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K2-31B, a grazing transiting hot jupiter on a 1.26-day orbit around a bright G7V star

Grziwa, Sascha ; Gandolfi, Davide ; Csizmadia, Szilard ; Fridlund, Malcolm ; Parviainen, Hannu ; Deeg, Hans J. ; Cabrera, Juan ; Djupvik, Amanda A. ; Albrecht, Simon and Palle, Enric B. , et al. (2016) In Astronomical Journal 152(5).
Abstract

We report the discovery of K2-31b, the first confirmed transiting hot Jupiter detected by the K2 space mission. We combined K2 photometry with FastCam lucky imaging and FIES and HARPS high-resolution spectroscopy to confirm the planetary nature of the transiting object and derived the system parameters. K2-31b is a 1.8-Jupiter-mass planet on 1.26-day orbit around a G7 V star (M∗ = 0.91 M⊙, R∗ = 0.78 R⊙). The planetary radius is poorly constrained (0.7<Rp<1.4 RJup), owing to the grazing transit and the low sampling rate of the K2 photometry.16

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publishing date
type
Contribution to journal
publication status
published
keywords
planets and satellites: detection, planets and satellites: individual (EPIC, 204129699, b), stars: fundamental parameters
in
Astronomical Journal
volume
152
issue
5
article number
132
publisher
IOP Publishing
external identifiers
  • scopus:84994525460
ISSN
0004-6256
DOI
10.3847/0004-6256/152/5/132
language
English
LU publication?
no
additional info
Publisher Copyright: © 2016. The American Astronomical Society. All rights reserved.
id
f8c47ef8-f58f-45fa-827d-5fae606fc657
date added to LUP
2023-02-03 09:35:27
date last changed
2023-02-20 16:25:16
@article{f8c47ef8-f58f-45fa-827d-5fae606fc657,
  abstract     = {{<p>We report the discovery of K2-31b, the first confirmed transiting hot Jupiter detected by the K2 space mission. We combined K2 photometry with FastCam lucky imaging and FIES and HARPS high-resolution spectroscopy to confirm the planetary nature of the transiting object and derived the system parameters. K2-31b is a 1.8-Jupiter-mass planet on 1.26-day orbit around a G7 V star (M<sub>∗</sub> = 0.91 M<sub>⊙</sub>, R<sub>∗</sub> = 0.78 R<sub>⊙</sub>). The planetary radius is poorly constrained (0.7&lt;R<sub>p</sub>&lt;1.4 R<sub>Jup</sub>), owing to the grazing transit and the low sampling rate of the K2 photometry.16</p>}},
  author       = {{Grziwa, Sascha and Gandolfi, Davide and Csizmadia, Szilard and Fridlund, Malcolm and Parviainen, Hannu and Deeg, Hans J. and Cabrera, Juan and Djupvik, Amanda A. and Albrecht, Simon and Palle, Enric B. and Pätzold, Martin and Béjar, Victor J.S. and Prieto-Arranz, Jorge and Eigmüller, Philipp and Erikson, Anders and Fynbo, Johan P.U. and Guenther, Eike W. and Hatzes, Artie P. and Kiilerich, Amanda and Korth, Judith and Kuutma, Teet and Montañés-Rodríguez, Pilar and Nespral, David and Nowak, Grzegorz and Rauer, Heike and Saario, Joonas and Sebastian, Daniel and Slumstrup, Ditte}},
  issn         = {{0004-6256}},
  keywords     = {{planets and satellites: detection; planets and satellites: individual (EPIC, 204129699, b); stars: fundamental parameters}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{IOP Publishing}},
  series       = {{Astronomical Journal}},
  title        = {{K2-31B, a grazing transiting hot jupiter on a 1.26-day orbit around a bright G7V star}},
  url          = {{http://dx.doi.org/10.3847/0004-6256/152/5/132}},
  doi          = {{10.3847/0004-6256/152/5/132}},
  volume       = {{152}},
  year         = {{2016}},
}