A further study of the BATSE gamma-ray burst duration distribution

被引：118

作者：

Horváth, I ^{[1
]}

机构：

[1] Bolyai Mil Univ, Dept Phys, H-1456 Budapest, Hungary

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 392卷 / 03期

关键词：

gamma rays : bursts; theory; observations; methods : data analysis; observational; statistical;

D O I：

10.1051/0004-6361:20020808

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two classes of gamma-ray bursts have been identified so far, characterized by durations shorter and longer than about 2 s. In 1998 two independent papers indicated the existence of the third class of the bursts with duration between approximately 2 and 10 s. In this paper, using the full BATSE Catalog, the maximum likelihood estimation is presented, which gives a 0.5% probability for having only two subclasses. A Monte-Carlo simulation also confirms this probability.

引用

页码：791 / 793

页数：3

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