False positive probabilties for all Kepler Objects of Interest

Status Report From: e-Print archive
Posted: Wednesday, May 11, 2016

False positive probabilties for all Kepler Objects of Interest: 1284 newly validated planets and 428 likely false positives

Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, Natalie M. Batalha
(Submitted on 10 May 2016)

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% to be astrophysical false positives, and thus may be considered validated planets. 1284 of these have not yet been validated or confirmed by other methods. In addition, we identify 428 KOIs likely to be false positives that 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 able to be easily applied to any transiting exoplanet candidate.

Comments: 20 pages, 8 figures. Published in ApJ. Instructions to reproduce results can be found at this https URL
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:1605.02825 [astro-ph.EP] (or arXiv:1605.02825v1 [astro-ph.EP] for this version)
Submission history
From: Timothy Morton
[v1] Tue, 10 May 2016 02:36:43 GMT (2244kb,D)

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