Kepler-432 b: a massive planet in a highly eccentric orbit transiting a red giant
Ciceri, S.; Lillo-Box, J.; Southworth, J.; Mancini, L.; Th. Henning; Barrado, D.
Dr John Taylor email@example.com
We report the first disclosure of the planetary nature of Kepler-432?b (aka Kepler object of interest KOI-1299.01). We accurately constrained its mass and eccentricity by high-precision radial velocity measurements obtained with the CAFE spectrograph at the CAHA 2.2-m telescope. By simultaneously fitting these new data and Kepler photometry, we found that Kepler-432?b is a dense transiting exoplanet with a mass of Mp = 4.87 ± 0.48MJup and radius of Rp = 1.120 ± 0.036RJup. The planet revolves every 52.5?d around a K giant star that ascends the red giant branch, and it moves on a highly eccentric orbit with e = 0.535 ± 0.030. By analysing two near-IR high-resolution images, we found that a star is located at 1.1'' from Kepler-432, but it is too faint to cause significant effects on the transit depth. Together with Kepler-56 and Kepler-91, Kepler-432 occupies an almost-desert region of parameter space, which is important for constraining the evolutionary processes of planetary systems.
|Journal Article Type||Article|
|Acceptance Date||Nov 28, 2014|
|Online Publication Date||Dec 22, 2014|
|Journal||ASTRONOMY & ASTROPHYSICS|
|Peer Reviewed||Peer Reviewed|
|Keywords||planetary systems, stars: fundamental parameters, stars: individual: Kepler-432|
Kepler-432 b - a massive planet in a highly eccentric orbit transiting a red giant.pdf
Publisher Licence URL
You might also like
REDISCUSSION OF ECLIPSING BINARIES. PAPER 13: THE F-TYPE TWIN SYSTEM IT CASSIOPEIAE
Tidally perturbed gravity-mode pulsations in a sample of close eclipsing binaries