Gamma-ray and X-ray emission from gamma-ray-loud blazars

被引：4
|
作者：
Zhang, X [1 ]
Zhao, G
Xie, GZ
Zheng, GS
Zhang, L
机构：
[1] Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China
[2] Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China
[3] Chinese Acad Sci, Yunnan Observ, Kunming 650091, Peoples R China
[4] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
来源：
CHINESE PHYSICS | 2001年 / 10卷 / 06期
关键词：
BL Lacertae objects; general-gamma-rays; general-X-rays; nonthermal;
D O I：
10.1088/1009-1963/10/6/320
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a strong correlation of the gamma-ray (above 100 MeV) mean spectral indices alpha gamma and X-ray (1keV) mean spectral indices alpha (X) for 34 gamma-ray-loud blazars (16 BL Lac objects and 18 flat spectrum radio quasars). A strong correlation is also found between the gamma-ray flux densities F-gamma and X-ray flux densities F-X in the low state for 47 blazars (17 BL Lac and 30 flat spectrum radio quasars). Possible correlation on the gamma-ray emission mechanism is discussed. We suggest that the main gamma-ray radiation mechanism is probably the synchrotron process. The gamma-ray emission may be somewhat different from that of BL Lac objects and flat spectrum radio quasars.
引用
收藏
页码：568 / 574
页数：7
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