| Title: | A giant exoplanet orbiting a very-low-mass star challenges planet formation models |
| Authors: | Morales, J. C.
Mustill, A. J.
Ribas, I.
Davies, M. B.
Reiners, A.
Bauer, F. F.
Kossakowski, D.
Herrero, E.
Rodríguez, E.
López González, M. J.
Rodríguez López, C.
Trifonov, T.
Labarga, F.
Abellán, F. J.
Klutsch, A.
Burn, R.
Redondo, P.
Aceituno, Francisco José
Alonso Floriano, F. J.
Lázaro, F. J.
De Juan, E.
Launhardt, R.
Cárdenas, M. C.
Rodler, F.
Arroyo Torres, B.
Azzaro, M.
González Cuesta, L.
Labiche, N.
Casal, E.
Sabotta, S.
Benítez, D.
Berdiñas, Z. M.
Mordasini, C.
Lizon, J. L.
Kemmer, J.
Salz, M.
Kehr, M.
Del Burgo, C.
López Santiago, J.
Lalitha, S.
Sánchez Carrasco, M. A.
Béjar, V. J. S.
Cano, J.
Marfil, E.
Llamas, M.
Sanz Forcada, J.
Zapatero Osorio, M. R.
Carro, J.
Magán Madinabeitia, H.
Baroch, D.
Yan, F.
Casasayas Barris, N.
Marín Molina, J. A.
Dreizler, S.
Klahr, H.
Cifuentes, C.
Martínez Rodriguez, H.
Schweitzer, A.
Colomé, J.
Naranjo, V.
Guenther, E. W.
Díez Alonso, E.
Ofir, A.
Kürster, M.
Emsenhuber, A.
Pedraz, S.
Aceituno, J.
Fernández Martín, A.
Antona, R.
Ferro, I. M.
Becerril Jarque, S.
Fuhrmeister, B.
Brinkmöller, M.
Galadí Enríquez, D.
Calvo Ortega, R.
Gallardo Cava, I.
Cardona Guillén, C.
García Vargas, M. L.
García Piquer, A.
Gesa, L.
González Álvarez, E.
González Hernández, J. I.
González Peinado, R.
Klüter, J.
Lara, L. M.
López del Fresno, M.
Mancini, L.
Martín Fernández, P.
Stürmer, J.
Suárez, J. C.
Tabernero, H. M.
Tulloch, S. M.
Veredas, G.
Vico Linares, J. I.
Vilardell, F.
Wagner, K.
Winkler, J.
Wolthoff, V.
Martín Ruiz, S.
Mandel, H.
López Salas, F. J.
Passegger, V. M.
Luque, R.
Nagel, E.
Perryman, M. A. C.
Casanova, V.
Mirabet, E.
Moya, A.
Zechmeister, M.
Anglada Escudé, G.
Rebolo, R.
Chaturvedi, P.
Nortmann, L.
Nowak, G.
Johnson, E. N.
Reffert, S.
Perger, M.
Claret, A.
Pallé, E.
Pavlov, A.
Quirrenbach, A.
Cortés Contreras, M.
Czesla, S.
Caballero, J. A.
Pérez Calpena, A.
Jeffers, S. V.
Rosich, A.
Dorda, R.
Huke, P.
Ramón Ballesta, A.
Amado, P. J.
Fernández Hernández, Maite
Huber, A.
Rix, H. W.
Kaminski, A.
Kim, M.
Holgado, G.
Rodríguez Trinidad, A.
Abril, M.
Lampón, M.
Sadegi, S.
Ammler von Eiff, M.
Lodieu, N.
Sánchez Blanco, E.
Barrado, D.
Mall, U.
Sánchez López, A.
Bergond, G.
Martín, E. L.
Sarkis, P.
Marvin, E. L.
Sarmiento, L. F.
Nelson, R. P.
Schäfer, S.
Pascual, J.
Schlecker, M.
Pérez Medialdea, D.
Schmitt, J. H. M. M.
Rabaza, O.
Schöfer, P.
Solano, E.
Sota, A.
Stahl, O.
Stock, S.
Stuber, T.
Johansen, A.
Lafarga, M.
Tal Or, L.
Hagen, H. J.
Montes, D.
Guàrdia, J.
Guijarro, A.
De Guindos, E.
Hatzes, A. P.
Hauschildt, P. H.
Hedrosa, R. P.
Hermelo, I.
Hernández Arabi, R.
Hernández Otero, F.
Hintz, D.
Seifert, W.
Henning, T. |
| Issue Date: | 27-Sep-2019 |
| Publisher: | American Association for the Advancement of Science |
| DOI: | 10.1126/science.aax3198 |
| Published version: | https://science.sciencemag.org/content/365/6460/1441 |
| Citation: | Science 365(6460): 1441-1445(2019) |
| Abstract: | Surveys have shown that super-Earth and Neptune-mass exoplanets are more frequent than gas giants around low-mass stars, as predicted by the core accretion theory of planet formation. We report the discovery of a giant planet around the very-low-mass star GJ 3512, as determined by optical and near-infrared radial-velocity observations. The planet has a minimum mass of 0.46 Jupiter masses, very high for such a small host star, and an eccentric 204-day orbit. Dynamical models show that the high eccentricity is most likely due to planet-planet interactions. We use simulations to demonstrate that the GJ 3512 planetary system challenges generally accepted formation theories, and that it puts constraints on the planet accretion and migration rates. Disk instabilities may be more efficient in forming planets than previously thought.Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science |
| URI: | http://hdl.handle.net/20.500.12666/421 |
| ISSN: | 1095-9203 |
| Appears in Collections: | (CAB) Artículos
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