273 citations · 3.4k across the 67 of their papers we have counts for
6 papers · 1 filter
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…
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…
The contribution of secondary eclipses as astrophysical false positives to exoplanet transit surveys
A. Santerne, F. Fressin, R. F. Díaz +3
We investigate in this paper the astrophysical false-positive configuration in exoplanet-transit surveys that involves eclipsing binaries and giant planets which present only a sec…
Analysis of spin-orbit alignment in the WASP-32, WASP-38, and HAT-P-27/WASP-40 systems
D. J. A. Brown, A. Collier Cameron, R. F. Díaz +14
We present measurements of the spin-orbit alignment angle, lambda, for the hot Jupiter systems WASP-32, WASP-38, and HAT-P-27/WASP-40, based on data obtained using the HARPS spectr…