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 Astrofisico 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 Astrofisico de Canarias

M. Patzold

University of Cologne

E. Palle

Instituto Astrofisico de Canarias

University of La Laguna

J. Prieto-Arranz

Instituto Astrofisico 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 6 171

Subject Categories

Astronomy, Astrophysics and Cosmology

DOI

10.3847/0004-6256/151/6/171

More information

Latest update

5/29/2018