Deep GALEX UV Survey of the Kepler Field. I. Point Source Catalog
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 a limiting magnitude of 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. 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.
© 2015 American Astronomical Society. Received 2015 May 18; accepted 2015 October 1; published 2015 November 3. The Kepler field observation was funded by Cornell University. M.O. wishes to express his gratitude to the Astronomy Group of the University of Rochester for their hospitality and to CONACyT for the financial support received through the "Beca Mixta" program. M.C., E.B., and M.O. also thank CONACyT for financial support through grants SEP-2009-134985 and SEP-2011-169554. E.E.M. acknowledges support from NSF award AST-1313029. We thank Chase Million for useful discussions. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Études Spatiales of France and the Korean Ministry of Science and Technology.
Submitted - 1510.00748v1.pdf
Published - Olmedo_2015.pdf