Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25
Abstract
We present the Kepler Object of Interest (KOI) catalog of transiting exoplanets based on searching four years 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 and include two in multi-planet systems (KOI-82.06 and KOI-2926.05), and ten 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, Twicken et al. 2016). 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 discusses 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
Cite
@article{arxiv.1710.06758,
title = {Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25},
author = {Susan E. Thompson and Jeffrey L. Coughlin and Kelsey Hoffman and Fergal Mullally and Jessie L. Christiansen and Christopher J. Burke and Steve Bryson and Natalie Batalha and Michael R. Haas and Joseph Catanzarite and Jason F. Rowe and Geert Barentsen and Douglas A. Caldwell and Bruce D. Clarke and Jon M. Jenkins and Jie Li and David W. Latham and Jack J. Lissauer and Savita Mathur and Robert L. Morris and Shawn E. Seader and Jeffrey C. Smith and Todd C. Klaus and Joseph D. Twicken and Bill Wohler and Rachel Akeson and David R. Ciardi and William D. Cochran and Thomas Barclay and Jennifer R. Campbell and William J. Chaplin and David Charbonneau and Christopher E. Henze and Steve B. Howell and Daniel Huber and Andrej Prsa and Solange V. Ramirez and Timothy D. Morton and Jorgen Christensen-Dalsgaard and Jessie L. Dotson and Laurance Doyle and Edward W. Dunham and Andrea K. Dupree and Eric B. Ford and John C. Geary and Forrest R. Girouard and Howard Isaacson and Hans Kjeldsen and Jason H. Steffen and Elisa V. Quintana and Darin Ragozzine and Megan Shabram and Avi Shporer and Victor Silva Aguirre and Martin Still and Peter Tenenbaum and William F. Welsh and Angie Wolfgang and Khadeejah A. Zamudio and David G. Koch and William J. Borucki},
journal= {arXiv preprint arXiv:1710.06758},
year = {2018}
}
Comments
61 pages, 23 Figures, 9 Tables, Accepted to The Astrophysical Journal Supplement Series