Artículo

Bonomo, A.S.; Hébrard, G.; Raymond, S.N.; Bouchy, F.; Lecavelier Des Etangs, A.; Bordé, P.; Aigrain, S.; Almenara, J.-M.; Alonso, R.; Cabrera, J.; Csizmadia, S.; Damiani, C.; Deeg, H.J.; Deleuil, M.; Díaz, R.F.; Erikson, A.; Fridlund, M.; Gandolfi, D. (...) Schneider, J. "A deeper view of the CoRoT-9 planetary system: A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering" (2017) Astronomy and Astrophysics. 603
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Abstract:

CoRoT-9b is one of the rare long-period (P = 95.3 days) transiting giant planets with a measured mass known to date. We present a new analysis of the CoRoT-9 system based on five years of radial-velocity (RV) monitoring with HARPS and three new space-based transits observed with CoRoT and Spitzer. Combining our new data with already published measurements we redetermine the CoRoT-9 system parameters and find good agreement with the published values. We uncover a higher significance for the small but non-zero eccentricity of CoRoT-9b () and find no evidence for additional planets in the system. We use simulations of planet-planet scattering to show that the eccentricity of CoRoT-9b may have been generated by an instability in which a ∼ 50 M ⊕ planet was ejected from the system. This scattering would not have produced a spin-orbit misalignment, so we predict that the CoRoT-9b orbit should lie within a few degrees of the initial plane of the protoplanetary disk. As a consequence, any significant stellar obliquity would indicate that the disk was primordially tilted. © ESO, 2017.

Registro:

Documento: Artículo
Título:A deeper view of the CoRoT-9 planetary system: A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering
Autor:Bonomo, A.S.; Hébrard, G.; Raymond, S.N.; Bouchy, F.; Lecavelier Des Etangs, A.; Bordé, P.; Aigrain, S.; Almenara, J.-M.; Alonso, R.; Cabrera, J.; Csizmadia, S.; Damiani, C.; Deeg, H.J.; Deleuil, M.; Díaz, R.F.; Erikson, A.; Fridlund, M.; Gandolfi, D.; Guenther, E.; Guillot, T.; Hatzes, A.; Izidoro, A.; Lovis, C.; Moutou, C.; Ollivier, M.; Pätzold, M.; Rauer, H.; Rouan, D.; Santerne, A.; Schneider, J.
Filiación:INAF-Osservatorio Astrofisico di Torino, via Osservatorio 20, Pino Torinese, 10025, Italy
Institut d'Astrophysique de Paris, CNRS, Sorbonne Universités, 98 bis bd Arago, Paris, 75014, France
Observatoire de Haute Provence, Université Aix-Marseille, CNRS, St. Michel l' Observatoire, 04870, France
Laboratoire d'Astrophysique de Bordeaux, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac, 33615, France
Observatoire de l'Université de Genève, 51 chemin des Maillettes, Sauverny, 1290, Switzerland
Department of Physics, Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH, United Kingdom
Instituto de Astrofisica de Canarias, La Laguna, Tenerife, 38205, Spain
Universidad de La Laguna, Dept. de Astrofísica, La Laguna, Tenerife, 38200, Spain
Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, Berlin, 12489, Germany
Institut d'Astrophysique Spatiale, UMR 8617, CNRS - Université de Paris-Sud, Bât. 121, Orsay, 91405, France
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, Marseille, 13388, France
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina
CONICET - Universidad de Buenos Aires, Instituto de Astronomía y Física del Espacio (IAFE), Buenos Aires, Argentina
Leiden Observatory, University of Leiden, PO Box 9513, Leiden, 2300 RA, Netherlands
Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, Onsala, 439 92, Sweden
Dipartimento di Fisica, Università di Torino, via P. Giuria 1, Torino, 10125, Italy
Thüringer Landessternwarte, Sternwarte 5, Tautenburg 5, Tautenburg, 07778, Germany
Observatoire de la Côte d'Azur, Laboratoire Cassiopée, BP 4229, Nice Cedex 4, 06304, France
UNESP, Univ. Estadual Paulista, Grupo de Dinâmica Orbital and Planetologia, Guaratinguetá, CEP 12, São Paulo, 516-410, Brazil
CNRS, CFHT Corporation, 65-1238 Mamalahoa Hwy, Kamuela, HI 96743, United States
LESIA, Obs. de Paris, Place J. Janssen, Meudon Cedex, 92195, France
Rheinisches Institut für Umweltforschung, Universität zu Köln, Aachener Strasse 209, Köln, 50931, Germany
Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, Berlin, 10623, Germany
LUTH, Observatoire de Paris, Université Paris Diderot, 5 place Jules Janssen, Meudon, 92195, France
Palabras clave:Planetary systems; Stars: Individual: CoRoT-9; Techniques: Photometric; Techniques: Radial velocities; Planets; Giant planets; Planetary system; Protoplanetary disks; Radial velocity; Stars: individual; Techniques: photometric; Techniques: radial velocities; Zero eccentricity; Orbits
Año:2017
Volumen:603
DOI: http://dx.doi.org/10.1051/0004-6361/201730624
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00046361_v603_n_p_Bonomo

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Citas:

---------- APA ----------
Bonomo, A.S., Hébrard, G., Raymond, S.N., Bouchy, F., Lecavelier Des Etangs, A., Bordé, P., Aigrain, S.,..., Schneider, J. (2017) . A deeper view of the CoRoT-9 planetary system: A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering. Astronomy and Astrophysics, 603.
http://dx.doi.org/10.1051/0004-6361/201730624
---------- CHICAGO ----------
Bonomo, A.S., Hébrard, G., Raymond, S.N., Bouchy, F., Lecavelier Des Etangs, A., Bordé, P., et al. "A deeper view of the CoRoT-9 planetary system: A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering" . Astronomy and Astrophysics 603 (2017).
http://dx.doi.org/10.1051/0004-6361/201730624
---------- MLA ----------
Bonomo, A.S., Hébrard, G., Raymond, S.N., Bouchy, F., Lecavelier Des Etangs, A., Bordé, P., et al. "A deeper view of the CoRoT-9 planetary system: A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering" . Astronomy and Astrophysics, vol. 603, 2017.
http://dx.doi.org/10.1051/0004-6361/201730624
---------- VANCOUVER ----------
Bonomo, A.S., Hébrard, G., Raymond, S.N., Bouchy, F., Lecavelier Des Etangs, A., Bordé, P., et al. A deeper view of the CoRoT-9 planetary system: A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering. Astron. Astrophys. 2017;603.
http://dx.doi.org/10.1051/0004-6361/201730624