Statistical analysis of gamma-ray bursts based on beaming model.

Details Statistical analysis of gamma-ray bursts based on beaming model. Statistical analysis of gamma-ray bursts based on beaming model.

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996acaps..16..307c&link_type=abstract

Acta Astrophys. Sin., Vol. 16, No. 3, p. 307 - 313

Statistics

Gamma-Ray Bursts: Statistics, Gamma-Ray Bursts: Relativistic Beaming, Gamma-Ray Bursts: Cosmology

Scientific paper

Statistical properties of gamma-ray bursts are analyzed assuming that the bursts with non-thermal, rapidly varying spectra are from relativistic beaming if the bursts are cosmological. The model assumes that all of the bursts are standard candles with identical power-law spectra in their initial systems and the directions of beaming are random in the comoving system and the burst rate is assumed to be constant per unit comoving volume per unit comoving cosmological time in a Friedmann universe with Ω = 1 and Λ = 0. The calculated distribution of burst intensities is consistent with that found by the BATSE experiment for the weak events and by PVO for the strong events when the Lorentz factor of beaming is lower than 10 and the exponent of power-law is less than 1.

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