Abstract:
Whereas thousands of transiting giant exoplanets are known today, only a few are well characterized with long orbital periods. Here we present KOI-3680b, a new planet in this category. First identified by the Kepler team as a promising candidate from the photometry of the Kepler spacecraft, we establish here its planetary nature from the radial velocity follow-up secured over 2 yr with the SOPHIE spectrograph at Observatoire de Haute-Provence, France. The combined analysis of the whole dataset allows us to fully characterize this new planetary system. KOI-3680b has an orbital period of 141.2417 ± 0.0001 days, a mass of 1.93 ± 0.20 M Jup , and a radius of 0.99 ± 0.07 R Jup . It exhibits a highly eccentric orbit (e = 0.50 ± 0.03) around an early G dwarf. KOI-3680b is the transiting giant planet with the longest period characterized so far around a single star; it offers opportunities to extend studies which were mainly devoted to exoplanets close to their host stars, and to compare both exoplanet populations. © 2019 ESO.
Registro:
Documento: |
Artículo
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Título: | SOPHIE velocimetry of Kepler transit candidates: XIX. the transiting temperate giant planet KOI-3680b |
Autor: | Hébrard, G.; Bonomo, A.S.; Díaz, R.F.; Santerne, A.; Santos, N.C.; Almenara, J.-M.; Barros, S.C.C.; Boisse, I.; Bouchy, F.; Bruno, G.; Courcol, B.; Deleuil, M.; Demangeon, O.; Guillot, T.; Montagnier, G.; Moutou, C.; Rey, J.; Wilson, P.A. |
Filiación: | Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre and Marie Curie, 98bis Boulevard Arago, Paris, 75014, France Observatoire de Haute-Provence, CNRS, Université d'Aix-Marseille, Saint-Michel-l'Observatoire, 04870, France INAF, Osservatorio Astrofisico di Torino, Via Osservatorio 20, Pino Torinese, 10025, Italy CONICET, Instituto de Astronomía y Física Del Espacio (IAFE), Universidad de Buenos Aires, Buenos Aires, Argentina CNRS, CNES, Laboratoire d'Astrophysique de Marseille, Aix Marseille Université, Marseille, 13388, France Instituto de Astrofísica e Ciências Do Espaço, Universidade Do Porto, CAUP, Rua das Estrelas, Porto, 4150-762, Portugal Departamento de Física e Astronomia, Faculdade de Ciências, Universidade Do Porto, Rua Campo Alegre, Porto, 4169-007, Portugal Université Grenoble Alpes, CNRS, IPAG, Grenoble, 38000, France Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, Sauverny, 1290, Switzerland INAF, Osservatorio Astrofisico di Catania, Via S. Sofia, 78, Catania, 95123, Italy Université Côte d'Azur, OCA, Lagrange CNRS, Nice, 06304, France Canada France Hawaii Telescope Corporation, Kamuela, HI 96743, United States Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
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Palabras clave: | Planetary systems; Stars: individual: KOI-3680; Techniques: photometric; Techniques: radial velocities; Techniques: spectroscopic; Extrasolar planets; Photometry; Stars; Planetary system; Stars: individual; Techniques: photometric; Techniques: radial velocities; Techniques: spectroscopic; Orbits |
Año: | 2019
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Volumen: | 623
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DOI: |
http://dx.doi.org/10.1051/0004-6361/201834333 |
Título revista: | Astronomy and Astrophysics
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Título revista abreviado: | Astron. Astrophys.
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ISSN: | 00046361
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CODEN: | AAEJA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v623_n_p_Hebrard |
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Citas:
---------- APA ----------
Hébrard, G., Bonomo, A.S., Díaz, R.F., Santerne, A., Santos, N.C., Almenara, J.-M., Barros, S.C.C.,..., Wilson, P.A.
(2019)
. SOPHIE velocimetry of Kepler transit candidates: XIX. the transiting temperate giant planet KOI-3680b. Astronomy and Astrophysics, 623.
http://dx.doi.org/10.1051/0004-6361/201834333---------- CHICAGO ----------
Hébrard, G., Bonomo, A.S., Díaz, R.F., Santerne, A., Santos, N.C., Almenara, J.-M., et al.
"SOPHIE velocimetry of Kepler transit candidates: XIX. the transiting temperate giant planet KOI-3680b"
. Astronomy and Astrophysics 623
(2019).
http://dx.doi.org/10.1051/0004-6361/201834333---------- MLA ----------
Hébrard, G., Bonomo, A.S., Díaz, R.F., Santerne, A., Santos, N.C., Almenara, J.-M., et al.
"SOPHIE velocimetry of Kepler transit candidates: XIX. the transiting temperate giant planet KOI-3680b"
. Astronomy and Astrophysics, vol. 623, 2019.
http://dx.doi.org/10.1051/0004-6361/201834333---------- VANCOUVER ----------
Hébrard, G., Bonomo, A.S., Díaz, R.F., Santerne, A., Santos, N.C., Almenara, J.-M., et al. SOPHIE velocimetry of Kepler transit candidates: XIX. the transiting temperate giant planet KOI-3680b. Astron. Astrophys. 2019;623.
http://dx.doi.org/10.1051/0004-6361/201834333