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1999MNRAS.309..847P - Mon. Not. R. Astron. Soc., 309, 847-861 (1999/November-2)
Optical and ROSAT X-ray observations of the dwarf nova OY Carinae in superoutburst and quiescence.
PRATT G.W., HASSALL B.J.M., NAYLOR T., WOOD J.H. and PATTERSON J.
Abstract (from CDS):
We include a later (1994 July) ROSAT PSPC observation of OY Car that allows us to put constraints on the quiescent X-ray spectrum. We find that while there is little to choose between OY Car and its fellow high-inclination systems with regard to the temperature of the emitting gas and the emission measure, we have difficulties reconciling the column density found from our X-ray observation with the column found in Hubble Space Telescope UV observations by Horne et al. The obvious option is to invoke time variability.
Abstract Copyright: 1999, Royal Astronomical Society
Journal keyword(s): accretion, accretion discs - binaries: eclipsing - stars: individual: OY Car - novae, cataclysmic variables - X-rays: stars
Simbad objects: 7
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