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arXiv · 0910.3218

Data Mining for Dwarf Novae in SDSS, GALEX and Astrometric Catalogues

Patrick Wils·Boris T. Gaensicke·Andrew J. Drake·John Southworth
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Abstract

By cross matching blue objects from SDSS with GALEX and the astrometric catalogues USNO-B1.0, GSC2.3 and CMC14, 64 new dwarf nova candidates with one or more observed outbursts have been identified. 14 of these systems are confirmed as cataclysmic variables through existing and follow-up spectroscopy. A study of the amplitude distribution and an estimate of the outburst frequency of these new dwarf novae and those discovered by the Catalina Real-time Transient Survey (CRTS) indicates that besides systems that are faint because they are farther away, there also exists a population of intrinsically faint dwarf novae with rare outbursts.

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Patrick Wils, Boris T. Gaensicke, Andrew J. Drake, John Southworth. 2009-10-19. Data Mining for Dwarf Novae in SDSS, GALEX and Astrometric Catalogues. https://doi.org/10.1111/j.1365-2966.2009.15894.x

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