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44 Validated Planets from K2 Campaign 10

Livingston, John H. ; Endl, Michael ; Dai, Fei ; Cochran, William D. ; Barragan, Oscar ; Gandolfi, Davide ; Hirano, Teruyuki ; Grziwa, Sascha ; Smith, Alexis M.S. and Albrecht, Simon , et al. (2018) In Astronomical Journal 156(2).
Abstract

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... (More)

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.

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publishing date
type
Contribution to journal
publication status
published
keywords
planetary systems, planets and satellites: detection, techniques: photometric, techniques: spectroscopic
in
Astronomical Journal
volume
156
issue
2
article number
78
publisher
IOP Publishing
external identifiers
  • scopus:85051518593
ISSN
0004-6256
DOI
10.3847/1538-3881/aaccde
language
English
LU publication?
no
additional info
Publisher Copyright: © 2018. The American Astronomical Society. All rights reserved.
id
ae7fab32-c5b2-4b6f-a3c9-01adb031a997
date added to LUP
2023-02-02 11:22:58
date last changed
2023-02-20 14:21:21
@article{ae7fab32-c5b2-4b6f-a3c9-01adb031a997,
  abstract     = {{<p>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 <sub>orb</sub> = 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.</p>}},
  author       = {{Livingston, John H. and Endl, Michael and Dai, Fei and Cochran, William D. and Barragan, Oscar and Gandolfi, Davide and Hirano, Teruyuki and Grziwa, Sascha and Smith, Alexis M.S. and Albrecht, Simon and Cabrera, Juan and Csizmadia, Szilard and De Leon, Jerome P. and Deeg, Hans and Eigmüller, Philipp and Erikson, Anders and Everett, Mark and Fridlund, Malcolm and Fukui, Akihiko and Guenther, Eike W. and Hatzes, Artie P. and Howell, Steve and Korth, Judith and Narita, Norio and Nespral, David and Nowak, Grzegorz and Palle, Enric and Pätzold, Martin and Persson, Carina M. and Prieto-Arranz, Jorge and Rauer, Heike and Tamura, Motohide and Eylen, Vincent Van and Winn, Joshua N.}},
  issn         = {{0004-6256}},
  keywords     = {{planetary systems; planets and satellites: detection; techniques: photometric; techniques: spectroscopic}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{IOP Publishing}},
  series       = {{Astronomical Journal}},
  title        = {{44 Validated Planets from K2 Campaign 10}},
  url          = {{http://dx.doi.org/10.3847/1538-3881/aaccde}},
  doi          = {{10.3847/1538-3881/aaccde}},
  volume       = {{156}},
  year         = {{2018}},
}