ELODIE metallicity-biased search for transiting Hot Jupiters^*

IV. Intermediate period planets orbiting the stars HD 43691 and HD 132406

¹ Observatoire Astronomique de l'Université de Genève, 1290 Sauverny, Switzerland e-mail: Ronaldo.daSilva@obs.unige.ch
² Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis bd Arago, 75014 Paris, France
³ Laboratoire d'Astrophysique de Marseille, UMR6110 CNRS, Université de Provence, Traverse du Siphon, BP 8, 13376 Marseille Cedex 12, France
⁴ Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France
⁵ Centro de Astrofísica, Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal
⁶ Department of Geophysics and Planetary Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel

Received: 16 February 2007
Accepted: 4 July 2007

Abstract

We report here the discovery of two planet candidates as a result of our planet-search programme biased in favour of high-metallicity stars, using the ELODIE spectrograph at the Observatoire de Haute Provence. One candidate has a minimum mass M_Jup and is orbiting the metal-rich star HD 43691 with period days and eccentricity . The other planet has a minimum mass M_Jup and orbits the slightly metal-rich star HD 132406 with period days and eccentricity e = 0.34. Additional observations for both stars were performed using the new SOPHIE spectrograph that replaces the ELODIE instrument, allowing an improved orbital solution for the systems.