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The CARMENES search for exoplanets around M dwarfs: HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf

Authors :
Max Planck Society
Consejo Superior de Investigaciones Científicas (España)
European Commission
Ministerio de Economía y Competitividad (España)
Ministry of Science, Research and Art Baden-Württemberg
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
German Centre for Air and Space Travel
European Research Council
Ministerio de Ciencia, Innovación y Universidades (España)
Reiners, Ansgar
Ribas, Ignasi
Zechmeister, Mathias
Caballero, J. A.
Trifonov, T.
Dreizler, S.
Morales, Juan Carlos
Tal-Or, L.
Lafarga, M.
Quirrenbach, Andreas
Benítez, D.
Rabaza, O.
Ramón, A.
Reinhart, S.
Rodríguez Martínez, Eloy
Redondo, P.
Claret, A.
Rodríguez Trinidad, A.
Rosich, Albert
Sánchez-Blanco, E.
Sánchez Carrasco, Miguel Andrés
Solano, E.
Sánchez-López, A.
Sanz-Forcada, J.
Tabernero, H. M.
Suárez, J.C.
Cárdenas Vázquez, María Concepción
Vico Linares, J.I.
Kaminski, Adrian
Vilardell, Francesc
Zapatero Osorio, María Rosa
Jeffers, Sandra V.
Aceituno, Jesús
Béjar, Victor J. S.
Hagen, Hans-Jürgen
Guàrdia, J.
Guenther, E. W.
Passegger, V.M.
Montes, D.
Schweitzer, Andreas
Abril, Miguel
Seifert, W.
Cortés-Contreras, M.
Alonso-Floriano, F. Javier
Eiff, M.A.V.
Antona, R.
Anglada-Escudé, Guillem
Arroyo-Torres, B.
Anwand-Heerwart, H.
Rodríguez-López, Cristina
Baroch, David
Azzaro, M.
Bauer, Florian Franz
Barrado y Navascués, David
Berdiñas, Z. M.
Becerril, S.
Bergond, G.
Blümcke, M.
Brinkmöller, M.
Del Burgo, C.
Cifuentes, C.
Cano, J.
Casal, E.
Lara, Luisa María
Díez-Alonso, E.
Ferro, I.M.
Colomé, J.
Czesla, S.
Galadí-Enriquez, D.
García-Piquer, A.
Gesa, Lluis
López-Puertas, Manuel
Gómez Galera, V.
Guijarro, A.
González Hernández, Jonay I.
González-Peinado, R.
Fernández, M.
Helmling, J.
Gutiérrez-Soto, J.
de Guindos, E.
Martín-Ruiz, Susana
Hedrosa, R.P.
Hermelo, I.
Amado, Pedro J.
Hernández Arabí, R.
Hernández Castaño, L.
de Juan, E.
Hernández Hernando, F.
Herrero, E.
Labarga, F.
Klutsch, A.
López del Fresno, M.
Lampón, M.
López González, Maria J.
López Salas, J.F.
López-Santiago, J.
Magán Madinabeitia, H.
Marfil, E.
Marín Molina, J.A.
Miralda-Escudé, Jordi
Maroto Fernández, D.
Martín, Eduardo Lorenzo
Moreno-Raya, M.E.
Nortmann, L.
Nowak, G.
Moya, A.
Oreiro, Raquel
Pallé, Enric
Pascual, J.
Pedraz, S.
Pérez Medialdea, D.
Perger, M.
Rebolo López, Rafael
Max Planck Society
Consejo Superior de Investigaciones Científicas (España)
European Commission
Ministerio de Economía y Competitividad (España)
Ministry of Science, Research and Art Baden-Württemberg
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
German Centre for Air and Space Travel
European Research Council
Ministerio de Ciencia, Innovación y Universidades (España)
Reiners, Ansgar
Ribas, Ignasi
Zechmeister, Mathias
Caballero, J. A.
Trifonov, T.
Dreizler, S.
Morales, Juan Carlos
Tal-Or, L.
Lafarga, M.
Quirrenbach, Andreas
Benítez, D.
Rabaza, O.
Ramón, A.
Reinhart, S.
Rodríguez Martínez, Eloy
Redondo, P.
Claret, A.
Rodríguez Trinidad, A.
Rosich, Albert
Sánchez-Blanco, E.
Sánchez Carrasco, Miguel Andrés
Solano, E.
Sánchez-López, A.
Sanz-Forcada, J.
Tabernero, H. M.
Suárez, J.C.
Cárdenas Vázquez, María Concepción
Vico Linares, J.I.
Kaminski, Adrian
Vilardell, Francesc
Zapatero Osorio, María Rosa
Jeffers, Sandra V.
Aceituno, Jesús
Béjar, Victor J. S.
Hagen, Hans-Jürgen
Guàrdia, J.
Guenther, E. W.
Passegger, V.M.
Montes, D.
Schweitzer, Andreas
Abril, Miguel
Seifert, W.
Cortés-Contreras, M.
Alonso-Floriano, F. Javier
Eiff, M.A.V.
Antona, R.
Anglada-Escudé, Guillem
Arroyo-Torres, B.
Anwand-Heerwart, H.
Rodríguez-López, Cristina
Baroch, David
Azzaro, M.
Bauer, Florian Franz
Barrado y Navascués, David
Berdiñas, Z. M.
Becerril, S.
Bergond, G.
Blümcke, M.
Brinkmöller, M.
Del Burgo, C.
Cifuentes, C.
Cano, J.
Casal, E.
Lara, Luisa María
Díez-Alonso, E.
Ferro, I.M.
Colomé, J.
Czesla, S.
Galadí-Enriquez, D.
García-Piquer, A.
Gesa, Lluis
López-Puertas, Manuel
Gómez Galera, V.
Guijarro, A.
González Hernández, Jonay I.
González-Peinado, R.
Fernández, M.
Helmling, J.
Gutiérrez-Soto, J.
de Guindos, E.
Martín-Ruiz, Susana
Hedrosa, R.P.
Hermelo, I.
Amado, Pedro J.
Hernández Arabí, R.
Hernández Castaño, L.
de Juan, E.
Hernández Hernando, F.
Herrero, E.
Labarga, F.
Klutsch, A.
López del Fresno, M.
Lampón, M.
López González, Maria J.
López Salas, J.F.
López-Santiago, J.
Magán Madinabeitia, H.
Marfil, E.
Marín Molina, J.A.
Miralda-Escudé, Jordi
Maroto Fernández, D.
Martín, Eduardo Lorenzo
Moreno-Raya, M.E.
Nortmann, L.
Nowak, G.
Moya, A.
Oreiro, Raquel
Pallé, Enric
Pascual, J.
Pedraz, S.
Pérez Medialdea, D.
Perger, M.
Rebolo López, Rafael
Publication Year :
2018

Abstract

We report on the first star discovered to host a planet detected by radial velocity (RV) observations obtained within the CARMENES survey for exoplanets around M dwarfs. HD 147379 (V = 8.9 mag, M = 0.58 ± 0.08 M), a bright M0.0 V star at a distance of 10.7 pc, is found to undergo periodic RV variations with a semi-amplitude of K = 5.1 ± 0.4 m s and a period of P = 86.54 ± 0.06 d. The RV signal is found in our CARMENES data, which were taken between 2016 and 2017, and is supported by HIRES/Keck observations that were obtained since 2000. The RV variations are interpreted as resulting from a planet of minimum mass m sin i = 25 ± 2 M, 1.5 times the mass of Neptune, with an orbital semi-major axis a = 0.32 au and low eccentricity (e < 0.13). HD 147379 b is orbiting inside the temperate zone around the star, where water could exist in liquid form. The RV time-series and various spectroscopic indicators show additional hints of variations at an approximate period of 21.1 d (and its first harmonic), which we attribute to the rotation period of the star.© ESO, 2018.

Details

Database :
OAIster
Publication Type :
Electronic Resource
Accession number :
edsoai.on1286545204
Document Type :
Electronic Resource

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