K2-31B, a Grazing Transiting Hot Jupiter on a 1.26-Day Orbit Around a Bright G7v Star
Journal article, 2016
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 a. 1.26-day orbit around a G7 V star (M-star = 0.91 M-circle dot, R-star = 0.78 R-circle dot). The planetary radius is poorly constrained (0.7 < R-p < 1.4 R-Jup),(15). owing to the grazing transit and the low sampling rate of the K2 photometry.(16)
204129699
planets and satellites: individual (EPIC
stars: fundamental parameters
b)
planets and satellites: detection
Author
S. Grziwa
University of Cologne
D. Gandolfi
University of Turin
Heidelberg-Königstuhl State Observatory
S. Csizmadia
German Aerospace Center (DLR)
Malcolm Fridlund
Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics
H. Parviainen
University of Oxford
H. J. Deeg
Instituto de Astrofísica de Canarias
University of La Laguna
J. Cabrera
German Aerospace Center (DLR)
A. A. Djupvik
Nordic Optical Telescope
S. Albrecht
Aarhus University
E. Palle
University of La Laguna
Instituto de Astrofísica de Canarias
M. Patzold
University of Cologne
V. J. S. Bejar
University of La Laguna
Instituto de Astrofísica de Canarias
J. Prieto-Arranz
University of La Laguna
Instituto de Astrofísica de Canarias
P. Eigmuller
German Aerospace Center (DLR)
A. Erikson
German Aerospace Center (DLR)
J.P.U. Fynbo
Niels Bohr Institute
E. W. Guenther
Thüringer Landessternwarte Tautenburg
A. Hatzes
Thüringer Landessternwarte Tautenburg
A. Kiilerich
Aarhus University
J. Korth
University of Cologne
T. Kuutma
Nordic Optical Telescope
P. M. Rodriguez
University of La Laguna
Instituto de Astrofísica de Canarias
D. Nespral
University of La Laguna
Instituto de Astrofísica de Canarias
G. Nowak
Instituto de Astrofísica de Canarias
University of La Laguna
H. Rauer
Technische Universität Berlin
German Aerospace Center (DLR)
J. Saario
Nordic Optical Telescope
D. Sebastian
Thüringer Landessternwarte Tautenburg
D. Slumstrup
Aarhus University
Nordic Optical Telescope
Astronomical Journal
0004-6256 (ISSN) 1538-3881 (eISSN)
Vol. 152 5 132Subject Categories
Astronomy, Astrophysics and Cosmology
DOI
10.3847/0004-6256/152/5/132