Kepler eclipsing binary stars VI. Identification of eclipsing binaries in the K2 campaign 0 data set

The original Kepler mission observed and characterized over 2400 eclipsing binaries (EBs) 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 Kepler satellite continues collectin...

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Journal Title: Monthly Notices of the Royal Astronomical Society Vol. 452; no. 4; pp. 3561 - 3592
Authors: J. Wang, A. Prša, A. Shporer, D. M. LaCourse, K. J. Jek, T. L. Jacobs, T. Winarski, T. S. Boyajian, S. A. Rappaport, R. Sanchis-Ojeda, K. E. Conroy, L. Nelson, T. Barclay, D. A. Fischer, J. R. Schmitt, K. G. Stassun, J. Pepper, J. L. Coughlin
Format: Article
Language: English
Published: 2015
Subjects:
Summary: The original Kepler mission observed and characterized over 2400 eclipsing binaries (EBs) 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 Kepler satellite continues collecting data in its repurposed K2 mission surveying a series of fields along the ecliptic plane. Here, we present an analysis of the first full baseline K2 data release: the Campaign 0 data set. In the 7761 light curves we have identified a total of 207 EBs. 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 neighbouring EBs), as well as the serendipitous discovery of two short-period exoplanet candidates. We provide catalogue 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,§ present spectroscopic follow-up observations for a limited selection of nine systems and discuss prospects for upcoming K2 campaigns.
ISSN: 0035-8711
DOI: 10.1093/mnras/stv1475