SIMBAD references

1997A&A...327..602V - Astronomy and Astrophysics, volume 327, 602-613 (1997/11-2)

Cataclysmic variables in the ROSAT PSPC All Sky Survey.

VERBUNT F., BUNK W.H., RITTER H. and PFEFFERMANN E.

Abstract (from CDS):

91 cataclysmic variables from a sample of 162 systems with known or suspected binary periods were detected during the ROSAT XRT-PSPC All Sky Survey. Among the non-magnetic systems, the X-ray to optical/ultraviolet flux ratio decreases along the sequence SU UMa type - U Gem type - Z Cam type - UX UMa type, due mainly to variations in the optical/ultraviolet flux. 8 of the 10 brightest systems in terms of total PSPC countrate are magnetic systems. The 0.5-2.5keV X-ray luminosities range up to ∼1032erg/s, the highest luminosities being those of four faraway DQ Her type systems. The other types of cataclysmic variables all have similar 0.5-2.5keV luminosity distributions. In an Appendix we compare the X-ray properties of cataclysmic variables with those of the dim X-ray sources in globular clusters.

Abstract Copyright:

Journal keyword(s): cataclysmic variables - globular clusters - X-rays: stars

Simbad objects: 163

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