The gamma-ray burst variability-peak luminosity correlation: New results

C. Guidorzi, F. Frontera, E. Montanari, F. Rossi, L. Amati, A. Gomboc, K. Hurley, C. G. Mundell

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38 Citations (SciVal)


We report test results of the correlation between the time variability and the peak luminosity of gamma-ray bursts (GRBs), using a larger sample (32) of GRBs with known redshift than that available to Reichart et al., and using as a variability measure that introduced by these authors. The results are puzzling. Assuming an isotropic-equivalent peak luminosity, as had Reichart et al., a correlation is still found, but it is less relevant and inconsistent with a power law as previously reported. Assuming as the peak luminosity that corrected for GRB beaming for a subset of 16 GRBs with known beaming angle, the correlation becomes slightly less significant.

Original languageEnglish
Pages (from-to)315-325
Number of pages11
JournalMonthly Notices of the Royal Astronomical Society
Issue number1
Publication statusPublished - 11 Oct 2005


  • Gamma-rays: bursts
  • Methods: data analysis

ASJC Scopus subject areas

  • Space and Planetary Science


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