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Issue A&A
Volume 506, Number 1, October IV 2009
The CoRoT space mission: early results
Page(s) 281 - 286
Section Planets and planetary systems
DOI http://dx.doi.org/10.1051/0004-6361/200911902
Published online 11 August 2009

A&A 506, 281-286 (2009)
DOI: 10.1051/0004-6361/200911902

Transiting exoplanets from the CoRoT space mission

VII. The “hot-Jupiter”-type planet CoRoT-5b
H. Rauer1, 2, D. Queloz3, Sz. Csizmadia1, M. Deleuil4, R. Alonso4, S. Aigrain5, J. M. Almenara6, M. Auvergne7, A. Baglin7, P. Barge4, P. Bordé8, F. Bouchy9, H. Bruntt10, J. Cabrera1, L. Carone11, S. Carpano12, R. De la Reza13, H. J. Deeg6, R. Dvorak14, A. Erikson1, M. Fridlund12, D. Gandolfi15, M. Gillon3, 16, T. Guillot17, E. Guenther15, A. Hatzes15, G. Hébrard9, P. Kabath1, L. Jorda4, H. Lammer18, A. Léger8, A. Llebaria4, P. Magain16, T. Mazeh19, C. Moutou4, M. Ollivier8, M. Pätzold11, F. Pont5, M. Rabus6, S. Renner1, D. Rouan7, A. Shporer19, B. Samuel8, J. Schneider20, A. H. M. J. Triaud3, and G. Wuchterl15

1  Institute of Planetary Research, DLR, Rutherfordstr. 2, 12489 Berlin, Germany
    e-mail: heike.rauer@dlr.de
2  Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
3  Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290 Sauverny, Switzerland
4  Laboratoire d'Astrophysique de Marseille, CNRS UMR 6110, Traverse du Siphon, 13376 Marseille, France
5  School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, UK
6  Instituto de Astrofýsica de Canarias, 38205 La Laguna, Tenerife, Spain
7  LESIA, CNRS UMR 8109, Observatoire de Paris, 5 place J. Janssen, 92195 Meudon, France
8  Institut d'Astrophysique Spatiale, Université Paris XI, 91405 Orsay, France
9  Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis Bd Arago, 75014 Paris, France
10  Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006, Australia
11  Rheinisches Institut für Umweltforschung an der Universität zu Köln, Abt. Planetenforschung, Aachener Str. 209, 50931 Köln, Germany
12  Research and Scientific Support Department, European Space Agency, ESTEC, 2200 Noordwijk, The Netherlands
13  Observatorio Nacional, Rio de Janeiro, RJ, Brazil
14  Institute for Astronomy, University of Vienna, Türkenschanzstrasse 17, 1180 Vienna, Austria
15  Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany
16  Institut d'Astrophysique et de Géophysique, Université de Liège, Allée du 6 août 17, Sart Tilman, Liège 1, Belgium
17  Observatoire de la Côte d'Azur, Laboratoire Cassiopée, CNRS UMR 6202, BP 4229, 06304 Nice Cedex 4, France
18  Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042 Graz, Austria
19  School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
20  LUTH, Observatoire de Paris-Meudon, 5 place J. Janssen, 92195 Meudon, France

Received 20 February 2009 / Accepted 23 July 2009

Abstract
Aims. The CoRoT space mission continues to photometrically monitor about 12 000 stars in its field-of-view for a series of target fields to search for transiting extrasolar planets ever since 2007. Deep transit signals can be detected quickly in the “alarm-mode” in parallel to the ongoing target field monitoring. CoRoT's first planets have been detected in this mode.
Methods. The CoRoT raw lightcurves are filtered for orbital residuals, outliers, and low-frequency stellar signals. The phase folded lightcurve is used to fit the transit signal and derive the main planetary parameters. Radial velocity follow-up observations were initiated to secure the detection and to derive the planet mass.
Results. We report the detection of CoRoT-5b, detected during observations of the LRa01 field, the first long-duration field in the galactic anti-center direction. CoRoT-5b is a “hot Jupiter-type” planet with a radius of 1.388+0.046-0.047 $R_{\rm Jup}$, a mass of 0.467+0.047-0.024 $M_{\rm Jup}$, and therefore, a mean density of 0.217+0.031-0.025  $\rm g\,cm^{-3}$. The planet orbits an F9V star of 14.0 mag in $4.0378962 \pm 0.0000019$ days at an orbital distance of 0.04947+0.00026-0.00029 AU.


Key words: planets and satellites: general -- techniques: photometric -- techniques: radial velocities



© ESO 2009

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