An eclipse of the X-ray flux from the dwarf nova OY Carinae in quiescence

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.

7 pages, 6 figures, uses psfig.sty and mn.sty, accepted for publication in Monthly Notices of the Royal Astronomical Society

Cited by in corpus (15)

• X-ray Emissions from Accreting White Dwarfs: a Review
• The complete set of ASCA X-ray observations of non-magnetic cataclysmic variables
• The X-ray and extreme-ultraviolet flux evolution of SS Cygni throughout outburst
• Comprehensive simulations of superhumps
• Coronal X-Ray Emission from the Stellar Companions to Transiently Accreting Black Holes
• First XMM-Newton observations of a Cataclysmic Variable I: Timing studies of OY Car
• The minimum period problem in cataclysmic variables
• The X-ray eclipse of OY Car resolved with XMM-Newton: X-ray emission from the polar regions of the white dwarf
• An XMM-Newton observation of the nova-like variable UX UMa: spatially and spectrally resolved two-component X-ray emission
• Chandra Low Energy Transmission Grating Spectrum of SS Cygni in Outburst
• Suzaku Observations of the Dwarf Nova V893 Scorpii: the Discovery of a Partial X-ray Eclipse
• Hot Accretion onto White Dwarfs in Quiescent Dwarf Novae
• Optical and ROSAT X-ray observations of the dwarf nova OY Carinae in superoutburst and quiescence
• Decrease in the orbital period of dwarf nova OY Carinae
• X-Ray Lines from Hot Flows around White Dwarfs. Application to SS Cygni