The Correlation between Gamma-ray and Radio Emissions in γ-ray Loud Blazars

作     者：Jiang-HeYang Jun-HuiFan 

作者机构：DepartmentofPhysicsandElectronicsScienceHunanUniversityofArtsandScienceChangde415000／／CenterforAstrophysicsGuangzhouUniversityGuangzhou510405 CenterforAstrophysicsGuangzhouUniversityGuangzhou510405／／NationalAstronomicalObservatoriesChineseAcademyofSciencesBeijing100012／／PhysicsInstituteHunanNormalUniversityChangsha410081 

出 版 物：《Chinese Journal of Astronomy and Astrophysics》 (中国天文和天体物理学报（英文版）)

年 卷 期：2005年第5卷第3期

页      面：229-237页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

基　　金：Supported by the National Natural Science Foundation of China 

主　　题：Galaxies: active   BL Lacertae objects  quasars 

摘      要：We collect 119 γ-ray-loud blazars (97 flat spectrum radio quasars (FSRQs) and 22 BL Lacertae objects (BL Lacs)), and investigate possible correlations between their γ-ray emission (maximum, minimum and average values) at 1 GeV and the radio emission at 8.4 GHz. Our main results are as follows. For the lower state γ-ray data, there is no correlation between the γ-ray and radio flux density; For the high state γ-ray data, there are good correlations for the whole 119 blazars and 97 FSRQs, and a weak correlation for the 22 BL Lac objects; For the average γ-ray data, there are good correlations. According to our analysis, we propose that the γ-rays are associated with the radio emission from the jet, and that the γ-ray emission is likely from the SSC process in this case.