Cosmological brightness distribution fits of gamma-ray burst sources

I. Horváth, P. Mészáros, A. Mészáros

Research output: Contribution to journalArticle

31 Citations (Scopus)


We discuss detailed fits of the BATSE and PVO gamma-ray burst peak-flux distributions with Friedmann models taking into account possible density evolution and standard candle or power-law luminosity functions. A χ2 analysis is used to estimate the goodness of the fits, and we derive the significance level of limits on the density evolution and luminosity function parameters. Cosmological models provide a good fit over a range of parameter space that is physically reasonable. Subject headings: cosmology: theory -gamma rays: bursts -methods: statistical

Original languageEnglish
Pages (from-to)56-62
Number of pages7
JournalAstrophysical Journal
Issue number1 PART I
Publication statusPublished - Jan 1 1996

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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