Correlation between the gamma-ray and the near-infrared emissions from gamma-ray-loud blazars in the lowstate

被引：7
|
作者：
Zhang, X [1 ]
Cheng, KS
Zhao, G
Hu, SM
机构：
[1] Yunnan Normal Univ, Dept Phys, Kunming, Peoples R China
[2] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[3] Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2003年 / 286卷 / 3-4期
关键词：
general-quasars; general; -; gamma-rays; infared; observations;
D O I：
10.1023/A:1026331018507
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have studied the correlations between the near-IR and the gamma-ray bands using 29 observed gamma-ray-loud blazars (16 BL Lac objects and 13 flat-spectrum radio quasars (FSRQs)) with near-IR and gamma-ray spectral indices and fluxes. The results show that there are very strong correlations between near-IR mean spectral index alpha(IR) and gamma-ray mean spectral index alpha(gamma) and between near-IR and gamma-ray fluxes. Which means that gamma-ray radiation from the blazars should be mainly produced by the synchrotron self-Compton process. In addition, the gamma-ray emission of BL Lac objects may be somewhat different from flat-spectrum radio quasars.
引用
收藏
页码：323 / 331
页数：9
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