Identification of New Eruptive Cataclysmic Variables toward the Galactic Bulge and Magellanic Clouds Using the OGLE-II Database

Details Identification of New Eruptive Cataclysmic Variables toward the Galactic Bulge and Magellanic Clouds Using the OGLE-II Database Identification of New Eruptive Cataclysmic Variables toward the Galactic Bulge and Magellanic Clouds Using the OGLE-II Database

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasp..115..193c&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 115, Issue 804, pp. 193-211.

Astronomy and Astrophysics

Astronomy

11

Stars: Novae, Cataclysmic Variables

Scientific paper

We have performed a search in the OGLE-II light-curve database in order to find new cataclysmic variables. The objects were selected from Magellanic Clouds and Galactic bulge variables, using photometric amplitude as the primary criterion. Nova or dwarf nova-type eruptions were recognized in many candidates, yielding a total of 33 new dwarf novae and two new classical novae identifications. All selected target positions were cross-correlated against X-ray survey databases in a search for possible point-source identifications. The main light-curve characteristics of each cataclysmic variable identified are described; when possible, a classification in a subtype was assigned to the system. We also find possible candidates to symbiotics, R Coronae Borealis, and RV Tauri. The detected dwarf novae in the direction of the bulge are likely members of the Galactic disk. Using our sample, one may derive an upper limit for the dwarf nova spatial density of 5×10-7 pc-3.

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