Previous abstract Next abstract
A ROSAT image of x-rays from a gamma-ray burst (GRB) could provide a breakthrough in our understanding of the burst phenomenon. With the ROSAT High Resolution Imager (HRI) instrument at the focus, the burst could be positioned to few arcsec accuracy. This would be a significantly better position than now available for any burst and is small enough for deep searches for quiescent counterparts. With the PSPC instrument at the focus, the burst could be positioned to ~1/2 arcmin accuracy, which would also allow counterpart searches. Additionally the PSPC would provide excellent soft x-ray spectroscopy. Both instruments would give the burst light-curve in the x-ray range. We have examined the ROSAT archival data at times when a GRB was detected by the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory and ROSAT was pointing near the BATSE burst position. Searches for both simultaneous transient images and burst afterglow have been carried out. Results of these and other ROSAT GRB studies will be presented.
Monday program listing