Statistical studies of gamma-ray bursts.

Details Statistical studies of gamma-ray bursts. Statistical studies of gamma-ray bursts.

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ijrsp..28..247s&link_type=abstract

Indian J. Radio Space Phys., Vol. 28, No. 6, p. 247 - 252

Statistics

Gamma-Ray Bursts: Statistics

Scientific paper

The classical gamma-ray bursts (GRB) from the BATSE 3B catalog are analyzed on the basis of their time duration, fluence, spectral and shape parameters. Correlations between these parameters are derived and an attempt is made to describe the GRB population with a single variable, based on these correlations. A bimodal distribution of these events is seen with one generic group exhibiting shorter time duration and harder spectra compared to the other more populated sample. There is an indication of anisotropy in a sub-class belonging to the first group of events. Marginal evidence for repeating events in this sub-class is seen with two sets of gamma-ray bursts displaying quite similar properties.

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