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arXiv 0907.3850astro-ph.HE
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AGN样品中铁发射线的相对论展宽

Relativistic Broadening of Iron Emission Lines in a Sample of AGN

Laura W. Brenneman, Christopher S. Reynolds

摘要:

我们提出了一个统一的X射线光谱分析的8个1型活动星系核(AGN),以前已经观察到相对论增宽铁发射线。利用XMM-牛顿欧洲光子成像相机(EPIC-pn)的数据,我们仔细模拟光谱连续,考虑复杂的固有吸收和发射。然后,我们着手模拟两个不同的吸积盘发射线代码,以及一个自洽的,电离的吸积盘光谱卷积从内盘的相对论涂抹在每个源的广泛的Fe K功能。比较结果,我们表明,相对论模糊的磁盘发射需要解释在大多数来源的光谱,即使当一个模型的光电离磁盘的全反射光谱。

英文摘要:

We present a uniform X-ray spectral analysis of eight type-1 active galactic nuclei (AGN) that have been previously observed with relativistically broadened iron emission lines. Utilizing data from the XMM-Newton European Photon Imaging Camera (EPIC-pn) we carefully model the spectral continuum, taking complex intrinsic absorption and emission into account. We then proceed to model the broad Fe K feature in each source with two different accretion disk emission line codes, as well as a self-consistent, ionized accretion disk spectrum convolved with relativistic smearing from the inner disk. Comparing the results, we show that relativistic blurring of the disk emission is required to explain the spectrum in most sources, even when one models the full reflection spectrum from the photoionized disk.

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