摘要
利用羊八井一期阵列从1990年6月到1993年10月的数据，采用等天顶角方法估计背景，寻找包括蟹状星云在内的58个超新星遗迹和包括Mrk421和Mrk501在内的25个活动星系核的10TeVγ射线稳定直流超出．利用李-马的方法，计算了这些候选源直流超出的显著性，没有出现统计上有显著意义的直流超出．采用Kolmogorov－Smirnov检验法，对这些候选源的数据样本偏离标准正态分布的程度进行了检验，没有发现显著偏离标准正态分布．最后，给出了它们的流强上限．
A search for 10Tev γ- ray continuous emission from 58 Supernova Remnants which include Crab Nebula and 25 Active Galactic Nuclei which include Mrk421 and Mrk501 with the data of Tibet I air shower array from 1990 June to 1993 October is executed by the method of equi-zenith angle to estimate the bacdground events. The significance of DC excess is calculated according to the Li and Ma prescription. No significant DC excess is observed from these candidates. The integral distribution of significances is checked by the Kolmogorov-Smirnov test which examines the divergence from a standard normal distribution. No significant deviation is found. Flux upper limit is obtained for each source at 95% C.L.
出处
《高能物理与核物理》
CSCD
北大核心
1999年第1期22-24,共3页
High Energy Physics and Nuclear Physics
基金
中国科学院资助
国家科委资助
国家自然科学基金
关键词
广延大气簇射
Γ射线
超新星遗迹
活动星系核
extensive air shower, γ-ray sources, supernova remnant, active galactic nuclei
