黑洞候选体 EXO 1846-031 中的可变电离盘风
高能天体物理现象
2021-01-06 v2
摘要
时隔 34 年后，黑洞候选体 EXO 1846-031 于 2019 年再次爆发。我们利用 NuSTAR 和 Insight-HXMT 研究了其在硬中间态和软态下的光谱性质。在这两种光谱态中均探测到反射成分，但可能源于不同的照射谱：在中间态，照射源归因于硬日冕成分，这在其他 X 射线双星中普遍观测到；而在软态，反射可能由盘自照射产生。这两种情况均支持 EXO 1846-031 是一个倾角约为 40 度的低倾角系统。在硬中间态，于 ~7.2 keV 处清晰探测到一条吸收线，对应于速度高达 0.06c 的高电离盘风（log {\xi} > 6.1）。同时，在 X 射线前后探测到了准同时的射电辐射，暗示该系统中盘风与喷流共存。此外，在该源中观测到的风可能由磁力驱动。在软态下吸收线消失，并在反射成分之上 ~6.7 keV 处出现一条窄发射线，这可能是盘风的证据，但需要更高光谱分辨率的数据来检验这一点。
引用
@article{arxiv.2010.14662,
title = {A variable ionized disk wind in the black-hole candidate EXO 1846-031},
author = {Yanan Wang and Long Ji and Javier A. Garcia and Thomas Dauser and Mariano Mendez and Junjie Mao and L. Tao and Diego Altamirano and Pierre Maggi and S. N. Zhang and M. Y. Ge and L. Zhang and J. L. Qu and S. Zhang and X. Ma and F. J. Lu and T. P. Li and Y. Huang and S. J. Zheng and Z. Chang and Y. L. Tuo and L. M. Song and Y. P. Xu and Y. Chen and C. Z. Liu and Q. C. Bu and C. Cai and X. L. Cao and L. Chen and T. X. Chen and Y. P. Chen and W. W. Cui and Y. Y. Du and G. H. Gao and Y. D. Gu and J. Guan and C. C. Guo and D. W. Han and J. Huo and S. M. Jia and W. C. Jiang and J. Jin and L. D. Kong and B. Li and C. K. Li and G. Li and W. Li and X. Li and X. B. Li and X. F. Li and Z. W. Li and X. H. Liang and J. Y. Liao and H. W. Liu and X. J. Liu and X. F. Lu and Q. Luo and T. Luo and B. Meng and Y. Nang and J. Y. Nie and G. Ou and N. Sai and R. C. Shang and X. Y. Song and L. Sun and Y. Tan and W. S. Wang and Y. D. Wang and Y. S. Wang and X. Y. Wen and B. B. Wu and B. Y. Wu and M. Wu and G. C. Xiao and S. Xiao and S. L. Xiong and S. Yang and Y. J. Yang and Q. B. Yi and Q. Q. Yin and Y. You and F. Zhang and H. M. Zhang and J. Zhang and W. C. Zhang and W. Zhang and Y. F. Zhang and H. S. Zhao and X. F. Zhao and D. K. Zhou},
journal= {arXiv preprint arXiv:2010.14662},
year = {2021}
}
备注
Accepted for publication in ApJ