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The ESPRI project: astrometric exoplanet search with PRIMA I. Instrument description and performance of first light observations
J. Sahlmann, T. Henning, D. Queloz +42
The ESPRI project relies on the astrometric capabilities offered by the PRIMA facility of the Very Large Telescope Interferometer for the discovery and study of planetary systems.…
WASP-77 Ab: A transiting hot Jupiter planet in a wide binary system
P. F. L. Maxted, D. R. Anderson, A. Collier Cameron +16
We report the discovery of a transiting planet with an orbital period of 1.36d orbiting the brighter component of the visual binary star BD -07 436. The host star, WASP-77A, is a m…
The CORALIE survey for southern extrasolar planets XVII. New and updated long period and massive planets
M. Marmier, D. Ségransan, S. Udry +24
Since 1998, a planet-search program around main sequence stars within 50 pc in the southern hemisphere, is carried out with the CORALIE echelle spectrograph at La Silla Observatory…
WASP-71b: a bloated hot Jupiter in a 2.9-day, prograde orbit around an evolved F8 star
A. M. S. Smith, D. R. Anderson, F. Bouchy +20
We report the discovery by the WASP transit survey of a highly-irradiated, massive (2.242 +/- 0.080 MJup) planet which transits a bright (V = 10.6), evolved F8 star every 2.9 days.…
WASP-64b and WASP-72b: two new transiting highly irradiated giant planets
M. Gillon, D. R. Anderson, A. Collier-Cameron +17
We report the discovery by the WASP transit survey of two new highly irradiated giant planets transiting moderately bright stars. WASP-64b is slightly more massive (1.271+-0.068 M_…
Narrow-angle astrometry with PRIMA
J. Sahlmann, D. Ségransan, A. Mérand +16
The Extrasolar Planet Search with PRIMA project (ESPRI) aims at characterising and detecting extrasolar planets by measuring the host star's reflex motion using the narrow-angle as…