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astro-ph1999
RX J0537.7-7034: The shortest-period supersoft X-ray source
J. Greiner, M. Orio, R. Schwarz
We present new photometric and spectroscopic observations of the transient supersoft X-ray source RX J0537.7-7034 and find a periodicity of approximately 3.5 hrs. This establishes…
astro-ph1999
Search for GRB X-ray afterglows in the ROSAT all-sky survey
J. Greiner, D. H. Hartmann, W. Voges +3
We describe a search for X-ray afterglows from gamma-ray bursts using the ROSAT all-sky survey (RASS) data. If the emission in the soft X-ray band is significantly less beamed than…
astro-ph1999
Zeeman lines and a single cyclotron line in the low-accretion rate polar 1RXS J012851.9-233931 (RBS0206)
A. D. Schwope, R. Schwarz, J. Greiner
We present a low-resolution discovery spectrum and CCD-photometry of the bright X-ray source 1RXS J012851.9-233931 found in the ROSAT All-Sky Survey. These first observations sugge…