A search for very high energy gamma rays from active galactic nuclei visible from the southern hemisphere

被引：11
|
作者：
Chadwick, PM [1 ]
Lyons, K [1 ]
McComb, TJL [1 ]
Orford, KJ [1 ]
Osborne, JL [1 ]
Rayner, SM [1 ]
Shaw, SE [1 ]
机构：
[1] Univ Durham, Dept Phys, Sci Labs, Durham DH1 3LE, England
来源：
ASTROPHYSICAL JOURNAL | 1999年 / 521卷 / 02期
关键词：
BL Lacertae objects : general; galaxies : active; gamma rays : observations;
D O I：
10.1086/307597
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Observations have been made, using the University of Durham Mark 6 gamma-ray telescope, of the very high energy gamma-ray emission from a number of active galactic nuclei visible from the Southern Hemisphere. Limits are presented to the very high energy gamma-ray emission from 1ES 0323 + 022, PKS 0829 + 046, 1ES 1101 - 232, Cen A, PKS 1514 - 24, RX J10578 - 275, and 1ES 2316 - 423, both for steady long-term emission and for outbursts of emission on timescales of 1 day.
引用
收藏
页码：547 / 551
页数：5
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