4 papers · 1 filter
The isolated neutron star candidate RBS1223 (1RXS J130848.6+212708)
A. D. Schwope, G. Hasinger, R. Schwarz +2
In the ROSAT Bright Survey (RBS) we have almost completely optically identified the brightest ~2000 high-galactic latitude sources from the ROSAT All-Sky Survey Bright Source Catal…
Tomography of Polars
Axel D. Schwope, Robert Schwarz, Andreas Staude +3
We are reviewing the power of Doppler tomography for detailed investigations of polars (magnetic cataclysmic binaries without accretion disk). Using high-resolution spectroscopy in…
Filling up the period gap: RX J0803.4-4748, a new 137 minute polar
Robert Schwarz, Jochen Greiner
We report the discovery of a new AM Herculis system as the counterpart of the bright and very soft X-ray source RX J0803.4-4748 found serendipitously in a ROSAT PSPC pointing. Opti…
RX J1016.9-4103: A new soft X-ray polar in the period gap
Jochen Greiner, Robert Schwarz
We have discovered a new AM Her system as the optical counterpart of the ROSAT All-Sky-Survey source RX J1016.9-4103 (= 1RXS J101659.4-410332). The X-ray spectrum is very soft and…