A Variable Ionized Disk Wind in the Black Hole Candidate EXO 1846-031
文献类型：期刊论文
| 作者 | Wang, Yanan; Ji, Long; García, Javier A.; Dauser, Thomas; Méndez, Mariano; Mao, Junjie; Tao, L.; Altamirano, Diego; Maggi, Pierre; Zhang, S. N. |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2021 |
| 卷号 | 906页码:11 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abc55e |
| 英文摘要 | After 34 yr, the black hole candidate EXO 1846-031 went into outburst again in 2019. We investigate its spectral properties in the hard intermediate and the soft states with NuSTAR and Insight-HXMT. A reflection component has been detected in the two spectral states but possibly originating from different illumination spectra: in the intermediate state, the illuminating source is attributed to a hard coronal component, which has been commonly observed in other X-ray binaries, whereas in the soft state, the reflection is probably produced by disk self-irradiation. Both cases support EXO 1846-031 as a low-inclination system of $\sim 40^\circ $ . An absorption line is clearly detected at ∼7.2 keV in the hard intermediate state, corresponding to a highly ionized disk wind ( $\mathrm{log}\,\xi 6.1$ ) with a velocity of up to 0.06c. Meanwhile, quasi-simultaneous radio emissions have been detected before and after the X-rays, implying the coexistence of disk winds and jets in this system. If only the high-flux segment of the NuSTAR observation is considered, the observed wind appears to be magnetically driven. The absorption line disappeared in the soft state and a narrow emission line appeared at ∼6.7 keV on top of the reflection component, which may be evidence for disk winds, but data with higher spectral resolution are required to examine this. |
| WOS记录号 | WOS:000603522000001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/289791]  |
| 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 | Wang, Yanan,Ji, Long,García, Javier A.,et al. A Variable Ionized Disk Wind in the Black Hole Candidate EXO 1846-031[J]. The Astrophysical Journal,2021,906:11. |
| APA | Wang, Yanan.,Ji, Long.,García, Javier A..,Dauser, Thomas.,Méndez, Mariano.,...&Zhou, D. K..(2021).A Variable Ionized Disk Wind in the Black Hole Candidate EXO 1846-031.The Astrophysical Journal,906,11. |
| MLA | Wang, Yanan,et al."A Variable Ionized Disk Wind in the Black Hole Candidate EXO 1846-031".The Astrophysical Journal 906(2021):11. |
入库方式： OAI收割
来源：高能物理研究所
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