TWO HOT JUPITERS FROM K2 CAMPAIGN 4
Artikel i vetenskaplig tidskrift, 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.

stars: rotation

stars

tidal evolution

astrophysics and space science

systems

solar

EPIC 210957318 b (K2-30 b))

1981

kepler

planets and satellites: individual (EPIC 211089792 b (K2-29 b)

p353

eccentricity

v80

Astronomy & Astrophysics

mission

planets and satellites: detection

planetary transit candidates

raizys v

exoplanets

stars: fundamental parameters

field

Författare

M. C. Johnson

University of Texas at Austin

D. Gandolfi

Universita degli Studi di Torino

Landessternwarte Heidelberg

Malcolm Fridlund

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

S. Csizmadia

Deutsches Zentrum fur Luft- Und Raumfahrt

M. Endl

University of Texas at Austin

J. Cabrera

Deutsches Zentrum fur Luft- Und Raumfahrt

W. D. Cochran

University of Texas at Austin

H. J. Deeg

Universidad de la Laguna

Instituto Astrofisico de Canarias

S. Grziwa

Universitat zu Koln

I. Ramirez

University of Texas at Austin

A. Hatzes

Thuringer Landessternwarte Tautenburg

Philipp Eigmüller

Deutsches Zentrum fur Luft- Und Raumfahrt

O. Barragan

Universita degli Studi di Torino

A. Erikson

Deutsches Zentrum fur Luft- Und Raumfahrt

E. W. Guenther

Thuringer Landessternwarte Tautenburg

J. Korth

Universitat zu Koln

T. Kuutma

Nordic Optical Telescope

D. Nespral

Universidad de la Laguna

Instituto Astrofisico de Canarias

M. Patzold

Universitat zu Koln

E. Palle

Instituto Astrofisico de Canarias

Universidad de la Laguna

J. Prieto-Arranz

Instituto Astrofisico de Canarias

Universidad de la Laguna

H. Rauer

Technische Universitat Berlin

Deutsches Zentrum fur Luft- Und Raumfahrt

J. Saario

Nordic Optical Telescope

Astronomical Journal

0004-6256 (ISSN) 1538-3881 (eISSN)

Vol. 151 171

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.3847/0004-6256/151/6/171