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

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 spectroscop...

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Veröffentlicht in:	arXiv.org 2009-10
Hauptverfasser:	Wils, Patrick, Gaensicke, Boris T, Drake, Andrew J, Southworth, John
Format:	Artikel
Sprache:	eng
Schlagworte:	Cataclysmic variables Data mining Dwarf novae Novae Outbursts Physics - Solar and Stellar Astrophysics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	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.
ISSN:	2331-8422
DOI:	10.48550/arxiv.0910.3218