Accès ouvert déclaré
2017
article
The CARMENES search for exoplanets around M dwarfs
Trifon Trifonov, M. Kürster, M. Zechmeister, L. Tal-Or, J. A. Caballero, A. Quirrenbach, P. J. Amado, I. Ribas, A. Reiners, S. Reffert, S. Dreizler, A. P. Hatzes, A. Kaminski, R. Launhardt, Th. Henning, D. Montes, V. J. S. Béjar, R. Mundt, A. Pavlov, J. H. M. M. Schmitt, W. Seifert, J. C. Morales, G. Nowak, S. V. Jeffers, C. López, C. del Burgo, G. Anglada‐Escudé, J. López‐Santiago, Richard J. Mathar, M. Ammler‐von Eiff, E. W. Guenther, D. Barrado, J. I. Gónzalez Hernández, L. Mancini, Julian Stürmer, Miguel Abril, J. Aceituno, F. J. Alonso-Floriano, R. Antona, H. Anwand-Heerwart, B. Arroyo-Torres, M. Azzaro, D. Baroch, F. F. Bauer, S. Becerril, D. Benítez, Z. M. Berdinas̃, G. Bergond, M. Blümcke, M. Brinkmöller, J. Cano, M. Vázquez, E. Casal, C. Cifuentes, A. Claret, J. Colomé, M. Cortés‐Contreras, S. Czesla, E. Díez-Alonso, C. Feiz, M. Fernández, I. M. Ferro, B. Fuhrmeister, D. Galadí-Enríquez, Á. García-Piquer, M. L. García-Vargas, L. Gesa, V. Gómez Galera, R. González-Peinado, U. Grözinger, S. Grohnert, J. Guàrdia, A. Guijarro, E. de Guindos, J. Gutiérrez–Soto, H.-J. Hagen, P. H. Hauschildt, R. P. Hedrosa, J. Helmling, I. Hermelo, R. Hernández Arabí, L. Hernández Castaño, F. Hernández Hernando, E. Herrero, A. Huber, P. Huke, E. N. Johnson, E. de Juan, M. Kim, R. Klein, J. Klüter, A. Klutsch, M. Lafarga, M. Lampón, L. M. Lara, W. Laun, Ulrike Lemke, R. Lenzen, M. López del Fresno, M. J. López‐González, M. López‐Puertas, J. F. López Salas, R. Luque, H. Magán Madinabeitia, U. Mall, H. Mandel, E. Marfil, J. A. Marín Molina, D. Maroto Fernández, E. L. Martı́n, S. Martín‐Ruiz, C. J. Marvin, E. Mirabet, A. Moya, M. E. Moreno-Raya, E. Nagel, V. Naranjo, L. Nortmann, A. Ofir, R. Oreiro, Ε. Πάλλη, J. Panduro, V. M. Passegger, S. Pedraz, A. Pérez-Calpena, D. Pérez Medialdea, M. Perger, M. A. C. Perryman, M. Pluto, O. Rabaza, A. Ramón, R. Rébolo, P. Redondo, S. Reinhardt, P. Rhode, Hans‐Walter Rix, F. Rodler, E. Rodrı́guez, A. Rodríguez Trinidad, R.-R. Rohloff, A. Rosich, S. Sadegi, E. Sánchez-Blanco, M. Á. Sánchez Carrasco, A. Sánchez-López, J. Sanz‐Forcada, P. Sarkis, L. F. Sarmiento, Sebastian Schäfer, J. Schiller, P. Schöfer, A. Schweitzer, E. Solano, O. Stahl, J. B. P. Strachan, J. C. Suárez, H. M. Tabernero, Simon Tulloch, G. Veredas, José Ignacio Linares, F. Vilardell, Karl Wagner, J. Winkler, V. Wolthoff, Wei Xu, F. Yan, M. R. Zapatero Osorio
157Citations signalées, ce qui n’est pas une note de qualité
29Institutions déclarées
10Pays d’affiliation déclarés
Rattachement africain : de, es, mx, gb, it, us, nl, il, ie, cl.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Context.The main goal of the CARMENES survey is to find Earth-mass planets around nearby M-dwarf stars. Seven M dwarfs included in the CARMENES sample had been observed before with HIRES and HARPS and either were reported to have one short period planetary companion (GJ 15 A, GJ 176, GJ 436, GJ 536 and GJ 1148) or are multiple planetary systems (GJ 581 and GJ 876). Aims.We aim to report new precise optical radial velocity measurements for these planet hosts and test the overall capabilities of CARMENES. Methods.We combined our CARMENES precise Doppler measurements with those available from HIRES and HARPS and derived new orbital parameters for the systems. Bona-fide single planet systems were fitted with a Keplerian model. The multiple planet systems were analyzed using a self-consistent dynamical model and their best fit orbits were tested for long-term stability. Results.We confirm or provide supportive arguments for planets around all the investigated stars except for GJ 15 A, for which we find that the post-discovery HIRES data and our CARMENES data do not show a signal at 11.4 days. Although we cannot confirm the super-Earth planet GJ 15 Ab, we show evidence for a possible long-period (Pc= 7030-630+970d) Saturn-mass (mcsini= 51.8-5.8+5.5M⊕) planet around GJ 15 A. In addition, based on our CARMENES and HIRES data we discover a second planet around GJ 1148, for which we estimate a periodPc= 532.6-2.5+4.1days, eccentricityec= 0.342-0.062+0.050and minimum massmcsini= 68.1-2.2+4.9M⊕. Conclusions.The CARMENES optical radial velocities have similar precision and overall scatter when compared to the Doppler measurements conducted with HARPS and HIRES. We conclude that CARMENES is an instrument that is up to the challenge of discovering rocky planets around low-mass stars.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- The CARMENES search for exoplanets around M dwarfs
- Date Crossref
- 01/01/2018
- Éditeur
- EDP Sciences
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Les institutions déclarées
Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Les sujets associés
Stellar, planetary, and galactic studiesAstronomy and Astrophysical ResearchAstrophysics and Star Formation Studies