A third class of gamma-ray bursts?

Research output: Contribution to journalArticle

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Abstract

Two classes of gamma-ray bursts have been identified so far, characterized by T90 durations shorter and longer than approximately 2 s. We show here that the BATSE 3B data allow a good fit with three Gaussian distributions in log T90. The χ2 statistic indicates a 40% probability for two-Gaussian fits, whereas the three-Gaussian fit probability is 98%. Using another statistical method, it is argued that the probability that the third class is a random fluctuation is less than 0.02%.

Original languageEnglish
Pages (from-to)757-759
Number of pages3
JournalAstrophysical Journal
Volume508
Issue number2 PART II
DOIs
Publication statusPublished - 1998

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gamma ray bursts
normal density functions
statistics

Keywords

  • Gamma rays: bursts
  • Methods: statistical

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Space and Planetary Science

Cite this

A third class of gamma-ray bursts? / Horváth, I.

In: Astrophysical Journal, Vol. 508, No. 2 PART II, 1998, p. 757-759.

Research output: Contribution to journalArticle

Horváth, I. / A third class of gamma-ray bursts?. In: Astrophysical Journal. 1998 ; Vol. 508, No. 2 PART II. pp. 757-759.
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