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

Abstract

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.

A&A Letters (in press), 5 pages, 2 figures

References in corpus (6)

• Measurement of Spin-Orbit Alignment in an Extrasolar Planetary System
• The Rossiter-McLaughlin effect and analytic radial velocity curves for transiting extrasolar planetary systems
• A correlation between the heavy element content of transiting extrasolar planets and the metallicity of their parent stars
• Prospects for the Characterization and Confirmation of Transiting Exoplanets via the Rossiter-McLaughlin Effect
• Transiting exoplanets from the CoRoT space mission II. CoRoT-Exo-2b: A transiting planet around an active G star
• Refined parameters and spectroscopic transit of the super-massive planet HD147506b

Cited by in corpus (37)

• Hot Stars with Hot Jupiters Have High Obliquities
• Obliquities of Hot Jupiter host stars: Evidence for tidal interactions and primordial misalignments
• Homogeneous studies of transiting extrasolar planets. IV. Thirty systems with space-based light curves
• The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets
• Chemical consequences of the C/O ratio on hot Jupiters: Examples from WASP-12b,CoRoT-2b, XO-1b, and HD 189733b
• On the Formation of Hot Jupiters in Stellar Binaries
• Evidence of Possible Spin-Orbit Misalignment Along the Line of Sight in Transiting Exoplanet Systems
• Transiting exoplanets from the CoRoT space mission II. CoRoT-Exo-2b: A transiting planet around an active G star
• Tidal Evolution of Close-in Planets
• The Rossiter-McLaughlin effect of CoRoT-3b & HD189733b
• How stellar activity affects the size estimates of extrasolar planets
• Homogeneous studies of transiting extrasolar planets. II. Physical properties
• The thermal emission of the young and massive planet CoRoT-2b at 4.5 and 8 microns
• Using Star Spots to Measure the Spin-orbit Alignment of Transiting Planets
• The SOPHIE search for northern extrasolar planets III. A Jupiter-mass companion around HD 109246
• Calibration of Equilibrium Tide Theory for Extrasolar Planet Systems II
• Discovery and Rossiter-McLaughlin Effect of Exoplanet Kepler-8b
• Transiting exoplanets from the CoRoT space mission IV: CoRoT-Exo-4b: A transiting planet in a 9.2 day synchronous orbit
• Warm Spitzer Photometry of the Transiting Exoplanets CoRoT-1 and CoRoT-2 at Secondary Eclipse
• Time evolution and rotation of starspots on CoRoT-2 from the modelling of transit photometry
• The secondary eclipse of the transiting exoplanet CoRoT-2b
• An analysis of the CoRoT-2 system: A young spotted star and its inflated giant planet
• Planetary eclipse mapping of CoRoT-2a. Evolution, differential rotation, and spot migration
• CoRoT-2a magnetic activity: hints for possible star-planet interaction
• WASP-23b: a transiting hot Jupiter around a K dwarf and its Rossiter-McLaughlin effect
• Rossiter-McLaughlin Effect Measurements for WASP-16, WASP-25 and WASP-31
• Planetary transit candidates in the CoRoT LRa01 field
• Transiting exoplanets from the CoRoT space mission: XIII. CoRoT-14b: an unusually dense very hot Jupiter
• Estimating the masses of extra-solar planets
• Activity induced variation in spin-orbit angles as derived from Rossiter-McLaughlin measurements
• Optimizing exoplanet transit searches around low-mass stars with inclination constraints
• Transiting exoplanets from the CoRoT space mission. XVIII. CoRoT-18b: a massive hot jupiter on a prograde, nearly aligned orbit
• On the possibility of detecting extrasolar planets' atmospheres with the Rossiter-McLaughlin-effect
• Characterization of CoRoT Target Fields with the Berlin Exoplanet Search Telescope: Identification of Periodic Variable Stars in the LRa1 Field
• Characterization of CoRoT target fields with BEST: Identification of periodic variable stars in the LRa1 field
• Prospecting transit duration variations in extrasolar planetary systems
• Search for Super Earths by Timing of Transits with CoRoT