Observations of TeV gamma ray from the galactic plane

被引：0
|
作者：
Xu, CX [1 ]
Zhang, Y [1 ]
He, HL [1 ]
He, HH [1 ]
Chen, YZ [1 ]
Jiang, YL [1 ]
机构：
[1] CAS, Lab Cosm Ray & High Energy Astrophys, Inst High Energy Phys, Beijing 100039, Peoples R China
来源：
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION | 2001年 / 25卷 / 09期
关键词：
TeV gamma rays; galactic plane; hypothesis test;
D O I：
暂无
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present here the result of observation of TeV gamma ray emission from the galactic plane at a galactic longitude of 79. 3866 deg. With Atmospheric Cherenkov Telescopes (ACT2 and ACTS) located at Xinglong station. The data was taken between Oct. 1995 and Nov. 1998 over a total time of 224.4h in the standard ON - OFF mode. Assuming the data obey Gaussian distribution, a formula of the maximum likelihood ratio lambda was derived that gives the probability of significance level directly. Using the formula, we analysed the data and found that there is no evidence for TeV gamma ray emission from the galactic plane within statistic error.
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页码：799 / 806
页数：8
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