A first look at cataclysmic variable stars from the 2dF QSO survey

Marsh, T. R.; Morales-Rueda, L.; Steeghs, D.; Maxted, P.; Kolb, U. and et, al (2002). A first look at cataclysmic variable stars from the 2dF QSO survey. In: The physics of cataclysmic variables and related objects, 5-10 Aug 2001, Gottingen, Germany.

URL: http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi...


The 2dF QSO survey is a spectroscopic survey of 48 000 point-sources selected by colour with magnitudes in the range 18.35 <~B <~20.95. Amongst QSOs, white dwarfs, narrow-line galaxies and other objects are some cataclysmic variables. This survey should be sensitive to intrinsically faint CVs. In the standard picture of CV evolution, these form the majority of the CV population. We present the spectra of six CVs from this survey. Four have the spectra of dwarf novae and two are magnetic CVs. We present evidence that suggests that the dwarf novae have periods P < 2h and are indeed intrinsically less luminous than average. However, it is not clear yet whether these systems are present in the large numbers predicted.

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