A Variable Ionized Disk Wind in the Black Hole Candidate EXO 1846–031

Yanan Wang, Long Ji, Javier A. García, Thomas Dauser, Mariano Méndez, Junjie Mao, Lian Tao, D. Altamirano, P. Maggi, Shuang‐Nan Zhang, M. Y. Ge, Liang Zhang, Jin‐Lu Qu, S. Zhang, Xiaoning Ma, F. J. Lu, Ti-Pei Li, Y. Huang, S. J. Zheng, Zhi Chang, Yali Tuo, L. M. Song, Y. P. Xu, Yong Chen, C. Z. Liu, Qingcui Bu, Ce Cai, Xuejun Cao, L. Chen, Tianxiang Chen, Y. P. Chen, Wei-Hua Cui, Yuanyuan Du, G. H. Gao, Y. D. Gu, Ju Guan, Chengcheng Guo, Danxiang Han, J. Huo, S. M. Jia, W. C. Jiang, J. Jin, Ling-Da Kong, Bing Li, Cheng-Kui Li, Gang Li, Wenxiong Li, X Li, X. B. Li, Xufang Li, Z. W. Li, X. H. Liang, J. Y. Liao, Haibo Liu, X. J. Liu, X. F. Lu, Q. Luo, T. Luo, Bin Meng, Y. Nang, J. Y. Nie, G. Ou, Na Sai, R. C. Shang, X. Y. Song, Liang Sun, Y. H. Tan, W. S. Wang, Yue Wang, Yonghong Wang, Xing Wen, B. B. Wu, Bai-Yang Wu, Mengyuan Wu, G. Xiao, S. Xiao, S. L. Xiong, Shengqi Yang, Yi-Jung Yang, Qingqing Yi, Qian-Qing Yin, Y. You, Fenghe Zhang, H. M. Zhang, Jie Zhang, Wanchang Zhang, W. Zhang, Y. F. Zhang, Haisheng Zhao, Xiao-Yun Zhao, D. K. Zhou

The Astrophysical Journal · 2020

Read source ↗ All evidence

Summary

Abstract 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 . An absorption line is clearly detected at ∼7.2 keV in the hard intermediate state, corresponding to a highly ionized disk wind ( ) with a velocity of up to

Source type: Peer-reviewed study
DOI: 10.3847/1538-4357/abc55e
Catalogue ID: SNmoic24m5-tdw2h2

Pulse AI · ask about this record

Dig deeper with Pulse AI.

Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.

How does this finding apply in a UK context?→What are the most cited records on this topic?→