吸积盘风对AGN X射线谱的影响：第2部分-- XSCORT +流体动力学模拟
The impact of accretion disk winds on the X-ray spectrum of AGN: Part 2 - XSCORT + Hydrodynamic Simulations
摘要：
摘要：利用XSCORT，结合Proga & Kallman（2004）的流体动力学吸积盘风模拟，计算了吸积盘风对太阳质量为1 E8的黑洞活动星系核（AGN）以0.5 L/L_Edd吸积的X射线谱的影响.所得光谱的性质取决于视角，并清楚地反映了原始流体动力学模拟中明显的不同区域。非常赤道的视线（l.o.s）主要是康普顿散射和近中性吸收。极性光致发光导致光谱基本上没有特征。最后，与这些极端之间的过渡区相交的光致发光具有广泛的吸收特征，这些特征印在光谱上。极性区和过渡区L.O.S产生的光谱显示出高度电离、蓝移的Fe吸收特征，这些特征与越来越多的活动星系核的X射线光谱中观察到的特征定性相似。这里提出的光谱清楚地表明，目前的模拟线驱动的活动星系核吸积盘风不能再现光滑的软X射线过剩。此外，他们预测，高吸积率（L/L_Edd）活动星系核很可能受到强烈的影响，在鲜明的对比，通常假设的干净的图片，根据所观察到的分子环面和活动星系核光度之间的关系。
英文摘要：
abridged: We use XSCORT, together with the hydrodynamic accretion disc wind simulation from Proga & Kallman (2004), to calculate the impact that the accretion disk wind has on the X-ray spectrum from a 1E8 solar mass black hole Active Galactic Nuclei (AGN) accreting at 0.5 L/L_Edd. The properties of the resulting spectra depend on viewing angle and clearly reflect the distinct regions apparent in the original hydrodynamic simulation. Very equatorial lines-of-sight (l.o.s) are dominated by Compton scattering and nearly-neutral absorption. Polar l.o.s result in largely featureless spectra. Finally, l.o.s that intersect the transition region between these extremes have a wide range of absorption features imprinted on the spectrum. Both polar and transition region l.o.s produce spectra that show highly-ionized, blue-shifted, Fe absorption features that are qualitatively similar to features observed in the X-ray spectra of a growing number of AGN. The spectra presented here clearly demonstrate that current simulations of line driven AGN accretion disk winds cannot reproduce the smooth soft X-ray excess. Furthermore, they predict that high accretion rate (L/L_Edd) AGN are likely to be strongly affected by obscuration, in sharp contrast to the clean picture that is generally assumed, based on the observed relation between the opening angle of the molecular torus and AGN luminosity.
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