论文标题
部分可观测时空混沌系统的无模型预测
Dependency of Optical/UV parameters on X-ray spectral index in AGNs
论文作者
论文摘要
活性银河核（AGN）的研究对于理解其各自的核有限活性至关重要，主要是由吸积盘和相关的电晕触发的。这些来源在2-10 keV频段中发出的光谱指数$γ$的硬X射线发射电离附近的物理特征，例如磁盘，BLR，NLR，并提供了辐射构型。但是，基于先前的研究，$γ$在整个红移中存在堕落，其中很少有研究表现出进化的系统趋势，而其他研究则排除了系统的变化。在目前的工作中，我们研究了大型样本的$γ$在红移中的演变，并使用SDSS数据（即使用SDSS数据）对$γ$的变化进行了进一步的研究。 H $_β$ \＆mg II及其亮度。基于分析，我们发现整个红移没有$γ$没有变化，并且与光学参数没有任何相关性。这强烈表明$γ$受软过量和/或反射分量的影响，并且在整个红移中都以相同的强度影响磁盘和BLR区域。
The study of Active Galactic Nuclei (AGNs) is vital in order to understand their respective nuclei bounded activity primarily triggered by the accretion disk and the associated corona. The hard X-ray emission characterised by the spectral index $Γ$ emitted by these sources in 2-10 keV band ionizes the nearby physical features like disk, BLR, NLR and provides a radiative configuration. However, based on previous studies, there is degeneracy in the evolution of $Γ$ across the redshift, wherein few studies display a systematic trend in the evolution and others rule out the systematic variation. In the present work, we study the evolution of $Γ$ across the redshift for a very large sample and perform further studies on the variation of $Γ$ with optical parameters using SDSS data viz. H$_β$ \& Mg II and their luminosities. Based on analysis we find that there is no change in $Γ$ across the redshift and it does not show any correlation with the optical parameters. This strongly suggests that the $Γ$ is influenced by the soft excess and/or reflection component and is affecting the disk and BLR region at the same strength across the redshift.
