Probing the Small-Scale Angular Distribution of Gamma-Ray Bursts with Combined BATSE/Ulysses 4B Locations
Abstract
We investigate the angular distribution of gamma-ray bursts using the largest catalog of well-localized events that is currently available---combined BATSE/Ulysses burst locations. We present the preliminary spatial analysis of 415 BATSE/Ulysses bursts included in the BATSE 4B catalog. We find that the locations are consistent with large- and small-scale isotropy, with no significant clustering or repetition. We also search for cross-correlation between the BATSE/Ulysses bursts and known extragalactic objects---such as Abell galaxy clusters, radio-quiet QSO, AGN and supernovae---and place limits on the fraction of bursts that could originate from these objects.
Keywords
Cite
@article{arxiv.astro-ph/9810040,
title = {Probing the Small-Scale Angular Distribution of Gamma-Ray Bursts with Combined BATSE/Ulysses 4B Locations},
author = {R. M. Kippen and K. Hurley and G. N. Pendleton},
journal= {arXiv preprint arXiv:astro-ph/9810040},
year = {2007}
}
Comments
LaTeX, 4 pages, 2 figures, Submitted to Proc. of the 3rd INTEGRAL Workshop: The Extreme Universe; Taormina, Italy, Sep. 1998