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arXiv 1003.3417astro-ph.HE
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爆发黑洞H1743-322的朱雀观测

Suzaku Observations of the Black Hole H1743-322 in Outburst

J. L. Blum, J. M. Miller, E. Cackett, K. Yamaoka, H. Takahashi, J. Raymond, C. S. Reynolds, A. C. Fabian

摘要:

我们观察了银河系黑洞候选者H1743-322与朱雀约32千秒,而源是在低/硬状态在其2008年爆发。我们收集和分析的数据与HXD/PIN,HXD/GSO和XIS相机跨越能量范围从0.7-200 keV。拟合的光谱与简单的模型未能检测到窄的Fe XXV和Fe XXVI的吸收线,与90%的置信上限分别为3.5 eV和2.5 eV的等效宽度。这些限制是相称的那些在非常高的状态,但远低于在高/软状态检测到的线的等效宽度,这表明盘风是部分依赖于状态。我们讨论了这些结果的背景下,在H1743-322和连接到风和吸积系统的电离铁吸收线的检测。此外,我们报告可能检测磁盘反射功能,包括铁K发射线。

英文摘要:

We observed the Galactic black hole candidate H1743-322 with Suzaku for approximately 32 ksec, while the source was in a low/hard state during its 2008 outburst. We collected and analyzed the data with the HXD/PIN, HXD/GSO and XIS cameras spanning the energy range from 0.7-200 keV. Fits to the spectra with simple models fail to detect narrow Fe XXV and Fe XXVI absorption lines, with 90% confidence upper limits of 3.5 eV and 2.5 eV on the equivalent width, respectively. These limits are commensurate with those in the very high state, but are well below the equivalent widths of lines detected in the high/soft state, suggesting that disk winds are partially state-dependent. We discuss these results in the context of previous detections of ionized Fe absorption lines in H1743-322 and connections to winds and jets in accreting systems. Additionally, we report the possible detection of disk reflection features, including an Fe K emission line.

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