Volume 365, Number 1, January 2001
First Results from XMM-Newton
|Page(s)||L294 - L297|
|Published online||15 January 2001|
First XMM-Newton observations of a Cataclysmic Variable II: The X-ray spectrum of OY Car*
Mullard Space Science Lab., University College London, Holmbury St. Mary, Dorking, Surrey, RH5 6NT, UK
2 Department of Physics, University of California, Santa Barbara, CA 93106, USA
3 Columbia Astrophysics Laboratory, Columbia University, 538 West 120th Street, New York, NY 10027, USA
4 Astrophysics Division, ESTEC, 2200, AG Noordwijk, The Netherlands
5 Department of Physics & Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
Corresponding author: G. Ramsay, firstname.lastname@example.org
Accepted: 20 October 2000
We present XMM-Newton X-ray spectra of the disc accreting cataclysmic variable OY Car, which were obtained during the performance verification phase of the mission. These data were taken 4 days after a short outburst. In the EPIC spectra we find strong iron Kα emission with weaker iron Kβ emission together with silicon and sulphur lines. The spectra are best fitted with a three temperature plasma model with a partial covering absorber. Multiple temperature emission is confirmed by the emission lines seen in the RGS spectrum and the H/He like intensity ratio for iron and sulphur which imply temperatures of ~7 keV and ~3 keV respectively.
Key words: accretion, accretion discs / binaries: eclipsing / stars: individual: OY Car / novae, cataclysmic variables / X-rays: stars
© ESO, 2001
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