The Two-Point Angular Correlation Function and BATSE Sky Exposure

Abstract

The Two-Point Angular Correlation Function is a standard analysis tool used to study angular anisotropies. Since BATSE's sky exposure (the angular sampling of gamma-ray bursts) is anisotropic, the TPACF should at some point identify anisotropies in BATSE burst catalogs due to sky exposure. The effects of BATSE sky exposure are thus explored here for BATSE 3B and 4B catalogs. Sky-exposure effects are found to be small.Comment: 5 pages, 1 postscript figure. To appear in the Fourth Huntsville Gamma-Ray Burst Symposiu