γ噪Blazar天体的γ射线和射电8.4GHz辐射关系研究  

The Correlation Between γ-ray and Radio at 8.4 GHz Emissions for γ-ray Loud Blazers

作　　者：杨江河[1] 

机构地区：[1]湖南文理学院物理与电子科学系,湖南常德415000

出　　处：《湖南师范大学自然科学学报》2006年第1期34-36,共3页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金资助项目(10403001);湖南省教育厅科研资助项目(05C724)

摘　　要：收集了96个Blazar类星体,其中平谱射电源(FSRQs)75个,BL Lac天体21个,研究了射电8.4 GHz辐射与1 GeV处γ射线辐射之间的关系,导出了光子流量密度与以Jy为单位流量的转换关系.研究结果表明:γ射线辐射与射电8.4GHz辐射只有在低态时没有相关,但在高态和平均态时都存在较强的相关性;γ射线的辐射机制主要是同步自康普顿散射,射电辐射(特别是在高频段)与γ射线辐射有密切的联系.96 γ-ray-loud blazers including 75 FSRQs and 21 BL Lac are collected. The possible correlations between the γ-ray emission at 1 GeV and the radio emission at 8.4 GHz is investigated. Main results as follows： for minimum γ-ray data, there is no correlations between the γ-ray and radio flux density, for the maximum and average data, there were good correlations between the γ-ray and radio emissions. So, the γ-ray emission is the SSC process, the radio emission, especially in the high frequence, is important to the γ-ray emission.

关 键 词：BLAZAR 活动星系核 Γ射线 射电辐射 

分 类 号：P157.7[天文地球—天文学]