Z Cam in outburst during the ROSAT All-Sky Survey.
Abstract
The authors present the first X-ray observations of the dwarf nova Z Cam taken during outburst. ROSAT survey observations show that Z Cam conforms to the pattern of X-ray behaviour seen in other dwarf novae, i.e. the quiescent hard X-ray emission is suppressed during outburst and replaced by extreme ultraviolet emission which declines more rapidly than the optical flux. The timing of the hard X-ray suppression is measured with precision for the first time in any system.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- November 1996
- DOI:
- 10.1093/mnras/283.1.101
- Bibcode:
- 1996MNRAS.283..101W
- Keywords:
-
- Dwarf Novae: Outbursts;
- Dwarf Novae: X-Ray Light Curves;
- Dwarf Novae: Radiation Mechanisms;
- Dwarf Novae: Light Curves;
- Dwarf Novae: Extreme UV;
- accretion;
- accretion discs -- binaries: close -- stars: individual: Z Camelopardalis -- novae;
- cataclysmic variables -- white dwarfs -- X-rays: stars