用RHESSI和BATSE测量伽马射线暴亚群的比较
A Comparison of Gamma-ray Burst Subgroups Measured by RHESSI and BATSE
摘要:
对RHESSI卫星探测到的近400个伽马射线暴(GRB)样本进行了统计研究。我们重点研究了伽玛暴的持续时间和硬度比,并使用统计卡方检验和F检验对RHESSI数据库和BATSE数据库中伽玛暴亚组的数量进行了比较。虽然以前的一些文章基于BATSE目录声称存在一个中间GRB亚组,除了长和短,我们还没有发现一个统计上显着的中间亚组的RHESSI数据。
英文摘要:
A sample of almost 400 Gamma-ray bursts (GRBs) detected by the RHESSI satellite is studied statistically. We focus on GRB duration and hardness ratio and use the statistical chi^2 test and the F-test to compare the number of GRB subgroups in the RHESSI database with that of the BATSE database. Although some previous articles based on the BATSE catalog claim the existence of an intermediate GRB subgroup, besides long and short, we have not found a statistically significant intermediate subgroup in the RHESSI data.
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