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Kepler Eclipsing Binary Stars. I. Catalog and Principal Characterization of 1879 Eclipsing Binaries in the First Data Release

Author(s)
Prsa, Andrej; Batalha, Natalie M.; Slawson, Robert W.; Doyle, Laurance R.; Welsh, William F.; Orosz, Jerome A.; Seager, Sara; Rucker, Michael; Mjaseth, Kimberly; Engle, Scott G.; Conroy, Kyle; Jenkins, Jon M.; Caldwell, Douglas A.; Koch, David; Borucki, William J.; ... Show more Show less
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Abstract
The Kepler space mission is devoted to finding Earth-size planets orbiting other stars in their habitable zones. Its large, 105 deg[superscript 2] field of view features over 156,000 stars that are observed continuously to detect and characterize planet transits. Yet, this high-precision instrument holds great promise for other types of objects as well. Here we present a comprehensive catalog of eclipsing binary stars observed by Kepler in the first 44 days of operation, the data being publicly available through MAST as of 2010 June 15. The catalog contains 1879 unique objects. For each object, we provide its Kepler ID (KID), ephemeris (BJD[subscript 0], P [subscript 0]), morphology type, physical parameters (T [subscript eff], log g, E(B – V)), the estimate of third light contamination (crowding), and principal parameters (T [subscript 2]/T [subscript 1], q, fillout factor, and sin i for overcontacts, and T [subscript 2]/T [subscript 1], (R [subscript 1] + R [subscript 2])/a, esin ω, ecos ω, and sin i for detached binaries). We present statistics based on the determined periods and measure the average occurrence rate of eclipsing binaries to be ~1.2% across the Kepler field. We further discuss the distribution of binaries as a function of galactic latitude and thoroughly explain the application of artificial intelligence to obtain principal parameters in a matter of seconds for the whole sample. The catalog was envisioned to serve as a bridge between the now public Kepler data and the scientific community interested in eclipsing binary stars.
Date issued
2011-02
URI
http://hdl.handle.net/1721.1/74152
Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Journal
Astronomical Journal
Publisher
IOP Publishing
Citation
Prsa, Andrej et al. “Kepler Eclipsing Binary Stars. I. Catalog and Principal Characterization of 1879 Eclipsing Binaries in the First Data Release.” The Astronomical Journal 141.3 (2011): 83. © 2011 IOP Publishing
Version: Final published version
ISSN
0004-6256
1538-3881

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