A giant exoplanet orbiting a very-low-mass star challenges planet formation models

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.; Béjar, V. J. S.; González-Cuesta, L.; Luque, R.; Pallé, E.; Perger, M.; Baroch, D.; Johansen, A.; Klahr, H.; Mordasini, C.; Anglada-Escudé, G.; Caballero, J. A.; Cortés-Contreras, M.; Dreizler, S.; Lafarga, M.; Nagel, E.; Passegger, V. M.; Reffert, S.; Rosich, A.; Schweitzer, A.; Tal-Or, L.; Trifonov, T.; Zechmeister, M.; Quirrenbach, A.; Amado, P. J.; Guenther, E. W.; Hagen, H.-J.; Henning, T.; Jeffers, S. V.; Kaminski, A.; Kürster, M.; Montes, D.; Seifert, W.; Abellán, F. J.; Abril, M.; Aceituno, J.; Aceituno, F. J.; Alonso-Floriano, F. J.; Ammler-Von Eiff, M.; Antona, R.; Arroyo-Torres, B.; Azzaro, M.; Barrado, D.; Becerril-Jarque, S.; Benítez, D.; Berdiñas, Z. M.; Bergond, G.; Brinkmöller, M.; del Burgo, C.; Burn, R.; Calvo-Ortega, R.; Cano, J.; Cárdenas, M. C.; Guillén, C. Cardona; Carro, J.; Casal, E.; Casanova, V.; Casasayas-Barris, N.; Chaturvedi, P.; Cifuentes, C.; Claret, A.; Colomé, J.; Czesla, S.; Díez-Alonso, E.; Dorda, R.; Emsenhuber, A.; Fernández, M.; Fernández-Martín, A.; Ferro, I. M.; Fuhrmeister, B.; Galadí-Enríquez, D.; Cava, I. Gallardo; Vargas, M. L. García; Garcia-Piquer, A.; Gesa, L.; González-Álvarez, E.; Hernández, J. I. González; González-Peinado, R.; Guàrdia, J.; Guijarro, A.; de Guindos, E.; Hatzes, A. P.; Hauschildt, P. H.; Hedrosa, R. P.; Hermelo, I.; Arabi, R. Hernández; Otero, F. Hernández; Hintz, D.; Holgado, G.; Huber, A.; Huke, P.; Johnson, E. N.; de Juan, E.; Kehr, M.; Kemmer, J.; Kim, M.; Klüter, J.; Klutsch, A.; Labarga, F.; Labiche, N.; Lalitha, S.; Lampón, M.; Lara, L. M.; Launhardt, R.; Lázaro, F. J.; Lizon, J.-L.; Llamas, M.; Lodieu, N.; López del Fresno, M.; Salas, J. F. López; López-Santiago, J.; Madinabeitia, H. Magán; Mall, U.; Mancini, L.; Mandel, H.; Marfil, E.; Molina, J. A. Marín; Martín, E. L.; Martín-Fernández, P.; Martín-Ruiz, S.; Martínez-Rodríguez, H.; Marvin, C. J.; Mirabet, E.; Moya, A.; Naranjo, V.; Nelson, R. P.; Nortmann, L.; Nowak, G.; Ofir, A.; Pascual, J.; Pavlov, A.; Pedraz, S.; Medialdea, D. Pérez; Pérez-Calpena, A.; Perryman, M. A. C.; Rabaza, O.; Ballesta, A. Ramón; Rebolo, R.; Redondo, P.; Rix, H.-W.; Rodler, F.; Trinidad, A. Rodríguez; Sabotta, S.; Sadegi, S.; Salz, M.; Sánchez-Blanco, E.; Carrasco, M. A. Sánchez; Sánchez-López, A.; Sanz-Forcada, J.; Sarkis, P.; Sarmiento, L. F.; Schäfer, S.; Schlecker, M.; Schmitt, J. H. M. M.; Schöfer, P.; Solano, E.; Sota, A.; Stahl, O.; Stock, S.; Stuber, T.; 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.; Yan, F.; Osorio, M. R. Zapatero

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American Association for the Advancement of Science, Science, 6460(365), p. 1441-1445, 2019

DOI: 10.1126/science.aax3198

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A giant exoplanet orbiting a very-low-mass star challenges planet formation models

Journal article published in 2019 by J. C. Morales

, A. J. Mustill

, I. Ribas

, M. B. Davies

, A. Reiners, F. F. Bauer

, D. Kossakowski, E. Herrero

, E. Rodríguez

, M. J. López-González

, C. Rodríguez-López

, V. J. S. Béjar

, L. González-Cuesta

, R. Luque

, E. Pallé and other authors.

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Abstract

A small star hosts a big planet M dwarfs, the most common type of star, are low-mass objects that emit most of their faint light in the near-infrared, making it difficult to detect any orbiting exoplanets. Morales et al. have observed the nearby M dwarf GJ 3512 in the optical and near-infrared (see the Perspective by Laughlin). Periodic variations in the star's radial velocity show that it hosts a gas giant exoplanet on an eccentric orbit. The authors use simulations to show that such a large exoplanet around such a small star has implications for models of planet formation. Science , this issue p. 1441 ; see also p. 1382

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A giant exoplanet orbiting a very-low-mass star challenges planet formation models

Abstract