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 Astrofisico 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 Astrofisico de Canarias

M. Patzold

University of Cologne

V. J. S. Bejar

University of La Laguna

Instituto Astrofisico de Canarias

J. Prieto-Arranz

University of La Laguna

Instituto Astrofisico 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 Astrofisico de Canarias

D. Nespral

University of La Laguna

Instituto Astrofisico de Canarias

G. Nowak

Instituto Astrofisico 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 5 132

Subject Categories

Astronomy, Astrophysics and Cosmology

DOI

10.3847/0004-6256/152/5/132

More information

Latest update

5/29/2018