An unidentified variable gamma-ray source near the galactic plane detected by COMPTEL

被引：8
作者：
Zhang, S
Collmar, W
Schönfelder, V
机构：
[1] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany
[2] Inst High Energy Phys, High Energy Astrophys Lab, Beijing 100039, Peoples R China
来源：
ASTRONOMY & ASTROPHYSICS | 2002年 / 396卷 / 03期
关键词：
gamma rays : observations;
D O I：
10.1051/0004-6361:20021434
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the detection of an unidentified gamma-ray source near the Galactic plane by the COMPTEL experiment aboard the Compton Gamma-Ray Observatory. The source is detected at a significance level of similar to7.2sigma in the energy range 1-3 MeV and at similar to4.6sigma in the lower 0.75-1 MeV band in the time period March to July 1995. At energies above 3 MeV are only marginal hints or upper limits obtained. The MeV spectrum has a soft shape. Strong flux variability is found within one year at energies below 3 MeV. Possible counterparts of galactic and extragalactic nature are discussed.
引用
收藏
页码：923 / 928
页数：6
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