Statistics of cosmological gamma-ray bursts

Details Statistics of cosmological gamma-ray bursts Statistics of cosmological gamma-ray bursts

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvl..68.1799d&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 68, March 23, 1992, p. 1799-1802.

Astronomy and Astrophysics

Astronomy

82

Cosmology, Gamma Ray Bursts, Statistical Distributions, Black Holes (Astronomy), Gamma Ray Observatory, Neutron Stars

Scientific paper

A phenomenological model of gamma-ray burst spectra is used to calculate the statistics of gamma-ray bursts originating at cosmological distances. A model of bursters with no source evolution in a q0 = 1/2 Friedmann cosmology is in accord with recent observations of the differential V/Vmax distribution. The data are best fit with an average peak-burst luminosity of (4 +/- 2) x 10 exp 51 ergs/s and a present-day source emissivity of 940 +/- 440 bursts/(10 exp 10 yr) cu Mpc. A spectral test of the cosmological hypothesis is proposed.

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