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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 730090.0, MPI für Astronomie / Publikationen_mpia
CARMENES science preparation. High-resolution spectroscopy of M dwarfs
Authors:Montes, D.; Caballero, J. A.; Jeffers, S.; Alonso-Floriano, F. J.; Mundt, R.; Consortium, C.; Figueras, F.; Hernández-Monteagudo, C.; Trujillo Bueno, J.; Valdivielso, L.
Place of Publication:Barcelona
Publisher:Spanish Astronomical Society
Date of Publication (YYYY-MM-DD):2015
Audience:Not Specified
Abstract / Description:To ensure an efficient use of CARMENES observing time, and the highest chances of success, it is necessary first to select the most promising targets. To achieve this, we are observing 500 M dwarfs at high-resolution (R = 30,000-48,000), from which we determine the projected rotational velocity vsin{i} with an accuracy better than 0.5-0.2 km/s and radial-velocity stability better than 0.2-0.1 km/s. Our aim is to have at least two spectra at different epochs of the final 300 CARMENES targets. Our observations with FEROS at ESO/MPG 2.2 m La Silla, CAFE at 2.2 m Calar Alto and HRS at Hobby Eberly Telescope allow us to identify single- and double-line spectroscopic binaries and, especially, fast rotators, which should be discarded from the target list for exoplanet searches. Here we present preliminary results.
External Publication Status:published
Document Type:Other
Communicated by:N. N.
Affiliations:MPI für Astronomie
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