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Title:
Cosmological Brightness Distribution FITS of Gamma-Ray Burst Sources
Authors:
Horvath, I.; Meszaros, P.; Meszaros, A.
Publication:
Astrophysical Journal v.470, p.56 (ApJ Homepage)
Publication Date:
10/1996
Origin:
APJ; NED
Astronomy Keywords:
COSMOLOGY: THEORY, GAMMA RAYS: BURSTS, METHODS: STATISTICAL
DOI:
10.1086/177849
Bibliographic Code:
1996ApJ...470...56H

Abstract

We discuss detailed fits of the BATSE and PVO gamma-ray burst peak- flux distributions with Friedmann models taking into account possible density evolution and standard candle or power-law luminosity functions. A chi^2^ analysis is used to estimate the goodness of the fits, and we derive the significance level of limits on the density evolution and luminosity function parameters. Cosmological models provide a good fit over a range of parameter space that is physically reasonable.

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