Bibcode
Bouchy, F.; Queloz, D.; Deleuil, M.; Loeillet, B.; Hatzes, A. P.; Aigrain, S.; Alonso, R.; Auvergne, M.; Baglin, A.; Barge, P.; Benz, W.; Bordé, P.; Deeg, H. J.; de La Reza, R.; Dvorak, R.; Erikson, A.; Fridlund, M.; Gondoin, P.; Guillot, T.; Hébrard, G.; Jorda, L.; Lammer, H.; Léger, A.; Llebaria, A.; Magain, P.; Mayor, M.; Moutou, C.; Ollivier, M.; Pätzold, M.; Pepe, F.; Pont, F.; Rauer, H.; Rouan, D.; Schneider, J.; Triaud, A. H. M. J.; Udry, S.; Wuchterl, G.
Bibliographical reference
Astronomy and Astrophysics, Volume 482, Issue 3, 2008, pp.L25-L28
Advertised on:
5
2008
Journal
Citations
110
Refereed citations
90
Description
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 λ = 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.
Observations made with SOPHIE spectrograph at Observatoire de Haute
Provence, France (PNP.07A.MOUT) and HARPS spectrograph at ESO La Silla
Observatory (079.C-0127(F)). The CoRoT space mission, launched on
December 27th 2006, has been developed and is operated by CNES, with the
contribution of Austria, Belgium, Brasil, ESA, Germany, and Spain.
Related projects
Helio and Astero-Seismology and Exoplanets Search
The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary
Savita
Mathur