Rapid ROSAT Observations of small Gamma-Ray Burst Error Boxes

Abstract

I summarize the use of the ROSAT satellite over the last months for the investigation of well localized GRB error boxes. In particular, I report about the attempts for and results of quick follow-up observations (including the GRBs localized with BeppoSAX and RXTE) with ROSAT with its capability to achieve 10 arcsec locations of X-ray afterglow sources.