Keplereclipsing binary stars – VI. Identification of eclipsing binaries in theK2Campaign 0 data set
Author(s) -
Daryll M. LaCourse,
Kian J. Jek,
Thomas L. Jacobs,
Troy Winarski,
Tabetha S. Boyajian,
S. Rappaport,
Roberto Sanchis-Ojeda,
Kyle E. Conroy,
L. A. Nelson,
Thomas Barclay,
Debra A. Fischer,
Joseph R. Schmitt,
Ji Wang,
Keivan G. Stassun,
Joshua Pepper,
Jeffrey L. Coughlin,
Avi Shporer,
A. Prša
Publication year - 2015
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-8711
pISSN - 0035-8711
DOI - 10.1093/mnras/stv1475
Subject(s) - physics , exoplanet , kepler , ephemeris , light curve , astronomy , astrophysics , binary number , stars , binary star , ecliptic , photometry (optics) , satellite , arithmetic , mathematics , quantum mechanics , magnetic field , solar wind
The original {\it Kepler} mission observed and characterized over 2400 eclipsing binaries in addition to its prolific exoplanet detections. Despite the mechanical malfunction and subsequent non-recovery of two reaction wheels used to stabilize the instrument, the {\it Kepler} satellite continues collecting data in its repurposed {\it K2} mission surveying a series of fields along the ecliptic plane. Here we present an analysis of the first full baseline {\it K2} data release: the Campaign 0 data-set. In the 7761 light curves, we have identified a total of 207 eclipsing binaries. Of these, 97 are new discoveries that were not previously identified. Our pixel-level analysis of these objects has also resulted in identification of several false positives (observed targets contaminated by neighboring eclipsing binaries), as well as the serendipitous discovery of two short period exoplanet candidates. We provide catalog cross-matched source identifications, orbital periods, morphologies and ephemerides for these eclipsing systems. We also describe the incorporation of the K2 sample into the Kepler Eclipsing Binary Catalog\footnote{\url{keplerebs.villanova.edu/k2}}, present spectroscopic follow-up observations for a limited selection of nine systems, and discuss prospects for upcoming {\it K2} campaigns.
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