论文标题
[OIII]测量倾斜的AGN样品的宽带X射线研究
A broadband X-ray study of a sample of AGNs with [OIII] measured inclinations
论文作者
论文摘要
在对活性银河核（AGN）的X射线光谱进行建模时，倾斜角是一个参数，可以在分析AGN的X射线光谱中发挥重要作用，但从未详细研究它。我们提出了13个来源的联合nustar-xmm-newton观测值的宽带X射线光谱分析，并通过Fischer等人确定的[OIII]测量的倾斜。 2013年。通过冷冻[OIII]在建模观测值时测量值的倾斜角度，光谱非常合适，并且AGN遮盖结构的几何特性比在倾斜角度自由易于变化时拟合的倾斜度比拟合的值略微更好地限制。我们还测试是否可以像文献中通常一样冻结其他特定角度的倾斜度，以拟合AGN X射线光谱。我们发现，一个人应始终让倾斜角在建模AGN的X射线光谱时自由变化，同时在[OIII]上固定倾斜角度，并将倾斜角度固定为60 $^\ circ $的倾斜角度在我们的样品中还呈现正确的源源。与覆盖因子的平均柱子之间的分布相关的材料之间的相关量也是如此。晦涩的圆环受爱丁顿比率的调节，这与先前的研究一致。另外，在AGN的狭窄线区域和遮盖的圆环之间没有发现几何相关性，这表明几何形状可能比简单统一模型中假定的几何形状更为复杂。
In modeling the X-ray spectra of active galactic nuclei (AGNs), the inclination angle is a parameter that can play an important role in analyzing the X-ray spectra of AGN, but it has never been studied in detail. We present a broadband X-ray spectral analysis of the joint NuSTAR-XMM-Newton observations of 13 sources with [OIII] measured inclinations determined by Fischer et al. 2013. By freezing the inclination angles at the [OIII] measured values when modeling the observations, the spectra are well fitted and the geometrical properties of the obscuring structure of the AGNs are slightly better constrained than those fitted when the inclination angles are left free to vary. We also test if one could freeze the inclinations at other specific angles in fitting the AGN X-ray spectra as commonly did in the literatures. We find that one should always let the inclination angle free to vary in modeling the X-ray spectra of AGNs, while fixing the inclination angle at [OIII] measured values and fixing the inclination angle at 60$^\circ$ also present correct fits of the sources in our sample.Correlations between the covering factor and the average column density of the obscuring torus with respect to the Eddington ratio are also measured, suggesting that the distribution of the material in the obscuring torus is regulated by the Eddington ratio, which is in agreement with previous studies. In addition, no geometrical correlation is found between the narrow line region of the AGN and the obscuring torus, suggesting that the geometry might be more complex than what is assumed in the simplistic unified model.
