI收割
来源：高能物理研究所
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