Burst statistics in HETE-2 catalogue.

The full catalogue of gamma-ray bursts detected by the HETE-2 spacecraft experiment is almost complete. It contains a unique set of more than 250 events. About one third of them has a coverage of prompt emission down to 2 keV (thanks to wide-field X-ray detectors), providing an unprecedented insight into the classes of X-ray rich bursts and X-ray flashes. Also the coverage of the optical afterglow of these bursts (detected in 28 cases) seems to be richer than in the case of Swift GRBs, probably because, with less frequent burst localization, follow-up observations were more available. We present statistical properties of the sample, with some emphasis on the analysis of the prompt emission in multiple spectral bands. [ABSTRACT FROM AUTHOR]