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False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives

Morton, Timothy D. and Bryson, Stephen T. and Coughlin, Jeffrey L. and Rowe, Jason F. and Ravichandran, Ganesh and Petigura, Erik A. and Haas, Michael R. and Batalha, Natalie M. (2016) False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives. Astrophysical Journal, 822 (2). Art. No. 86. ISSN 0004-637X. doi:10.3847/0004-637X/822/2/86.

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We present astrophysical false positive probability calculations for every Kepler Object of Interest (KOI)—the first large-scale demonstration of a fully automated transiting planet validation procedure. Out of 7056 KOIs, we determine that 1935 have probabilities <1% of being astrophysical false positives, and thus may be considered validated planets. Of these, 1284 have not yet been validated or confirmed by other methods. In addition, we identify 428 KOIs that are likely to be false positives, but have not yet been identified as such, though some of these may be a result of unidentified transit timing variations. A side product of these calculations is full stellar property posterior samplings for every host star, modeled as single, binary, and triple systems. These calculations use vespa, a publicly available Python package that is able to be easily applied to any transiting exoplanet candidate.

Item Type:Article
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URLURL TypeDescription
Morton, Timothy D.0000-0002-8537-5711
Coughlin, Jeffrey L.0000-0003-1634-9672
Rowe, Jason F.0000-0002-5904-1865
Petigura, Erik A.0000-0003-0967-2893
Additional Information:© 2016. The American Astronomical Society. Received 2016 January 5; accepted 2016 March 29; published 2016 May 10. T.D.M. acknowledges support from the Kepler Participating Scientist Program (NNX14AE11G). We thank the anonymous referee, Daniel Huber, Jack Lissauer, Juna Kollmeier, and David Hogg for providing helpful suggestions that improved both the analysis and the presentation herein. This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission directorate. The authors acknowledge the efforts of the Kepler Mission team for obtaining the light curve products used in this publication, which were generated by the Kepler Mission science pipeline through the efforts of the Kepler Science Operations Center and Science Office. The Kepler Mission is led by the project office at NASA Ames Research Center. Ball Aerospace built the Kepler photometer and spacecraft, which is operated by the mission operations center at LASP. These data products are archived at the NASA Exoplanet Science Institute, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This research has made use of NASA's Astrophysics Data System.
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Issue or Number:2
Record Number:CaltechAUTHORS:20160510-144126948
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66946
Deposited By: Joy Painter
Deposited On:11 May 2016 00:14
Last Modified:11 Nov 2021 00:24

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