Fermi Blazar天体同步辐射区域的能谱演化研究  

The Spectral Energy Evolution Study of the Synchrotron Emission Area for Fermi Blazar

作　　者：毕雄伟[1] 李伟[1] 葛树萍[1] 张黎黎[1] 

机构地区：[1]红河学院物理系,云南蒙自661199

出　　处：《云南师范大学学报（自然科学版）》2016年第6期1-7,共7页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：云南省教育厅科研基金资助项目(2014Y463)

摘　　要：收集了180个Fermi Blazar天体的射电波段、红外波段、光学波段、紫外波段和X射线波段的准同时性多波段观测数据,用二次函数拟合了同步辐射区域的能谱,根据能谱拟合得到的参数值,获得了同步辐射区域的峰值频率和多波段能谱指数.通过研究多波段谱指数与同步峰值频率的相关性,探讨了不同能谱类型的Blazar天体之间的演化规律.We have collected the quasi-simultaneous multi-band observation data of radio,infrared,optics,ultraviolet and X-ray wavelengths of the 180 Fermi Blazars,which including 50 flat spectrum radio quasars（FSRQs）,61 low synchronous peak（LSP）,57 intermediate synchrotron Peaked（ISP）,and 62 high synchronous peak（HSP）BL Lacs.Using aparabolic function to fitting the energy spectrum of the synchrotron radiation area,we have obtained the synchrotron peak frequency and the multi-band spectral index according to the spectral fitting parameters.We have studied the relationship between the synchrotron peak frequency and multi-band spectral index,and the spectral and spectral for FSRQ,LSP,ISP,HSP BL Lacs.

关 键 词：FERMI BLAZAR天体 谱指数 同步辐射峰值频率 能谱演化 

分 类 号：P14[天文地球—天体物理]