On the Galactic disk and halo models of gamma-ray bursts

Details On the Galactic disk and halo models of gamma-ray bursts On the Galactic disk and halo models of gamma-ray bursts

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389l..13m&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 389, April 10, 1992, p. L13-L16.

Mathematics

Logic

54

Gamma Ray Bursts, Halos, Milky Way Galaxy, Statistical Distributions, Astronomical Models, Galactic Nuclei

Scientific paper

Statistical properties of the distribution of gamma-ray bursts are calculated for a large range of different luminosity functions assumed for the sources. Surprisingly, the observable parameters are almost the same as in the 'standard-candle' scenario. In particular, no way is found to reconcile the observed distribution of gamma-ray bursts with any Galactic disk model. A Galactic halo distribution must have a core radius greater than 18 kpc to have no measurable dipole anisotropy. A cosmological distribution of the bursters is a more reasonable alternative.

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