TY - JOUR
T1 - 44 Validated Planets from K2 Campaign 10
AU - Livingston, John H.
AU - Endl, Michael
AU - Dai, Fei
AU - Cochran, William D.
AU - Barragan, Oscar
AU - Gandolfi, Davide
AU - Hirano, Teruyuki
AU - Grziwa, Sascha
AU - Smith, Alexis M.S.
AU - Albrecht, Simon
AU - Cabrera, Juan
AU - Csizmadia, Szilard
AU - De Leon, Jerome P.
AU - Deeg, Hans
AU - Eigmüller, Philipp
AU - Erikson, Anders
AU - Everett, Mark
AU - Fridlund, Malcolm
AU - Fukui, Akihiko
AU - Guenther, Eike W.
AU - Hatzes, Artie P.
AU - Howell, Steve
AU - Korth, Judith
AU - Narita, Norio
AU - Nespral, David
AU - Nowak, Grzegorz
AU - Palle, Enric
AU - Pätzold, Martin
AU - Persson, Carina M.
AU - Prieto-Arranz, Jorge
AU - Rauer, Heike
AU - Tamura, Motohide
AU - Eylen, Vincent Van
AU - Winn, Joshua N.
N1 - Funding Information:
This work was carried out as part of the KESPRINT consortium. The WIYN/NESSI observations were conducted as part of an approved NOAO observing program (PI Livingston, proposal ID 2017A-0377). Data presented herein were obtained at the WIYN Observatory from telescope time allocated to NN-EXPLORE through the scientific partnership of the National Aeronautics and Space Administration, the National Science Foundation, and the National Optical Astronomy Observatory. This work was supported by a NASA WIYN PI Data Award, administered by the NASA Exoplanet Science Institute. NESSI was funded by the NASA Exoplanet Exploration Program and the NASA Ames Research Center. NESSI was built at the Ames Research Center by Steve B Howell, Nic Scott, Elliott P Horch, and Emmett Quigley. The authors are honored to be permitted to conduct observations on Iolkam Du’ag (Kitt Peak), a mountain within the Tohono O’odham Nation with particular significance to the Tohono O’odham people. J.H.L. gratefully acknowledges the support of the Japan Society for the Promotion of Science (JSPS) Research Fellowship for Young Scientists. This work was supported by Japan Society for Promotion of Science (JSPS) KAKENHI Grant Number JP16K17660. M.E. and W.D.C. were supported by NASA grant NNX16AJ11G to The University of Texas. This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission directorate.
Publisher Copyright:
© 2018. The American Astronomical Society. All rights reserved.
PY - 2018/8
Y1 - 2018/8
N2 - We present 44 validated planets from the 10th observing campaign of the NASA K2 mission, as well as high-resolution spectroscopy and speckle imaging follow-up observations. These 44 planets come from an initial set of 72 vetted candidates, which we subjected to a validation process incorporating pixel-level analyses, light curve analyses, observational constraints, and statistical false positive probabilities. Our validated planet sample has median values of = , P orb = days, = K, and J = mag. Of particular interest are four ultra-short period planets ( day), 16 planets smaller than 2 , and two planets with large predicted amplitude atmospheric transmission features orbiting infrared-bright stars. We also present 27 planet candidates, most of which are likely to be real and worthy of further observations. Our validated planet sample includes 24 new discoveries and has enhanced the number of currently known super-Earths ( ≈ 1-2), sub-Neptunes ( ≈ 2-4), and sub-Saturns ( ≈ 4-8) orbiting bright stars (J = 8-10 mag) by ∼4%, ∼17%, and ∼11%, respectively.
AB - We present 44 validated planets from the 10th observing campaign of the NASA K2 mission, as well as high-resolution spectroscopy and speckle imaging follow-up observations. These 44 planets come from an initial set of 72 vetted candidates, which we subjected to a validation process incorporating pixel-level analyses, light curve analyses, observational constraints, and statistical false positive probabilities. Our validated planet sample has median values of = , P orb = days, = K, and J = mag. Of particular interest are four ultra-short period planets ( day), 16 planets smaller than 2 , and two planets with large predicted amplitude atmospheric transmission features orbiting infrared-bright stars. We also present 27 planet candidates, most of which are likely to be real and worthy of further observations. Our validated planet sample includes 24 new discoveries and has enhanced the number of currently known super-Earths ( ≈ 1-2), sub-Neptunes ( ≈ 2-4), and sub-Saturns ( ≈ 4-8) orbiting bright stars (J = 8-10 mag) by ∼4%, ∼17%, and ∼11%, respectively.
KW - planetary systems
KW - planets and satellites: detection
KW - techniques: photometric
KW - techniques: spectroscopic
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U2 - 10.3847/1538-3881/aaccde
DO - 10.3847/1538-3881/aaccde
M3 - Article
AN - SCOPUS:85051518593
SN - 0004-6256
VL - 156
JO - Astronomical Journal
JF - Astronomical Journal
IS - 2
M1 - 78
ER -