Search For Repeating Classical Bursts With The Interplanetary Network

The comparison of gamma-ray burst observations from Ulysses and from CGRO BATSE has provided several hundred source regions that consist of large-diameter but narrow annuli. Although awkward for use in most applications, the one-dimensional accuracies of these ring segments can be exploited in the search for classical repeaters (as evidenced by the necessary crossing of multiple annuli at the same locations). The catalog of Ulysses-to-BATSE source loci (1) and the BATSE 3B catalog (2) have been used to search for source rings from the interplanetary network that intersect within or close to their own 3B source fields, with calculations done varying the BATSE field size. The regions determined in this manner are consistent with randomicity or can be accounted for as systematic to this technique. Thus, no evidence for the repetition of classical GRBs has been found. Extensions of this work could be possible using event catalogues from other missions, e.g., GGS-Wind, and from the earlier networks.