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SOPHIE velocimetry of Kepler transit candidates: X KOI-142c: first radial velocity confirmation of a non-transiting exoplanet discovered by transit timing
S. C. C. Barros, R. F. Diaz, A. Santerne +9
The exoplanet KOI-142b (Kepler-88b) shows transit timing variations (TTVs) with a semi-amplitude of hours, earning the nickname of "king of transit variations". Only th…
The SOPHIE search for northern extrasolar planets: VI. Three new hot Jupiters in multi-planet extrasolar systems
C. Moutou, G. Hebrard, F. Bouchy +21
We present high-precision radial-velocity measurements of three solar-type stars: HD 13908, HD 159243, and HIP 91258. The observations were made with the SOPHIE spectrograph at the…
Astrophysical false positives in exoplanet transit surveys: why do we need bright stars ?
A. Santerne, R. F. Díaz, J. -M. Almenara +3
Astrophysical false positives that mimic planetary transit are one of the main limitation to exoplanet transit surveys. In this proceeding, we review the issue of the false positiv…
Extrasolar planets and brown dwarfs around A--F type stars. VIII. A giant planet orbiting the young star HD113337
S. Borgniet, I. Boisse, A. -M. Lagrange +19
In the frame of the search for extrasolar planets and brown dwarfs around early-type main-sequence stars, we present the detection of a giant planet around the young F-type star HD…
Characterizing small planets transiting small stars with SPIRou
A. Santerne, J. -F. Donati, R. Doyon +9
SPIRou, a near infrared spectropolarimeter, is a project of new instrument to be mounted at the Canada France Hawaii Telescope in 2017. One of the main objectives of SPIRou is to r…
SOPHIE velocimetry of Kepler transit candidates IX. KOI-415 b: a long-period, eccentric transiting brown dwarf to an evolved Sun
C. Moutou, A. S. Bonomo, G. Bruno +8
We report the discovery of a long-period brown-dwarf transiting companion of the solar-type star KOI-415. The transits were detected by the Kepler space telescope. We conducted Dop…