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

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

doi:10.1126/science.aax3198

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

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

Producció científica: Article en revista indexada › Article › Avaluat per experts

94 Cites (Scopus)

Resum

Surveys have shown that super-Earth and Neptune-mass exoplanets aremore 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 Jupitermasses, 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 andmigration rates. Disk instabilities may be more efficient in forming planets than previously thought.

Idioma original	Anglès
Pàgines (de-a)	1441-1445
Nombre de pàgines	5
Revista	Science
Volum	365
Número	6460
DOIs	https://doi.org/10.1126/science.aax3198
Estat de la publicació	Publicada - 27 de set. 2019
Publicat externament	Sí

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10.1126/science.aax3198

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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., ... Zapatero Osorio, M. R. (2019). A giant exoplanet orbiting a very-low-mass star challenges planet formation models. Science, 365(6460), 1441-1445. https://doi.org/10.1126/science.aax3198

@article{c6982f429b7f45c4827ddb03edc7d2eb,

title = "A giant exoplanet orbiting a very-low-mass star challenges planet formation models",

abstract = "Surveys have shown that super-Earth and Neptune-mass exoplanets aremore 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 Jupitermasses, 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 andmigration rates. Disk instabilities may be more efficient in forming planets than previously thought.",

author = "Morales, {J. C.} and Mustill, {A. J.} and I. Ribas and Davies, {M. B.} and A. Reiners and Bauer, {F. F.} and D. Kossakowski and E. Herrero and E. Rodr{\'i}guez and L{\'o}pez-Gonz{\'a}lez, {M. J.} and C. Rodr{\'i}guez-L{\'o}pez and B{\'e}jar, {V. J.S.} and L. Gonz{\'a}lez-Cuesta and R. Luque and E. Pall{\'e} and M. Perger and D. Baroch and A. Johansen and H. Klahr and C. Mordasini and G. Anglada-Escud{\'e} and Caballero, {J. A.} and M. Cort{\'e}s-Contreras and S. Dreizler and M. Lafarga and E. Nagel and Passegger, {V. M.} and S. Reffert and A. Rosich and A. Schweitzer and L. Tal-Or and T. Trifonov and M. Zechmeister and A. Quirrenbach and Amado, {P. J.} and Guenther, {E. W.} and Hagen, {H. J.} and T. Henning and Jeffers, {S. V.} and A. Kaminski and M. K{\"u}rster and D. Montes and W. Seifert and Abell{\'a}n, {F. J.} and M. Abril and J. Aceituno and Aceituno, {F. J.} and Alonso-Floriano, {F. J.} and {Ammler-Von Eiff}, M. and R. Antona and B. Arroyo-Torres and M. Azzaro and D. Barrado and S. Becerril-Jarque and D. Ben{\'i}tez and Berdi{\~n}as, {Z. M.} and G. Bergond and M. Brinkm{\"o}ller and {del Burgo}, C. and R. Burn and R. Calvo-Ortega and J. Cano and C{\'a}rdenas, {M. C.} and {Cardona Guill{\'e}n}, C. and J. Carro and E. Casal and V. Casanova and N. Casasayas-Barris and P. Chaturvedi and C. Cifuentes and A. Claret and J. Colom{\'e} and S. Czesla and E. D{\'i}ez-Alonso and R. Dorda and A. Emsenhuber and M. Fern{\'a}ndez and A. Fern{\'a}ndez-Mart{\'i}n and Ferro, {I. M.} and B. Fuhrmeister and D. Galad{\'i}-Enr{\'i}quez and {Gallardo Cava}, I. and {Garc{\'i}a Vargas}, {M. L.} and A. Garcia-Piquer and L. Gesa and E. Gonz{\'a}lez-{\'A}lvarez and {Gonz{\'a}lez Hern{\'a}ndez}, {J. I.} and R. Gonz{\'a}lez-Peinado and J. Gu{\`a}rdia and A. Guijarro and {de Guindos}, E. and Hatzes, {A. P.} and Hauschildt, {P. H.} and Hedrosa, {R. P.} and I. Hermelo and {Hern{\'a}ndez Arabi}, R. and {Hern{\'a}ndez Otero}, F. and D. Hintz and G. Holgado and A. Huber and P. Huke and Johnson, {E. N.} and {de Juan}, E. and M. Kehr and J. Kemmer and M. Kim and J. Kl{\"u}ter and A. Klutsch and F. Labarga and N. Labiche and S. Lalitha and M. Lamp{\'o}n and Lara, {L. M.} and R. Launhardt and L{\'a}zaro, {F. J.} and Lizon, {J. L.} and M. Llamas and N. Lodieu and {L{\'o}pez del Fresno}, M. and {L{\'o}pez Salas}, {J. F.} and J. L{\'o}pez-Santiago and {Mag{\'a}n Madinabeitia}, H. and U. Mall and L. Mancini and H. Mandel and E. Marfil and {Mar{\'i}n Molina}, {J. A.} and Mart{\'i}n, {E. L.} and P. Mart{\'i}n-Fern{\'a}ndez and S. Mart{\'i}n-Ruiz and H. Mart{\'i}nez-Rodr{\'i}guez and Marvin, {C. J.} and E. Mirabet and A. Moya and V. Naranjo and Nelson, {R. P.} and L. Nortmann and G. Nowak and A. Ofir and J. Pascual and A. Pavlov and S. Pedraz and {P{\'e}rez Medialdea}, D. and A. P{\'e}rez-Calpena and Perryman, {M. A.C.} and O. Rabaza and {Ram{\'o}n Ballesta}, A. and R. Rebolo and P. Redondo and Rix, {H. W.} and F. Rodler and {Rodr{\'i}guez Trinidad}, A. and S. Sabotta and S. Sadegi and M. Salz and E. S{\'a}nchez-Blanco and {S{\'a}nchez Carrasco}, {M. A.} and A. S{\'a}nchez-L{\'o}pez and J. Sanz-Forcada and P. Sarkis and Sarmiento, {L. F.} and S. Sch{\"a}fer and M. Schlecker and Schmitt, {J. H.M.M.} and P. Sch{\"o}fer and E. Solano and A. Sota and O. Stahl and S. Stock and T. Stuber and J. St{\"u}rmer and Su{\'a}rez, {J. C.} and Tabernero, {H. M.} and Tulloch, {S. M.} and G. Veredas and Vico-Linares, {J. I.} and F. Vilardell and K. Wagner and J. Winkler and V. Wolthoff and F. Yan and {Zapatero Osorio}, {M. R.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 The Authors.",

year = "2019",

month = sep,

day = "27",

doi = "10.1126/science.aax3198",

language = "English",

volume = "365",

pages = "1441--1445",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6460",

}

Morales, JC, Mustill, AJ, Ribas, I, Davies, MB, Reiners, A, Bauer, FF, Kossakowski, D, Herrero, E, Rodríguez, E, López-González, MJ, Rodríguez-López, C, Béjar, VJS, González-Cuesta, L, Luque, R, Pallé, E, Perger, M, Baroch, D, Johansen, A, Klahr, H, Mordasini, C, Anglada-Escudé, G, Caballero, JA, Cortés-Contreras, M, Dreizler, S, Lafarga, M, Nagel, E, Passegger, VM, Reffert, S, Rosich, A, Schweitzer, A, Tal-Or, L, Trifonov, T, Zechmeister, M, Quirrenbach, A, Amado, PJ, Guenther, EW, Hagen, HJ, Henning, T, Jeffers, SV, Kaminski, A, Kürster, M, Montes, D, Seifert, W, Abellán, FJ, Abril, M, Aceituno, J, Aceituno, FJ, Alonso-Floriano, FJ, Ammler-Von Eiff, M, Antona, R, Arroyo-Torres, B, Azzaro, M, Barrado, D, Becerril-Jarque, S, Benítez, D, Berdiñas, ZM, Bergond, G, Brinkmöller, M, del Burgo, C, Burn, R, Calvo-Ortega, R, Cano, J, Cárdenas, MC, Cardona Guillén, C, 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, IM, Fuhrmeister, B, Galadí-Enríquez, D, Gallardo Cava, I, García Vargas, ML, Garcia-Piquer, A, Gesa, L, González-Álvarez, E, González Hernández, JI, González-Peinado, R, Guàrdia, J, Guijarro, A, de Guindos, E, Hatzes, AP, Hauschildt, PH, Hedrosa, RP, Hermelo, I, Hernández Arabi, R, Hernández Otero, F, Hintz, D, Holgado, G, Huber, A, Huke, P, Johnson, EN, de Juan, E, Kehr, M, Kemmer, J, Kim, M, Klüter, J, Klutsch, A, Labarga, F, Labiche, N, Lalitha, S, Lampón, M, Lara, LM, Launhardt, R, Lázaro, FJ, Lizon, JL, Llamas, M, Lodieu, N, López del Fresno, M, López Salas, JF, López-Santiago, J, Magán Madinabeitia, H, Mall, U, Mancini, L, Mandel, H, Marfil, E, Marín Molina, JA, Martín, EL, Martín-Fernández, P, Martín-Ruiz, S, Martínez-Rodríguez, H, Marvin, CJ, Mirabet, E, Moya, A, Naranjo, V, Nelson, RP, Nortmann, L, Nowak, G, Ofir, A, Pascual, J, Pavlov, A, Pedraz, S, Pérez Medialdea, D, Pérez-Calpena, A, Perryman, MAC, Rabaza, O, Ramón Ballesta, A, Rebolo, R, Redondo, P, Rix, HW, Rodler, F, Rodríguez Trinidad, A, Sabotta, S, Sadegi, S, Salz, M, Sánchez-Blanco, E, Sánchez Carrasco, MA, Sánchez-López, A, Sanz-Forcada, J, Sarkis, P, Sarmiento, LF, Schäfer, S, Schlecker, M, Schmitt, JHMM, Schöfer, P, Solano, E, Sota, A, Stahl, O, Stock, S, Stuber, T, Stürmer, J, Suárez, JC, Tabernero, HM, Tulloch, SM, Veredas, G, Vico-Linares, JI, Vilardell, F, Wagner, K, Winkler, J, Wolthoff, V, Yan, F & Zapatero Osorio, MR 2019, 'A giant exoplanet orbiting a very-low-mass star challenges planet formation models', Science, vol. 365, núm. 6460, pàg. 1441-1445. https://doi.org/10.1126/science.aax3198

TY - JOUR

T1 - A giant exoplanet orbiting a very-low-mass star challenges planet formation models

AU - Morales, J. C.

AU - Mustill, A. J.

AU - Ribas, I.

AU - Davies, M. B.

AU - Reiners, A.

AU - Bauer, F. F.

AU - Kossakowski, D.

AU - Herrero, E.

AU - Rodríguez, E.

AU - López-González, M. J.

AU - Rodríguez-López, C.

AU - Béjar, V. J.S.

AU - González-Cuesta, L.

AU - Luque, R.

AU - Pallé, E.

AU - Perger, M.

AU - Baroch, D.

AU - Johansen, A.

AU - Klahr, H.

AU - Mordasini, C.

AU - Anglada-Escudé, G.

AU - Caballero, J. A.

AU - Cortés-Contreras, M.

AU - Dreizler, S.

AU - Lafarga, M.

AU - Nagel, E.

AU - Passegger, V. M.

AU - Reffert, S.

AU - Rosich, A.

AU - Schweitzer, A.

AU - Tal-Or, L.

AU - Trifonov, T.

AU - Zechmeister, M.

AU - Quirrenbach, A.

AU - Amado, P. J.

AU - Guenther, E. W.

AU - Hagen, H. J.

AU - Henning, T.

AU - Jeffers, S. V.

AU - Kaminski, A.

AU - Kürster, M.

AU - Montes, D.

AU - Seifert, W.

AU - Abellán, F. J.

AU - Abril, M.

AU - Aceituno, J.

AU - Aceituno, F. J.

AU - Alonso-Floriano, F. J.

AU - Ammler-Von Eiff, M.

AU - Antona, R.

AU - Arroyo-Torres, B.

AU - Azzaro, M.

AU - Barrado, D.

AU - Becerril-Jarque, S.

AU - Benítez, D.

AU - Berdiñas, Z. M.

AU - Bergond, G.

AU - Brinkmöller, M.

AU - del Burgo, C.

AU - Burn, R.

AU - Calvo-Ortega, R.

AU - Cano, J.

AU - Cárdenas, M. C.

AU - Cardona Guillén, C.

AU - Carro, J.

AU - Casal, E.

AU - Casanova, V.

AU - Casasayas-Barris, N.

AU - Chaturvedi, P.

AU - Cifuentes, C.

AU - Claret, A.

AU - Colomé, J.

AU - Czesla, S.

AU - Díez-Alonso, E.

AU - Dorda, R.

AU - Emsenhuber, A.

AU - Fernández, M.

AU - Fernández-Martín, A.

AU - Ferro, I. M.

AU - Fuhrmeister, B.

AU - Galadí-Enríquez, D.

AU - Gallardo Cava, I.

AU - García Vargas, M. L.

AU - Garcia-Piquer, A.

AU - Gesa, L.

AU - González-Álvarez, E.

AU - González Hernández, J. I.

AU - González-Peinado, R.

AU - Guàrdia, J.

AU - Guijarro, A.

AU - de Guindos, E.

AU - Hatzes, A. P.

AU - Hauschildt, P. H.

AU - Hedrosa, R. P.

AU - Hermelo, I.

AU - Hernández Arabi, R.

AU - Hernández Otero, F.

AU - Hintz, D.

AU - Holgado, G.

AU - Huber, A.

AU - Huke, P.

AU - Johnson, E. N.

AU - de Juan, E.

AU - Kehr, M.

AU - Kemmer, J.

AU - Kim, M.

AU - Klüter, J.

AU - Klutsch, A.

AU - Labarga, F.

AU - Labiche, N.

AU - Lalitha, S.

AU - Lampón, M.

AU - Lara, L. M.

AU - Launhardt, R.

AU - Lázaro, F. J.

AU - Lizon, J. L.

AU - Llamas, M.

AU - Lodieu, N.

AU - López del Fresno, M.

AU - López Salas, J. F.

AU - López-Santiago, J.

AU - Magán Madinabeitia, H.

AU - Mall, U.

AU - Mancini, L.

AU - Mandel, H.

AU - Marfil, E.

AU - Marín Molina, J. A.

AU - Martín, E. L.

AU - Martín-Fernández, P.

AU - Martín-Ruiz, S.

AU - Martínez-Rodríguez, H.

AU - Marvin, C. J.

AU - Mirabet, E.

AU - Moya, A.

AU - Naranjo, V.

AU - Nelson, R. P.

AU - Nortmann, L.

AU - Nowak, G.

AU - Ofir, A.

AU - Pascual, J.

AU - Pavlov, A.

AU - Pedraz, S.

AU - Pérez Medialdea, D.

AU - Pérez-Calpena, A.

AU - Perryman, M. A.C.

AU - Rabaza, O.

AU - Ramón Ballesta, A.

AU - Rebolo, R.

AU - Redondo, P.

AU - Rix, H. W.

AU - Rodler, F.

AU - Rodríguez Trinidad, A.

AU - Sabotta, S.

AU - Sadegi, S.

AU - Salz, M.

AU - Sánchez-Blanco, E.

AU - Sánchez Carrasco, M. A.

AU - Sánchez-López, A.

AU - Sanz-Forcada, J.

AU - Sarkis, P.

AU - Sarmiento, L. F.

AU - Schäfer, S.

AU - Schlecker, M.

AU - Schmitt, J. H.M.M.

AU - Schöfer, P.

AU - Solano, E.

AU - Sota, A.

AU - Stahl, O.

AU - Stock, S.

AU - Stuber, T.

AU - Stürmer, J.

AU - Suárez, J. C.

AU - Tabernero, H. M.

AU - Tulloch, S. M.

AU - Veredas, G.

AU - Vico-Linares, J. I.

AU - Vilardell, F.

AU - Wagner, K.

AU - Winkler, J.

AU - Wolthoff, V.

AU - Yan, F.

AU - Zapatero Osorio, M. R.

PY - 2019/9/27

Y1 - 2019/9/27

N2 - Surveys have shown that super-Earth and Neptune-mass exoplanets aremore 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 Jupitermasses, 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 andmigration rates. Disk instabilities may be more efficient in forming planets than previously thought.

AB - Surveys have shown that super-Earth and Neptune-mass exoplanets aremore 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 Jupitermasses, 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 andmigration rates. Disk instabilities may be more efficient in forming planets than previously thought.

UR - http://www.scopus.com/inward/record.url?scp=85072701169&partnerID=8YFLogxK

U2 - 10.1126/science.aax3198

DO - 10.1126/science.aax3198

M3 - Article

C2 - 31604272

AN - SCOPUS:85072701169

SN - 0036-8075

VL - 365

SP - 1441

EP - 1445

JO - Science

JF - Science

IS - 6460

ER -

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

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