Abstract
We examine the evidence for repeating of ϒ-ray bursts in light of the BATSE 2B catalog. The temporal coverage of the 2B-1B (non-MAXBC) data set is ≈ 1/3 smaller than that of the 1B catalog. We find evidence that the distributions of the burst statistical positional errors and of the burst fluences also differ. Assuming that the bursts in the 1B catalog form a “fair sample” and taking these observational selection effects into account, we simulate the 2B-1B (less MAXBC) data set. We find that a repeating signal like that seen in the nearest neighbor distribution of the bursts in the 1B catalog would not be detectable in the 2B-1B (non-MAXBC) and 2B (non-MAXBC) data sets, because of the differences in the temporal coverage and in the distribution of positional errors.
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