Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku
Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku
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使用朱雀对银河系黑洞双星 4U 1630-47 进行宽带 X 射线研究
DOI：
10.1002/asna.201612331
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发表时间：
2016
影响因子：
0.9
通讯作者：
S.
中科院分区：
文献类型：
--
作者：
Hori;T.; Ueda;Y.; Done;C.; Shidatsu;M.; Kawamuro;T.; Kubota;A.; Nakahira;S.
我们给出了我们对银河系黑洞双星4U 1630 - 47的朱雀观测结果。4U 1630 - 47在2012年9月至10月的爆发期间被观测到处于甚高态（VHS）。内盘出现稍微截断与以前的高/软状态（HSS）的这个源相比，即使考虑到磁盘和日冕之间的能量耦合。光谱没有显示出表明重子喷流的多普勒频移发射线，这是四天前在XMM-牛顿观测中看到的，尽管源处于类似的状态。没有来自高度电离的铁离子的显著吸收线。我们还在2015年爆发的早期与朱雀和努斯塔同时观察到HSS中的4U 1630 - 47。HSS中的所有Suzaku光谱都显示出可变的铁-钾吸收线特征。我们发现，盘风的电离状态迅速增加时，连续显示出显着的光谱硬化。这种行为与热驱动风的预期一致。（© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA，魏因海姆）
We present the results from our Suzaku observations of the Galactic black hole binary 4U 1630‐47. 4U 1630‐47 was observed in the very high state (VHS) during the 2012 September–October outburst. The inner disk appears slightly truncated by comparison with a previous high/soft state (HSS) of this source, even by taking into account energetic coupling between the disk and corona. The spectra do not show the Doppler‐shifted emission lines indicating baryonic jets that were seen four days previously in an XMM‐Newton observation, despite the source being in a similar state. There are no significant absorption lines from highly ionized iron ions. We also observed 4U 1630‐47 in the HSS simultaneously with Suzaku and NuSTAR in an early epoch of the 2015 outburst. All Suzaku spectra in the HSS show variable iron‐K absorption line features. We find that the ionization state of the disk wind rapidly increased when the continuum showed significant spectral hardening. This behavior is consistent with that expected from a thermally driven wind. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)