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An eclipse of the X-ray flux from the dwarf nova OY Carinae in quiescence |
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| Authors: | Gabriel W Pratt B J M Hassall T Naylor Janet H Wood |
| Institution: | Centre for Astrophysics, University of Central Lancashire, Preston PR1 2HE; Department of Physics, Keele University, Keele ST5 5BG |
| Abstract: | We present a phase-resolved ROSAT HRI X-ray light curve of the dwarf nova OY Car in quiescence. The X-ray flux is eclipsed at the same time as the optical eclipse of the primary, and the region of X-ray emission is comparable in size to the white dwarf. We use subsequent optical observations to update the orbital ephemeris of the system. |
| Keywords: | accretion accretion discs binaries: eclipsing stars: individual: OY Car novae cataclysmic variables X-rays: stars |