Deep GALEX UV Survey of the Kepler Field I: Point Source Catalog

Abstract

We report observations of a deep near-ultraviolet (NUV) survey of the Kepler field made in 2012 with the Galaxy Evolution Explorer (GALEX) Complete All-Sky UV Survey Extension (CAUSE). The GALEX-CAUSE Kepler survey (GCK) covers 104 square degrees of the Kepler field and reaches limiting magnitude NUV=22.6 at 3σ. Analysis of the GCK survey has yielded a catalog of 669,928 NUV sources, of which 475,164 are cross-matched with stars in the Kepler Input Catalog (KIC). Approximately 327 of 451 confirmed exoplanet host stars and 2614 of 4696 candidate exoplanet host stars identified by Kepler have NUV photometry in the GCK survey. The GCK catalog should enable the identification and characterization of UV-excess stars in the Kepler field (young solar-type and low-mass stars, chromospherically active binaries, white dwarfs, horizontal branch stars, etc.), and elucidation of various astrophysics problems related to the stars and planetary systems in the Kepler field.

arXiv commentAccepted for publication in ApJ. 10 pages, 10 figures

References in corpus (15)

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• White Dwarf based evaluation of the GALEX absolute calibration
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• Long Term Photometric Variability in Kepler Full Frame Images: Magnetic Cycles of Sun-Like Stars
• gPhoton: The GALEX Photon Data Archive
• Evolution of the Exoplanet Size Distribution: Forming Large Super-Earths Over Billions of Years
• The UV Emission of Stars in LAMOST Survey I. Catalogs
• A 9-Hr CV With One Outburst in 4 Years of Kepler Data
• Magnetic activity of red giants: correlation between the amplitude of solar-like oscillations and chromospheric indicators
• The GALEX View of "Boyajian's Star" (KIC 8462852)
• Uncovering the ultimate planet impostor. An eclipsing brown dwarf in a hierarchical triple with two evolved stars
• Kepler data on KIC 7341653, a nearby M dwarf with monster flares and a phase-coherent variability