The Distribution of Cosmological gamma Ray Bursts
Abstract
We compare the burst distribution of the BATSE2B catalog to a cosmological distribution. The observed distribution agrees well with a cosmological one, however, it is insensitive to cosmological parameters such as {OMEGA} and {LAMBDA}. The bursts are not necessarily standard candles, and their luminosity can vary by up to a factor of 10. The maximal redshift, z_max_, of bursts longer than 2 s is 2.1_0.7_^+1^, (assuming no evolution). The present data is insufficient to determine maximal redshift, z_max_, of bursts shorter than 2 s.
 Publication:

The Astrophysical Journal
 Pub Date:
 May 1995
 DOI:
 10.1086/187851
 arXiv:
 arXiv:astroph/9502001
 Bibcode:
 1995ApJ...444L..25C
 Keywords:

 Cosmology;
 Gamma Ray Bursts;
 Luminosity;
 Red Shift;
 Spatial Distribution;
 Data Correlation;
 Gamma Ray Astronomy;
 Likelihood Ratio;
 Spectral Energy Distribution;
 Astrophysics;
 COSMOLOGY: OBSERVATIONS;
 GAMMA RAYS: BURSTS;
 Astrophysics
 EPrint:
 9 pages, uuencoded file, 4 figures included, can also be obtained from ftp://shemesh.fiz.huji.ac.il or at <