TWO HOT JUPITERS FROM K2 CAMPAIGN 4
Journal article, 2016
We confirm the planetary nature of two transiting hot Jupiters discovered by the Kepler spacecraft's K2 extended mission in its Campaign 4, using precise radial velocity measurements from FIES @NOT, HARPS-N@TNG, and the coude spectrograph on the McDonald Observatory 2.7 m telescope. K2-29 b (EPIC 211089792b) transits a K1V star with a period of 3.2589263 +/- 0.0000015 days; its orbit is slightly eccentric (e = 0.084(-0.023)(+0.032)). It has a radius of R-p = 1.000(-0.067)(+0.071) R-J and a mass of M-p = 0.6131-0.613-0.026 M-J. Its host star exhibits significant rotational variability, and we measure a rotation period of pot = 10.777 +/- 0.031 days. K2-30 b (EPIC 210957318 b) transits a G6V star with a period of 4.098503 +/- 0.000011 days. It has a radius of R-p = 1.039(-0.051)(+0.050) Ri and a mass of M-p = 0.579(-0.027)(+0.028) M-J. The star has a low metallicity for a hot Jupiter host, [Fe/H] = 0.15 +/- 0.05.
1981
solar
stars
p353
tidal evolution
astrophysics and space science
kepler
mission
stars: rotation
eccentricity
Astronomy & Astrophysics
planets and satellites: detection
stars: fundamental parameters
v80
raizys v
exoplanets
EPIC 210957318 b (K2-30 b))
field
planetary transit candidates
planets and satellites: individual (EPIC 211089792 b (K2-29 b)
systems
Author
M. C. Johnson
University of Texas
D. Gandolfi
University of Turin
Heidelberg-Königstuhl State Observatory
Malcolm Fridlund
Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics
S. Csizmadia
German Aerospace Center (DLR)
M. Endl
University of Texas
J. Cabrera
German Aerospace Center (DLR)
W. D. Cochran
University of Texas
H. J. Deeg
University of La Laguna
Instituto de Astrofísica de Canarias
S. Grziwa
University of Cologne
I. Ramirez
University of Texas
A. Hatzes
Thüringer Landessternwarte Tautenburg
Philipp Eigmüller
German Aerospace Center (DLR)
O. Barragan
University of Turin
A. Erikson
German Aerospace Center (DLR)
E. W. Guenther
Thüringer Landessternwarte Tautenburg
J. Korth
University of Cologne
T. Kuutma
Nordic Optical Telescope
D. Nespral
Instituto de Astrofísica de Canarias
University of La Laguna
M. Patzold
University of Cologne
E. Palle
University of La Laguna
Instituto de Astrofísica de Canarias
J. Prieto-Arranz
University of La Laguna
Instituto de Astrofísica de Canarias
H. Rauer
German Aerospace Center (DLR)
Technische Universität Berlin
J. Saario
Nordic Optical Telescope
Astronomical Journal
0004-6256 (ISSN) 1538-3881 (eISSN)
Vol. 151 6 171Subject Categories (SSIF 2011)
Astronomy, Astrophysics and Cosmology
DOI
10.3847/0004-6256/151/6/171