COSMOLOGICAL BRIGHTNESS DISTRIBUTION FITS OF GAMMA-RAY BURST SOURCES

Authors
HORVATH I MESZAROS P MESZAROS A
Citation
I. Horvath et al., COSMOLOGICAL BRIGHTNESS DISTRIBUTION FITS OF GAMMA-RAY BURST SOURCES, The Astrophysical journal, 470(1), 1996, pp. 56-62
Citations number
29
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
470
Issue
1
Year of publication
1996
Part
1
Pages
56 - 62
Database
ISI
SICI code
0004-637X(1996)470:1<56:CBDFOG>2.0.ZU;2-Y
Abstract
We discuss detailed Ms of the BATSE and PYO gamma-ray burst peak-flux distributions with Friedmann models taking into account possible densi ty evolution and standard candle or power-law luminosity functions. A chi(2) analysis is used to estimate the goodness of the fits, and we d erive the significance level of limits on the density evolution and lu minosity function parameters. Cosmological models provide a good st ov er a range of parameter space that is physically reasonable.