Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-06-08
AIP Conf.Proc.1054:101-110,2008
Astronomy and Astrophysics
Astrophysics
10 pages, 7 figures, to appear in `Cool discs, hot flows: The varying faces of accreting compact objects' (AIP Conf. Series)
Scientific paper
10.1063/1.3002491
An overview is given of the properties of the various kinds of quasi-periodic luminosity modulations observed in cataclysmic variables (CVs). The two principal types, known in the CV literature as dwarf nova oscillations and quasi-periodic oscillations, have similarities to the high and low frequency quasi-periodic oscillations in X-Ray binaries. There is a further well observed class known as longer period dwarf nova oscillations. In CVs the observed interrelations between these oscillations suggests a model of magnetically controlled accretion onto a rapidly rotating equatorial belt of accreted gas. Non-radial oscillations of the central white dwarf are observed in some systems.
Warner Brian
Woudt Patrick A.
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