Article (Scientific journals)
Transiting exoplanets from the CoRoT space mission. XXII. CoRoT-16b: a hot Jupiter with a hint of eccentricity around a faint solar-like star
Ollivier, M; Gillon, Michaël; Santerne, A et al.
2012In Astronomy and Astrophysics, 541, p. 149
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Keywords :
stars: fundamental parameters; techniques: photometric; techniques: spectroscopic; techniques: radial velocities; planetary systems
Abstract :
[en] <BR /> Aims: We report the discovery of CoRoT-16b, a low density hot jupiter that orbits a faint G5V star (mV = 15.63) in 5.3523 ± 0.0002 days with slight eccentricity. A fit of the data with no a priori assumptions on the orbit leads to an eccentricity of 0.33 ± 0.1. We discuss this value and also derive the mass and radius of the planet. <BR /> Methods: We analyse the photometric transit curve of CoRoT-16 given by the CoRoT satellite, and radial velocity data from the HARPS and HIRES spectrometers. A combined analysis using a Markov chain Monte Carlo algorithm is used to get the system parameters. <BR /> Results: CoRoT-16b is a 0.535 -0.083/+0.085 M[SUB]J[/SUB], 1.17 -0.14/+0.16 R[SUB]J[/SUB] hot Jupiter with a density of 0.44 -0.14/+0.21 g cm[SUP]-3[/SUP]. Despite its short orbital distance (0.0618 ± 0.0015 AU) and the age of the parent star (6.73 ± 2.8 Gyr), the planet orbit exhibits significantly non-zero eccentricity. This is very uncommon for this type of objects as tidal effects tend to circularise the orbit. This value is discussed taking into account the characteristics of the star and the observation accuracy. The CoRoT space mission, launched on December 27, 2006, has been developed and is operated by the CNES with the contribution of Austria, Belgium, Brasil, ESA, Germany, and Spain.Observations made with the HARPS spectrograph at ESO La Silla Observatory (HARPS programs 083.C-0186 and 184.C-0639) and the HIRES spectrograph at the Keck Observatory (NASA-Keck programs N035Hr, N143Hr and N095Hr).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Ollivier, M;  Institut d'astrophysique spatiale, Université Paris-Sud 11 & CNRS (UMR 8617), Bât. 121, 91405, Orsay, France
Gillon, Michaël  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Santerne, A;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Wuchterl, G;  Thüringer Landessternwarte, 07778, Tautenburg, Germany
Havel, M;  Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 4229, 06304, Nice Cedex 4, France
Bruntt, H;  Department of Physics and AstronomyAarhus University, 8000, Aarhus C, Denmark
Bordé, P;  Institut d'astrophysique spatiale, Université Paris-Sud 11 & CNRS (UMR 8617), Bât. 121, 91405, Orsay, France
Pasternacki, T;  Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany
Endl, M;  McDonald Observatory, University of Texas at Austin, Austin, 78712, TX, USA
Gandolfi, D;  Thüringer Landessternwarte, 07778, Tautenburg, Germany ; Research and Scientific Support Department, European Space Agency, Keplerlaan, 2200 AG, Noordwijk, The Netherlands
Aigrain, S;  Department of Physics, Denys Wilkinson Building Keble Road, Oxford, OX1 3RH, UK
Almenara, J M;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France ; Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Spain
Alonso, R;  Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290, Sauverny, Switzerland
Auvergne, M;  LESIA, UMR 8109 CNRS, Observatoire de Paris, UVSQ, Université Paris-Diderot, 5 place J. Janssen, 92195, Meudon, France
Baglin, A;  LESIA, UMR 8109 CNRS, Observatoire de Paris, UVSQ, Université Paris-Diderot, 5 place J. Janssen, 92195, Meudon, France
Barge, P;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Bonomo, A S;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Bouchy, F;  Institut d'astrophysique de Paris, Université Paris 6 & CNRS (UMR 7095), 98 bd Arago, 75014, Paris, France ; Observatoire de Haute-Provence, CNRS & OAMP, 04870 St-Michel l', Observatoire, France
Cabrera, J;  Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany
Carone, L;  Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Str. 209, 50931, Köln, Germany
Carpano, S;  Research and Scientific Support Department, European Space Agency, Keplerlaan, 2200 AG, Noordwijk, The Netherlands
Cavarroc, C;  Institut d'astrophysique spatiale, Université Paris-Sud 11 & CNRS (UMR 8617), Bât. 121, 91405, Orsay, France
Cochran, W D;  McDonald Observatory, University of Texas at Austin, Austin, 78712, TX, USA
Csizmadia, Sz;  Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany
Deeg, H J;  Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Spain
Deleuil, M;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Diaz, R F;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Dvorak, R;  Institute for Astronomy, University of Vienna, Türkenschanzstrasse 17, 1180, Vienna, Austria
Erikson, A;  Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany
Ferraz-Mello, S;  Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, Brasil
Fridlund, M;  Research and Scientific Support Department, European Space Agency, Keplerlaan, 2200 AG, Noordwijk, The Netherlands
Gazzano, J*-C;  Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 4229, 06304, Nice Cedex 4, France
Grziwa, S;  Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Str. 209, 50931, Köln, Germany
Guenther, E;  Thüringer Landessternwarte, 07778, Tautenburg, Germany
Guillot, T;  Université de Nice-Sophia Antipolis, CNRS UMR 6202, Observatoire de la Côte d'Azur, BP 4229, 06304, Nice Cedex 4, France
Guterman, P;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Hatzes, A;  Thüringer Landessternwarte, 07778, Tautenburg, Germany
Hébrard, G;  Institut d'astrophysique de Paris, Université Paris 6 & CNRS (UMR 7095), 98 bd Arago, 75014, Paris, France
Lammer, H;  Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, Graz, Austria
Léger, A;  Institut d'astrophysique spatiale, Université Paris-Sud 11 & CNRS (UMR 8617), Bât. 121, 91405, Orsay, France
Lovis, C;  Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290, Sauverny, Switzerland
MacQueen, P J;  McDonald Observatory, University of Texas at Austin, Austin, 78712, TX, USA
Mayor, M;  Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290, Sauverny, Switzerland
Mazeh, T;  Wise Observatory, Tel AvivUniversity, 69978, Tel Aviv, Israel
Moutou, C;  Laboratoire d'Astrophysique de Marseille - LAM, Université d'Aix-Marseille & CNRS, UMR 7326, 38 rue F. Joliot-Curie, 13388, Marseille Cedex 13, France
Ofir, A;  Wise Observatory, Tel AvivUniversity, 69978, Tel Aviv, Israel
Pätzold, M;  Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Str. 209, 50931, Köln, Germany
Queloz, D;  Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290, Sauverny, Switzerland
Rauer, H;  Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany ; Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
Rouan, D;  LESIA, UMR 8109 CNRS, Observatoire de Paris, UVSQ, Université Paris-Diderot, 5 place J. Janssen, 92195, Meudon, France
Samuel, B;  LESIA, UMR 8109 CNRS, Observatoire de Paris, UVSQ, Université Paris-Diderot, 5 place J. Janssen, 92195, Meudon, France ; Institut d'astrophysique spatiale, Université Paris-Sud 11 & CNRS (UMR 8617), Bât. 121, 91405, Orsay, France
Schneider, J;  Laboratoire de l'univers et de ses théories, Observatoire de Paris & CNRS (UMR 8102), 5 place Jules Janssen, 92195, Meudon, France
Tadeu dos Santos, M;  Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, Brasil
Tal-Or, L;  Wise Observatory, Tel AvivUniversity, 69978, Tel Aviv, Israel
Tingley, B;  Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, 38200 La Laguna, Tenerife, Spain
Weingrill, J;  Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, Graz, Austria
More authors (46 more) Less
Language :
English
Title :
Transiting exoplanets from the CoRoT space mission. XXII. CoRoT-16b: a hot Jupiter with a hint of eccentricity around a faint solar-like star
Publication date :
01 May 2012
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
541
Pages :
149
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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