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Title:
Distribution of intensities of gamma-ray bursts
Authors:
Paczynski, Bohdan; Long, Kevin
Affiliation:
AA(Princeton University Observatory, NJ), AB(Princeton University Observatory, NJ)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 333, Oct. 15, 1988, p. 694-699. (ApJ Homepage)
Publication Date:
10/1988
Category:
Space Radiation
Origin:
STI
NASA/STI Keywords:
Astronomical Catalogs, Gamma Ray Bursts, Stellar Luminosity, Radial Distribution, Spatial Distribution
DOI:
10.1086/166778
Bibliographic Code:
1988ApJ...333..694P

Abstract

The authors propose that at log N - log nmax relation should be used for studies of the spatial distribution of gamma-ray bursts, where N is the number of bursts which have a maximum photon count rate in excess of nmax. A relation N ≡ nmax-1.5 is expected if the sources are uniformly distributed in infinite, flat space, regardless of the distribution of intrinsic luminosities, spectra, and time profiles. Bursts in the Konus catalog follow a relation N ≡ nmaxa, with the most probable value a = -1.2. However, a = -1.5 is also acceptable. This result and the apparently isotropic distribution of ≡102 bursts over the sky do not allow a purely observational distance estimate for the sources.

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