HBL天体中X射线和γ射线辐射研究

摘要

We study the correlation coefficient between X-ray and γ-ray radiation of BL Lac object Mrk 421 using power-law function F γ-ray∝ F c/sX-ray to describe the relationship between them.Our results show that:(1)the radiation mechanism of X-rays and gamma rays can be explained by synchrotron self-Compton(SSC) model for HBL objects.In the word,X-rays are derived from synchrotron radiation,but the inverse Compton scattering originate from the interaction between the soft photons from the synchrotron radiation and the high energetic electrons,and the gamma rays are produced from the process.(2)the energy band of the X ray maybe affect the size of the index c/s.%利用幂律函数关系Fγ-rayY∝ Fc/sX-ray研究了HBL天体Mrk421的X射线和γ射线辐射流量间的相关系数.研究结果表明:(1)对HBL天体而言,X射线和γ射线的辐射机制可以用均匀自康普顿(SSC)模型来解释,即X射线源于同步辐射,同步辐射过程中产生的软光子和高能电子之间发生逆康普顿散射,产生了γ射线;(2)X射线能段范围会影响到幂律关系式中指数c/s的大小.