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Reiners, A. ;
Ribas, I. ;
Zechmeister, M. ;
Caballero, J. A. ;
Trifonov, T. ;
Dreizler, S. ;
Morales, J. C. ;
Tal-Or, L. ;
Lafarga, M. ;
Quirrenbach, A. ;
Amado, P. J. ;
Kaminski, A. ;
Jeffers, S. V. ;
Aceituno, J. ;
Béjar, V. J. S. ;
Guàrdia, J. ;
Guenther, E. W. ;
Hagen, H.-J. ;
Montes, D. ;
Passegger, V. M. ;
Seifert, W. ;
Schweitzer, A. ;
Cortés-Contreras, M. ;
Abril, M. ;
[...]
The CARMENES search for exoplanets around M dwarfs : HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf
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- Media type: E-Article
- Title: The CARMENES search for exoplanets around M dwarfs : HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf : HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf
- Contributor: Reiners, A. ; Ribas, I. ; Zechmeister, M. ; Caballero, J. A. ; Trifonov, T. ; Dreizler, S. ; Morales, J. C. ; Tal-Or, L. ; Lafarga, M. ; Quirrenbach, A. ; Amado, P. J. ; Kaminski, A. ; Jeffers, S. V. ; Aceituno, J. ; Béjar, V. J. S. ; Guàrdia, J. ; Guenther, E. W. ; Hagen, H.-J. ; Montes, D. ; Passegger, V. M. ; Seifert, W. ; Schweitzer, A. ; Cortés-Contreras, M. ; Abril, M. ; Alonso-Floriano, F. J. ; Ammler-von Eiff, M. ; Antona, R. ; Anglada-Escudé, G. ; Anwand-Heerwart, H. ; Arroyo-Torres, B. ; Azzaro, M. ; Baroch, D. ; Barrado, D. ; Bauer, F. F. ; Becerril, S. ; Benítez, D. ; Berdiñas, Z. M. ; Bergond, G. ; Blümcke, M. ; Brinkmöller, M. ; del Burgo, C. ; Cano, J. ; Cárdenas Vázquez, M. C. ; Casal, E. ; Cifuentes, C. ; Claret, A. ; Colomé, J. ; Czesla, S. ; Díez-Alonso, E. ; Feiz, C. ; Fernández, M. ; Ferro, I. M. ; Fuhrmeister, B. ; Galadí-Enríquez, D. ; Garcia-Piquer, A. ; García Vargas, M. L. ; Gesa, L. ; Gómez Galera, V. ; González Hernández, J. I. ; González-Peinado, R. ; Grözinger, U. ; Grohnert, S. ; Guijarro, A. ; de Guindos, E. ; Gutiérrez-Soto, J. ; Hatzes, A. P. ; Hauschildt, P. H. ; Hedrosa, R. P. ; Helmling, J. ; Henning, Th. ; Hermelo, I. ; Hernández Arabí, R. ; Hernández Castaño, L. ; Hernández Hernando, F. ; Herrero, E. ; Huber, A. ; Huke, P. ; Johnson, E. N. ; de Juan, E. ; Kim, M. ; Klein, R. ; Klüter, J. ; Klutsch, A. ; Kürster, M. ; Labarga, F. ; Lamert, A. ; Lampón, M. ; Lara, L. M. ; Laun, W. ; Lemke, U. ; Lenzen, R. ; Launhardt, R. ; López del Fresno, M. ; López-González, M. J. ; López-Puertas, M. ; López Salas, J. F. ; López-Santiago, J. ; Luque, R. ; Magán Madinabeitia, H. ; Mall, U. ; Mancini, L. ; Mandel, H. ; Marfil, E. ; Marín Molina, J. A. ; Maroto Fernández, D. ; Martín, E. L. ; Martín-Ruiz, S. ; Marvin, C. J. ; Mathar, R. J. ; Mirabet, E. ; Moreno-Raya, M. E. ; Moya, A. ; Mundt, R. ; Nagel, E. ; Naranjo, V. ; Nortmann, L. ; Nowak, G. ; Ofir, A. ; Oreiro, R. ; Pallé, E. ; Panduro, J. ; Pascual, J. ; Pavlov, A. ; Pedraz, S. ; Pérez-Calpena, A. ; Pérez Medialdea, D. ; Perger, M. ; Perryman, M. A. C. ; Pluto, M. ; Rabaza, O. ; Ramón, A. ; Rebolo, R. ; Redondo, P. ; Reffert, S. ; Reinhart, S. ; Rhode, P. ; Rix, H.-W. ; Rodler, F. ; Rodríguez, E. ; Rodríguez-López, C. ; Rodríguez Trinidad, A. ; Rohloff, R.-R. ; Rosich, A. ; Sadegi, S. ; Sánchez-Blanco, E. ; Sánchez Carrasco, M. A. ; Sánchez-López, A. ; Sanz-Forcada, J. ; Sarkis, P. ; Sarmiento, L. F. ; Schäfer, S. ; Schmitt, J. H. M. M. ; Schiller, J. ; Schöfer, P. ; Solano, E. ; Stahl, O. ; Strachan, J. B. P. ; Stürmer, J. ; Suárez, J. C. ; Tabernero, H. M. ; Tala, M. ; Tulloch, S. M. ; Ulbrich, R.-G. ; Veredas, G. ; Vico Linares, J. I. ; Vilardell, F. ; Wagner, K. ; Winkler, J. ; Wolthoff, V. ; Xu, W. ; Yan, F. ; Zapatero Osorio, M. R.
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Published:
EDP Sciences, 2018
- Published in: Astronomy & Astrophysics, 609 (2018), Seite L5
- Language: Without Specification
- DOI: 10.1051/0004-6361/201732165
- ISSN: 0004-6361; 1432-0746
- Origination:
- Footnote:
- Description: 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−1 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 mP 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.
- Access State: Open Access