CARMENES: high-resolution spectra and precise radial velocities in the red and infrared

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The CARMENES instrument has been operational at the 3.5 m telescope of Calar Alto Observatory since January 2016. It consists of two cross-dispersed ´echelle spectrographs covering the wavelength range from 0.52 to 1.71 µm. CARMENES is currently conducting a radial-velocity survey of more than 300 M dwarfs, with a sensitivity sufficient to detect terrestrial planets in their habitable zones. This survey has already yielded a comprehensive spectral atlas of 324 M dwarfs, and it is providing a wealth of diagnostic information on activity in cool stars. The CARMENES Survey data have confirmed a number of known M star planets, and revealed previously unknown planets of GJ 15 A, GJ 1148, and GJ 617 A. CARMENES data have also been used to determine the mass of the transiting planet K2-18 b, and to measure atomic and molecular absorption in planetary atmospheres through transit spectroscopy.
© 2018 SPIE. Artículo firmado por 202 autores. Conference on Ground-Based and Airborne Instrumentation for Astronomy (VII. 2018. Austin, TX, USA). CARMENES is an instrument for the Centro Astronómico Hispano-Alemán de Calar Alto (CAHA, Almería, Spain). CARMENES is funded by the German Max-Planck-Gesellschaft (MPG), the Spanish Consejo Superior de Investigaciones Científicas (CSIC), the European Union through FEDER/ERF FICTS-2011-02 funds, and the members of the CARMENES Consortium (Max-Planck-Institut für Astronomie, Instituto de Astrofísica de Andalucía, Landessternwarte Körnigstuhl, Institut de Ciències de l’Espai, Insitut für Astrophysik Göttingen, Universidad Complutense de Madrid, Thüringer Landessternwarte Tautenburg, Instituto de Astrofísica de Canarias, Hamburger Sternwarte, Centro de Astrobiología and Centro Astronómico Hispano-Alemán), with additional contributions by the Spanish Ministry of Science, the German Science Foundation through the Major Research Instrumentation Program and DFG Research Unit FOR2544 “Blue Planets around Red Stars”, the Klaus Tschira Stiftung, the states of Baden-Württemberg and Niedersachsen, and by the Junta de Andalucía.
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