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.
field
solar
tidal evolution
planets and satellites: individual (EPIC 211089792 b (K2-29 b)
stars: rotation
stars: fundamental parameters
v80
1981
eccentricity
planets and satellites: detection
mission
astrophysics and space science
raizys v
p353
kepler
systems
EPIC 210957318 b (K2-30 b))
planetary transit candidates
Astronomy & Astrophysics
exoplanets
stars
Author
M. C. Johnson
The University of Texas at Austin
D. Gandolfi
Heidelberg-Königstuhl State Observatory
University of Turin
Malcolm Fridlund
Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics
S. Csizmadia
German Aerospace Center (DLR)
M. Endl
The University of Texas at Austin
J. Cabrera
German Aerospace Center (DLR)
W. D. Cochran
The University of Texas at Austin
H. J. Deeg
Instituto de Astrofísica de Canarias
University of La Laguna
S. Grziwa
University of Cologne
I. Ramirez
The University of Texas at Austin
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
University of La Laguna
Instituto de Astrofísica de Canarias
M. Patzold
University of Cologne
E. Palle
Instituto de Astrofísica de Canarias
University of La Laguna
J. Prieto-Arranz
Instituto de Astrofísica de Canarias
University of La Laguna
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
Astronomy, Astrophysics and Cosmology
DOI
10.3847/0004-6256/151/6/171