Classification of BeppoSAX's gamma-ray bursts

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The BeppoSAX Catalog has been very recently published. In this paper we analyze-using the Maximum Likelihood (ML) method-the duration distribution of the 1003 GRBs listed in the catalog with duration. The ML method can identify the long and the intermediate duration groups. The short population of the bursts is identified only at a 96% significance level. MC simulation has been also applied and gives a similar significance level; 95%. However, the existence of the short bursts is not a scientific question after the Compton Gamma-Ray Observatory's observation. Our minor result is this well-known fact that in the BeppoSAX data the short bursts are under-represented, mainly caused by the different triggering system. Our major result is the identification of the intermediate group in the BeppoSAX data. Therefore, four different satellites (CGRO, Swift, RHESSI and BeppoSAX) observed the intermediate type Gamma-Ray Burst.

Original languageEnglish
Pages (from-to)83-86
Number of pages4
JournalAstrophysics and Space Science
Volume323
Issue number1
DOIs
Publication statusPublished - Aug 2009

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gamma ray bursts
bursts
catalogs
Gamma Ray Observatory
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simulation
method
distribution

Keywords

  • Gamma rays: bursts
  • Observations
  • Theory

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Classification of BeppoSAX's gamma-ray bursts. / Horváth, I.

In: Astrophysics and Space Science, Vol. 323, No. 1, 08.2009, p. 83-86.

Research output: Contribution to journalArticle

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