The implications of the Compton (GRO) observations for cosmological gamma-ray bursts

Details The implications of the Compton (GRO) observations for cosmological gamma-ray bursts The implications of the Compton (GRO) observations for cosmological gamma-ray bursts

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389l..45p&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 389, April 20, 1992, p. L45-L48.

Mathematics

Logic

169

Binary Stars, Gamma Ray Bursts, Neutron Stars, Angular Distribution, Halos, Milky Way Galaxy

Scientific paper

The BATSE observations (Fishman et al.; Meegan et al.) show that the angular distribution of gamma-ray sources in the sky is isotropic. These observations are shown to be consistent with a cosmological distribution of sources. In fact, the observed distribution of V/Vmax values is the one toward which a cosmological distribution converges. If there is even a weak cosmological time dependence of the event rate, then the bursts originate at modest z values. For flat cosmological models, this requires 10 exp 50 ergs or less. The energy and the observed event rate are in full agreement with the binary neutron star merger model.

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