TL;DR
This study finds statistically significant correlations between nearby stars and gamma-ray burst locations, suggesting stars may be sources of gamma-ray bursts, based on analysis of Swift data and star catalogs.
Contribution
It provides the first statistical evidence linking specific nearby stars to gamma-ray burst sources using coordinate coincidence analysis.
Findings
Four star-GRB coincidences with high angular accuracy
Probability of random coincidence is very low (~2×10^{-4})
Potential fifth coincidence further strengthens the association
Abstract
Our correlation analysis of Swift gamma-ray burst coordinates and nearby star locations (catalog Gliese) reveals 4 coincidences with angular accuracy better than 0.1 degree. The random probability is 2\times 10^{-4}, so evidencing that coincident stars are indeed gamma-ray burst sources. The fifth coincident gamma-burst could be added (angular accuracy 0.14 degree) with random probability for 5 events \sim 10^{-5}.
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Taxonomy
TopicsGamma-ray bursts and supernovae · Statistical and numerical algorithms