The gamma-ray background from blazars: A new look

被引：193

作者：

Stecker, FW ^{[1
]}

Salamon, MH ^{[1
]}

机构：

[1] UNIV UTAH,DEPT PHYS,HIGH ENERGY ASTROPHYS INST,SALT LAKE CITY,UT 84112

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 464卷 / 02期

关键词：

galaxies; active; gamma rays; theory; quasars; general;

D O I：

10.1086/177348

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a new model calculation of the gamma-ray background produced by unresolved blazars, using the second EGRET catalog and taking account of flaring. These results are compared to the preliminary gamma-ray background spectrum reported recently by the EGRET team. We find that blazars can account for the entire extragalactic gamma-ray background observed by EGRET. In addition, the EGRET spectrum shows some evidence of a signature for the blazar background, a concavity in the spectrum first pointed out in our earlier paper.

引用

页码：600 / 605

页数：6

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