Authors

Susan E. Thompson, SETI Institute; NASA Ames Research Center; Space Telescope Science Institute
Jeffrey L. Coughlin, SETI Institute; NASA Ames Research CenterFollow
Kelssey Hoffman, SETI Institute
Fergal Mullally, SETI Institute; NASA Ames Research Center; Orbital Insight
Jessie L. Christiansen, IPAC-NExScI
Christopher J. Burke, SETI Institute; NASA Ames Research Center; MIT Kavli Institute for Astrophysics and Space Research
Steve Bryson, NASA Ames Research Center
Natalie Batalha, NASA Ames Research Center
Michael R. Haas, NASA Ames Research Center; NASA Ames Associate
Joseph Catanzarite, SETI Institute; NASA Ames Research Center
Jason F. Rowe, Bishop's University
Geert Barentsen, Bay Area Environmental Research Institute
Douglas A. Caldwell, SETI Institute; NASA Ames Research Center
Bruce D. Clarke, SETI Institute; NASA Ames Research Center
Jon M. Jenkins, NASA Ames Research Center
Jie Li, SETI Institute
David W. Latham, Harvard-Smithsonian Center for Astrophysics
Jack J. Lissauer, NASA Ames Research Center
Savita Mathur, Space Science Institute
Robert L. Morris, SETI Institute; NASA Ames Research Center
Shawn E. Seader, Rincon Research Corporation
Jeffrey C. Smith, SETI Institute; NASA Ames Research Center
Todd C. Klaus, NASA Ames Research Center
Joseph D. Twicken, SETI Institute; NASA Ames Research Center
Jeffrey E. Van Cleve, SETI Institute
Bill Wohler, SETI Institute; NASA Ames Research Center
Rachel Akeson, IPAC-NExScI
David R. Ciardi, IPAC-NExScI
William D. Cochran, University of Texas at AustinFollow
Christopher E. Henze, NASA Ames Research Center
Steve B. Howell, NASA Ames Research Center

Document Type

Article

Publication Date

4-9-2018

Publication Title

Astrophysical Journal Supplement

Volume

235

Issue

2

First page number:

1

Last page number:

49

Abstract

We present the Kepler Object of Interest (KOI) catalog of transiting exoplanets based on searching 4 yr of Kepler time series photometry (Data Release 25, Q1–Q17). The catalog contains 8054 KOIs, of which 4034 are planet candidates with periods between 0.25 and 632 days. Of these candidates, 219 are new, including two in multiplanet systems (KOI-82.06 and KOI-2926.05) and 10 high-reliability, terrestrial-size, habitable zone candidates. This catalog was created using a tool called the Robovetter, which automatically vets the DR25 threshold crossing events (TCEs). The Robovetter also vetted simulated data sets and measured how well it was able to separate TCEs caused by noise from those caused by low signal-to-noise transits. We discuss the Robovetter and the metrics it uses to sort TCEs. For orbital periods less than 100 days the Robovetter completeness (the fraction of simulated transits that are determined to be planet candidates) across all observed stars is greater than 85%. For the same period range, the catalog reliability (the fraction of candidates that are not due to instrumental or stellar noise) is greater than 98%. However, for low signal-to-noise candidates between 200 and 500 days around FGK-dwarf stars, the Robovetter is 76.7% complete and the catalog is 50.5% reliable. The KOI catalog, the transit fits, and all of the simulated data used to characterize this catalog are available at the NASA Exoplanet Archive.

Keywords

Catalogs; Planetary systems; Stars: General; Surveys

Disciplines

Astrophysics and Astronomy

File Format

pdf

File Size

5.846 Kb

Language

English

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