XBLs和RBLs间的光度与宽波段谱指数的相关性分析

The Correlation Between Broad-band Spectral Index and Luminosity for XBLs and RBLs

对Fossati等人的研究中所给出的Blazar样本分别计算从射电到X射线波段的光度、宽波段光谱指数. 在此基础上研究了XBLs和RBLs间的光度与宽波段谱指数的相关性质. 结果表明:XBLs和RBLs之间存在着较强的相关性质,XBLs和RBLs位于不同的区域,可以通过0.75rxa=较好的区分开来,这意味着它们之间的能谱分布形状是有差异的因而有助于我们了解的其内部辐射机制,最后对结果进行讨论.

Using the sample of XBLs and RBLs presented by Fossati et al.(1998), we calculated the broad-band spectral index and luminosity from radio to X-ray of each source respectively. We also made a statistical analysis between broad-band spectral index and luminosity for XBLs and RBLs. The main results are as follows: XBLs and RBLs can be separated by the value 0.75rxa=. There are very strong correlations between broad-band spectral index and luminosity between XBLs and RBLs. It is helpful for us to understand the radiation mechanism for these different kinds of blazars.