EUVE Observations of the Magnetic Cataclysmic Variable QQ Vulpeculae
Abstract
We present simultaneous X-ray (λpeak~44 Å) and EUV (λpeak=89 Å) light curves for the magnetic cataclysmic variable QQ Vulpeculae, obtained with the EUVE satellite. We find that the unique shape of the X-ray light curve is different from previously obtained X-ray light curves of QQ Vul and provides evidence for two-pole accretion. Detailed examination of the photometric data indicates that QQ Vul undergoes a stellar eclipse of the X-ray-emitting region, indicative of a high binary inclination. We discuss possible implications for the nature of this system given the observed shape of its EUV and X-ray light curves.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- March 2000
- DOI:
- 10.1086/316536
- arXiv:
- arXiv:astro-ph/9911529
- Bibcode:
- 2000PASP..112..343B
- Keywords:
-
- STARS: NOVAE;
- CATACLYSMIC VARIABLES;
- STARS: INDIVIDUAL (QQ VULPECULAE);
- ULTRAVIOLET EMISSION;
- X-RAYS;
- Astrophysics
- E-Print:
- 12 pages including 4 figures, accepted to PASP