Bibcode
Ribas, I.; Reiners, A.; Zechmeister, M.; Caballero, J. A.; Morales, J. C.; Sabotta, S.; Baroch, D.; Amado, P. J.; Quirrenbach, A.; Abril, M.; Aceituno, J.; Anglada-Escudé, G.; Azzaro, M.; Barrado, D.; Béjar, V. J. S.; Benítez de Haro, D.; Bergond, G.; Bluhm, P.; Calvo Ortega, R.; Cardona Guillén, C.; Chaturvedi, P.; Cifuentes, C.; Colomé, J.; Cont, D.; Cortés-Contreras, M.; Czesla, S.; Díez-Alonso, E.; Dreizler, S.; Duque-Arribas, C.; Espinoza, N.; Fernández, M.; Fuhrmeister, B.; Galadí-Enríquez, D.; García-López, A.; González-Álvarez, E.; González Hernández, J. I.; Guenther, E. W.; de Guindos, E.; Hatzes, A. P.; Henning, Th.; Herrero, E.; Hintz, D.; Huelmo, Á. L.; Jeffers, S. V.; Johnson, E. N.; de Juan, E.; Kaminski, A.; Kemmer, J.; Khaimova, J.; Khalafinejad, S.; Kossakowski, D.; Kürster, M.; Labarga, F.; Lafarga, M.; Lalitha, S.; Lampón, M.; Lillo-Box, J.; Lodieu, N.; López González, M. J.; López-Puertas, M.; Luque, R.; Magán, H.; Mancini, L.; Marfil, E.; Martín, E. L.; Martín-Ruiz, S.; Molaverdikhani, K.; Montes, D.; Nagel, E.; Nortmann, L.; Nowak, G.; Pallé, E.; Passegger, V. M.; Pavlov, A.; Pedraz, S.; Perdelwitz, V.; Perger, M.; Ramón-Ballesta, A.; Reffert, S.; Revilla, D.; Rodríguez, E.; Rodríguez-López, C.; Sadegi, S.; Sánchez Carrasco, M. Á.; Sánchez-López, A.; Sanz-Forcada, J.; Schäfer, S.; Schlecker, M.; Schmitt, J. H. M. M.; Schöfer, P.; Schweitzer, A.; Seifert, W.; Shan, Y.; Skrzypinski, S. L.; Solano, E.; Stahl, O.; Stangret, M.; Stock, S.; Stürmer, J.; Tabernero, H. M. et al.
Referencia bibliográfica
Astronomy and Astrophysics
Fecha de publicación:
2
2023
Revista
Número de citas
46
Número de citas referidas
42
Descripción
Context. The CARMENES instrument, installed at the 3.5 m telescope of the Calar Alto Observatory in Almería, Spain, was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of nearby cool stars. Moreover, the broad wavelength coverage was designed to provide a range of stellar activity indicators to assess the nature of potential RV signals and to provide valuable spectral information to help characterise the stellar targets.
Aims: We describe the CARMENES guaranteed time observations (GTO), spanning from 2016 to 2020, during which 19 633 spectra for a sample of 362 targets were collected. We present the CARMENES Data Release 1 (DR1), which makes public all observations obtained during the GTO of the CARMENES survey.
Methods: The CARMENES survey target selection was aimed at minimising biases, and about 70% of all known M dwarfs within 10 pc and accessible from Calar Alto were included. The data were pipeline-processed, and high-level data products, including 18 642 precise RVs for 345 targets, were derived. Time series data of spectroscopic activity indicators were also obtained.
Results: We discuss the characteristics of the CARMENES data, the statistical properties of the stellar sample, and the spectroscopic measurements. We show examples of the use of CARMENES data and provide a contextual view of the exoplanet population revealed by the survey, including 33 new planets, 17 re-analysed planets, and 26 confirmed planets from transiting candidate follow-up. A subsample of 238 targets was used to derive updated planet occurrence rates, yielding an overall average of 1.44 ± 0.20 planets with 1 M⊕ < Mpl sin i < 1000 M⊕ and 1 day < Porb < 1000 days per star, and indicating that nearly every M dwarf hosts at least one planet. All the DR1 raw data, pipeline-processed data, and high-level data products are publicly available online.
Conclusions: CARMENES data have proven very useful for identifying and measuring planetary companions. They are also suitable for a variety of additional applications, such as the determination of stellar fundamental and atmospheric properties, the characterisation of stellar activity, and the study of exoplanet atmospheres.
Aims: We describe the CARMENES guaranteed time observations (GTO), spanning from 2016 to 2020, during which 19 633 spectra for a sample of 362 targets were collected. We present the CARMENES Data Release 1 (DR1), which makes public all observations obtained during the GTO of the CARMENES survey.
Methods: The CARMENES survey target selection was aimed at minimising biases, and about 70% of all known M dwarfs within 10 pc and accessible from Calar Alto were included. The data were pipeline-processed, and high-level data products, including 18 642 precise RVs for 345 targets, were derived. Time series data of spectroscopic activity indicators were also obtained.
Results: We discuss the characteristics of the CARMENES data, the statistical properties of the stellar sample, and the spectroscopic measurements. We show examples of the use of CARMENES data and provide a contextual view of the exoplanet population revealed by the survey, including 33 new planets, 17 re-analysed planets, and 26 confirmed planets from transiting candidate follow-up. A subsample of 238 targets was used to derive updated planet occurrence rates, yielding an overall average of 1.44 ± 0.20 planets with 1 M⊕ < Mpl sin i < 1000 M⊕ and 1 day < Porb < 1000 days per star, and indicating that nearly every M dwarf hosts at least one planet. All the DR1 raw data, pipeline-processed data, and high-level data products are publicly available online.
Conclusions: CARMENES data have proven very useful for identifying and measuring planetary companions. They are also suitable for a variety of additional applications, such as the determination of stellar fundamental and atmospheric properties, the characterisation of stellar activity, and the study of exoplanet atmospheres.
Full Tables 1 and 2 are only available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/670/A139
Proyectos relacionados
Estrellas de Baja Masa, Enanas Marrones y Planetas
Se investigan los procesos que conducen a la formación de estrellas de baja masa, enanas marrones y exoplanetas y caracterizar las propiedades físicas de estos astros en varias etapas evolutivas. Las estrellas de muy baja masa y las enanas marrones son probablemente los objetos más numerosos de nuestra Galaxia, pero no por ello están
Rafael
Rebolo López
Exoplanetas y Astrobiología
La búsqueda de vida en el Universo se ha visto impulsada por los recientes descubrimientos de planetas alrededor de otras estrellas (los llamados exoplanetas), convirtiéndose en uno de los campos más activos dentro de la Astrofísica moderna. En los últimos años los descubrimientos cada vez más numerosos de nuevos exoplanetas y los últimos avances
Enric
Pallé Bago