A Catalog of 15,000 White Dwarfs Detected in the GALEX Survey

Details A Catalog of 15,000 White Dwarfs Detected in the GALEX Survey A Catalog of 15,000 White Dwarfs Detected in the GALEX Survey

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21921101l&link_type=abstract

American Astronomical Society, AAS Meeting #219, #211.01

Astronomy and Astrophysics

Astronomy

Scientific paper

I present a catalog of about 15,000 white dwarfs identified in the GR6 data release of the Galaxy Evolution Explorer (GALEX) source catalog. White dwarfs were searched in GALEX by identifying counterparts of the UV-bright sources in the SUPERBLINK all-sky proper motion catalog, which records stars with proper motions larger than 40 mas/yr to a limiting magnitude R=19. GALEX sources with confirmed, large proper motions were identified as white dwarfs based on their location in a UV-to-optical reduced proper motion diagram. We show this diagram to be significantly more efficient in identifying white dwarfs than pure optical, or optical-to-infrared reduced proper motion diagrams. The bulk of the white dwarfs identified in this program are estimated to be within 200 parsecs of the Sun, and have kinematics consistent with the Galactic thin and thick disk.

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