Published 2008
| Version v1
Journal article
Transiting exoplanets from the CoRoT space mission I - CoRoT-Exo-1b: a low-density short-period planet around a G0V star
Creators
- Barge, P.
- Baglin, A.
- Auvergne, M.
- Rauer, H.
- Leger, A.
- Schneider, Jodi
- Pont, F.
- Aigrain, S.
- Almenara, J. -M.
- Alonso, R.
- Barbieri, M.
- Bordé, Pascal
- Bouchy, F.
- Deeg, H. -J.
- de La Reza, R.
- Deleuil, M.
- Dvorak, R.
- Erikson, A.
- Fridlund, M.
- Gillon, M.
- Gondoin, P.
- Guillot, T.
- Hatzes, A.
- Hebrard, G.
- Jorda, L.
- Kabath, P.
- Lammer, H.
- Llebaria, A.
- Loeillet, B.
- Magain, P.
- Mazeh, T.
- Moutou, C.
- Ollivier, M.
- Patzold, M.
- Queloz, D.
- Rouan, D.
- Shporer, A.
- Wuchterl, G.
Contributors
Others:
- Laboratoire d'Astrophysique de Marseille (LAM) ; Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
- Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA) ; Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
- DLR Institute of Planetary Research ; German Aerospace Center (DLR)
- Institut d'Astrophysique de Paris (IAP) ; Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Laboratoire Univers et Théories (LUTH (UMR_8102)) ; Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
- School of Physics ; University of Exeter
- Observatoire Astronomique de l'Université de Genève (ObsGE) ; Université de Genève = University of Geneva (UNIGE)
- Instituto de Astrofisica de Canarias (IAC)
- Institut d'astrophysique spatiale (IAS) ; Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Departement de recherche SPAtiale (DESPA) ; Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
- ON/MCT (ON/MCT, 20921-030, Rio de Janeiro, Brazil)) ; ON/MCT
- Research and Scientific Support Department, ESTEC (RSSD) ; European Space Research and Technology Centre (ESTEC) ; European Space Agency (ESA)-European Space Agency (ESA)
- Geneva Observatory ; Université de Genève = University of Geneva (UNIGE)
- Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)
- Thüringer Landessternwarte Tautenburg (TLS)
- Space Research Institute of Austrian Academy of Sciences (IWF) ; Austrian Academy of Sciences (OeAW)
- School of Physics and Astronomy [Tel Aviv] ; Tel Aviv University [Tel Aviv]
- European Southern Observatory (ESO)
- Institute for Geophysics and Meteorology [Köln] (IGM) ; University of Cologne
- Observatoire de Paris - Site de Paris (OP) ; Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)
Description
Context. The pioneer space mission for photometric planet searches, CoRoT, steadily monitors about 12,000 stars in each of its fields of view; it is able to detect transit candidates early in the processing of the data and before the end of a run. Aims. We report the detection of the first planet discovered by CoRoT and characterizing it with the help of follow-up observations. Methods. Raw data were filtered from outliers and residuals at the orbital period of the satellite. The orbital parameters and the radius of the planet were estimated by best fitting the phase folded light curve with 34 successive transits. Doppler measurements with the SOPHIE spectrograph permitted us to secure the detection and to estimate the planet mass. Results. The accuracy of the data is very high with a dispersion in the 2.17 min binned phase-folded light curve that does not exceed 3.10-4 in flux unit. The planet orbits a mildly metal-poor G0V star of magnitude V=13.6 in 1.5 days. The estimated mass and radius of the star are 0.95+-0.15Msun and 1.11+-0.05Rsun. We find the planet has a radius of 1.49+-0.08Rjup, a mass of 1.03+-0.12Mjup, and a particularly low mean density of 0.38 +-0.05g cm-3.
Abstract
A&A letters (in press) - 4 pages - 3 figuresAbstract
International audienceAdditional details
Identifiers
- URL
- https://hal.archives-ouvertes.fr/hal-00325096
- URN
- urn:oai:HAL:hal-00325096v1
Origin repository
- Origin repository
- UNICA