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Identifying False Alarms in the Kepler Planet Candidate Catalog

Mullally, F. and Coughlin, Jeffery L. and Thompson, Susan E. and Christiansen, Jessie and Burke, Christopher and Clarke, Bruce D. and Haas, Michael R. (2016) Identifying False Alarms in the Kepler Planet Candidate Catalog. Publications of the Astronomical Society of the Pacific, 128 (965). Art. No. 074502. ISSN 0004-6280. doi:10.1088/1538-3873/128/965/074502.

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We present a new automated method to identify instrumental features masquerading as small, long-period planets in the Kepler planet candidate catalog. These systematics, mistakenly identified as planet transits, can have a strong impact on occurrence rate calculations because they cluster in a region of parameter space where Kepler's sensitivity to planets is poor. We compare individual transit-like events to a variety of models of real transits and systematic events and use a Bayesian information criterion to evaluate the likelihood that each event is real. We describe our technique and test its performance on simulated data. Results from this technique are incorporated in the Kepler Q1–Q17 DR24 planet candidate catalog of Coughlin et al.

Item Type:Article
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URLURL TypeDescription Paper
Coughlin, Jeffery L.0000-0003-1634-9672
Thompson, Susan E.0000-0001-7106-4683
Christiansen, Jessie0000-0002-8035-4778
Additional Information:© 2016 The Astronomical Society of the Pacific. Received 2015 October 21. Accepted 2016 February 9. Published 2016 June 13. Funding for this Discovery mission is provided by NASA’s Science Mission Directorate. All of the data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NNX13AC07G and by other grants and contracts. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Facilities: Kepler.
Funding AgencyGrant Number
Subject Keywords:methods: data analysis – planets and satellites: detection – binaries: eclipsing
Issue or Number:965
Record Number:CaltechAUTHORS:20161206-110932442
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Official Citation:F. Mullally et al 2016 PASP 128 074502
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72595
Deposited By: Ruth Sustaita
Deposited On:06 Dec 2016 19:37
Last Modified:11 Nov 2021 05:03

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