Transiting exoplanets from the CoRoT space mission III. The spectroscopic transit of CoRoT-Exo-2b with SOPHIE and HARPS - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2008

Transiting exoplanets from the CoRoT space mission III. The spectroscopic transit of CoRoT-Exo-2b with SOPHIE and HARPS

M. Deleuil
S. Aigrain
  • Fonction : Auteur
Pascal Bordé
R. Dvorak
  • Fonction : Auteur
P. Gondoin
  • Fonction : Auteur
L. Jorda

Résumé

We report on the spectroscopic transit of the massive hot-Jupiter CoRoT-Exo-2b observed with the high-precision spectrographs SOPHIE and HARPS. By modeling the radial velocity anomaly occurring during the transit due to the Rossiter-McLaughlin (RM) effect, we determine the sky-projected angle between the stellar spin and the planetary orbital axis to be close to zero lambda=7.2+-4.5 deg, and we secure the planetary nature of CoRoT-Exo-2b. We discuss the influence of the stellar activity on the RM modeling. Spectral analysis of the parent star from HARPS spectra are presented.

Dates et versions

hal-00325064 , version 1 (26-09-2008)

Identifiants

Citer

F. Bouchy, D. Queloz, M. Deleuil, B. Loeillet, A. P. Hatzes, et al.. Transiting exoplanets from the CoRoT space mission III. The spectroscopic transit of CoRoT-Exo-2b with SOPHIE and HARPS. Astronomy and Astrophysics - A&A, 2008, 482, pp.L25-L28. ⟨hal-00325064⟩
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