PLANETARY CANDIDATES FROM THE FIRST YEAR OF THE K2 MISSION

By Andrew Vanderburg, D. Latham, Lars A. Buchhave, A. Bieryla, P. Berlind, M. Calkins, G. Esquerdo, S. Welsh, J. Johnson. 2015

182 citations recorded by the source corpus.

The Kepler Space Telescope is currently searching for planets transiting stars along the ecliptic plane as part of its extended K2 mission. We processed the publicly released data from the first year of K2 observations (Campaigns 0, 1, 2, and 3) and searched for periodic eclipse signals consistent with planetary transits. Out of the 59,174 targets that we searched, we detect 234 planetary candidates around 208 stars. These candidates range in size from gas giants to smaller than the Earth, and range in orbital periods from hours to over a month. We conducted initial reconnaissance spectroscopy of 68 of the brighter candidate host stars, and present high-resolution optical spectra for these stars. We make all of our data products, including light curves, spectra, and vetting diagnostics available to users online.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/50aea6658e57edc909a8027e4e18e21ace1e010f

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Citations in the corpus

• Identifying Exoplanets with Deep Learning: A Five-planet Resonant Chain around Kepler-80 and an Eighth Planet around Kepler-90 (2017, methodology): “This S/NBLS threshold is considerably more liberal than both thresholds typically used for transit searches in data from the K2 mission (which we normally set at S/NBLS = 9, Vanderburg et al. 2016), and the threshold13 used by the Kepler pipeline of MES = 7.1 (Jenkins et al. 2002).”
• ZODIACAL EXOPLANETS IN TIME (ZEIT). III. A SHORT-PERIOD PLANET ORBITING A PRE-MAIN-SEQUENCE STAR IN THE UPPER SCORPIUS OB ASSOCIATION (2016, methodology): “K2-33b was previously identified as a planet candidate by Vanderburg et al. (2016), but assigned inaccurate stellar and planetary parameters owing to the assumption of a main sequence age and an unreddened spectral energy distribution for the host star.”
• 197 CANDIDATES AND 104 VALIDATED PLANETS IN K2's FIRST FIVE FIELDS (2016, background): “…al. 2016; David et al. 2016a), supernovae (Zenteno et al. 2015), large numbers of planet candidates (Foreman-Mackey et al. 2015; Adams et al. 2016; Vanderburg et al. 2016), and a growing sample of validated and/or confirmed planets (e.g., Vanderburg & Johnson 2014; Crossfield et al. 2015; Huang…”
• Optimized transit detection algorithm to search for periodic transits of small planets (2019, result): “Our measurements are in agreement with “one minute run time [for BLS] per processor core per K2 campaign star” (Vanderburg et al. 2016).”
• THE K2 ECLIPTIC PLANE INPUT CATALOG (EPIC) AND STELLAR CLASSIFICATIONS OF 138,600 TARGETS IN CAMPAIGNS 1–8 (2015, methodology): “Finally, we compared Teff and log g values for 36 planet-candidate hosts with the catalog by Vanderburg et al. (2016), who presented high-resolution spectra analyzed using SPC (Buchhave et al. 2012, 2014).”