期刊
ASTRONOMY & ASTROPHYSICS
卷 614, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201629599
关键词
stars: activity; stars: rotation; techniques: spectroscopic; catalogs
资金
- German Max-Planck-Gesellschaft (MPG)
- Spanish Consejo Superior de Investigaciones Cientificas (CSIC)
- European Union through FEDER/ERF FICTS-2011-02 funds
- Max-Planck-Institut fur Astronomie
- Instituto de Astrofisica de Andalucia
- Landessternwarte Konigstuhl
- Institut de Ciencies de l'Espai
- Insitut fur Astrophysik Gottingen
- Universidad Complutense de Madrid
- Thuringer Landessternwarte Tautenburg
- Instituto de Astrofisica de Canarias
- Hamburger Sternwarte
- Centro de Astrobiologia
- Centro Astronomico Hispano-Aleman
- Spanish Ministry of Economy
- German Science Foundation through the Major Research Instrumentation Programme
- DFG Research Unit [FOR2544, JE 701/3-1]
- Klaus Tschira Stiftung
- state of Baden-Wurttemberg
- state of Niedersachsen
- Junta de Andalucia
- Spanish Ministry of Economy and Competitiveness (MINECO)
- Fondo Europeo de Desarrollo Regional (FEDER) [ESP2016-80435-C2-1-R]
- Generalitat de Catalunya/CERCA programme
CARMENES is a spectrograph for radial velocity surveys of M dwarfs with the aim of detecting Earth-mass planets orbiting in the habitable zones of their host stars. To ensure an optimal use of the CARMENES guaranteed time observations, in this paper we investigate the correlation of activity and rotation for approximately 2200 M dwarfs, ranging in spectral type from M0.0V to M9.0V. We present new high-resolution spectroscopic observations with FEROS, CAFE, and HRS of approximately 500 M dwarfs. For each new observation, we determined its radial velocity and measured its H alpha activity index and its rotation velocity. Additionally, we have multiple observations of many stars to investigate if there are any radial velocity variations due to multiplicity. The results of our survey confirm that early-M dwarfs are H alpha inactive with low rotational velocities and that late-M dwarfs are H alpha active with very high rotational velocities. The results of this high-resolution analysis comprise the most extensive catalogue of rotation and activity in M dwarfs currently available.
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