A powerful tool for characterizing and classifying gamma-ray bursts
(PHYSorg.com Space & Earth)

A powerful tool for characterizing and classifying gamma-ray bursts (GRBs) to allow their use as tracers of the expansion history of the universe has recently been presented by an international team of researchers. The work, which has been published in the Astrophysical Journal, is a statistical analysis of the properties of the mysterious GRBs, aimed at determining a sub-group of GRBs and investigating the physical origin of these systems.