Protostars and Planets VI, Heidelberg, July 15-20, 2013

Poster 2K021

CARMENES AT PPVI. 4. HIGH-RESOLUTION SPECTROSCOPY OF M DWARFS WITH FEROS, CAFE AND HRS

Alonso-Floriano, F. J. (Universidad Complutense de Madrid, Spain)
Montes, D. (Universidad Complutense de Madrid, Spain)
Jeffers, S. (Institut für Astrophysik Göttingen, Germany)
Caballero, J. A. (Centro de Astrobiología, Spain)
Zechmeister, M. (Institut für Astrophysik Göttingen, Germany)
Mundt, R. (Max-Planck-Institut für Astronomie, Germany)
Reiners, A. (Institut für Astrophysik Göttingen, Germany)
Amado, P. J. (Instituto de Astrofísica de Andalucía, Spain)
Casal, E. (Instituto de Astrofísica de Andalucía, Spain)
Cortés-Contreras, M. (Universidad Complutense de Madrid, Spain)
Modroño, Z. (Instituto de Astrofísica de Andalucía, Spain)
Ribas, I. (Institut de Ciències de l\'Espai)
Rodríguez-López, C. (Instituto de Astrofísica de Andalucía, Spain)
Quirrenbach, A. (Landessternwarte Königstuhl, Germany)

Abstract:
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 vsini 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 2.2m La Silla , CAFE at 2.2m 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.

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