Highlights on Spanish Astrophysics IX, Proceedings of the XII Scientific Meeting of the Spanish Astronomical Society held on July 18 – 22, 2016, in Bilbao, Spain. S. Arribas, A. Alonso-Herrero, F.
Figueras, C. Hernández-Monteagudo, A. Sánchez-Lavega, S. Pérez-Hoyos (eds.)
Determination of rotation periods of M stars with photometric techniques
E. D´ ıez Alonso
1,2, D. Montes
1, F. J. de Cos Juez
3, R. Naves
4, F. Garc´ ıa de la Cuesta
5, E. Herrero
6, V. J. S. B´ ejar
7,8, J. A. Caballero
9,10, A. Quirrenbach
10, P. J. Amado
11, I. Ribas
6, A. Reiners
12, R. Mundt
13, W. Seifert
10,
and the CARMENES Consortium
1
Dpto. Astrof´ısica, Facultad CC. F´ısicas, Universidad Complutense de Madrid, E-280140, Madrid, Spain
2
Observatorio Carda (mpc Z76), Spain
3
Mining Exploitation and Prospecting Department, Universidad de Oviedo, E-33004 Oviedo, Spain
4
Observatorio Montcabrer (mpc 213), Spain
5
Observatorio La Vara, Vald´ es (mpc J38), Spain
6
Institut de Ci` encies de l’Espai (CSIC-IEEC), Campus UAB, Facultat Ci` encies, Torre C5 - parell - 2a planta, E-08193 Bellaterra, Barcelona, Spain
7
Instituto de Astrof´ısica de Canarias, E-38205 La Laguna, Tenerife, Spain
8
Universidad de la Laguna, Dept. Astrof´ısica, E-38206 La Laguna, Tenerife, Spain
9
Centro de Astrobiolog´ıa (CSIC-INTA), Campus ESAC, PO Box 78, E-28691 Villanueva de la Ca˜ nada, Madrid, Spain
10
Landessternwarte (LSW), Zentrum f¨ ur Astronomie der Universit¨ at Heidelberg, K¨ onigstuhl 12, D-69117 Heidelberg, Germany
11
Instituto de Astrof´ısica de Andaluc´ıa (CSIC), Glorieta de la Astronom´ıa s/n, E-18008 Granada, Spain
12
Institut f¨ ur Astrophysik (IAG), Friedrich-Hund-Platz 1, D-37077 G¨ ottingen, Germany
13
Max-Planck-Institut f¨ ur Astronomie, K¨ onigstuhl 12, D-69117 Heidelberg, Germany
502
D´ıez Alonso et al. 503
Abstract
This work is part of the project CARMENES (Calar Alto search for high-Resolution M dwarfs With Exoearths With Near-infrared and optical Echelle spectrographs) searching for Earthlike exoplanets in M dwarf stars (Quirrenbach et al. 2014SPIE.9147E..1FQ). Our goal is to characterize the rotation periods of the M-type dwarf stars of CARMENES input catalog in order to distinguish variations in radial velocity produced by magnetic activity of those produced by possible exoplanets. These data will also allow us to study in detail the dependence of chromospheric activity with rotation in this type of stars. We are analyzing photometric series of our input stars obtained by surveys as MEarth, ASAS or K2 and doing our own observations at various telescopes in collaboration with amateur observatories. We are also developing and testing new photometric techniques based on intelligent modeling of atmospheric turbulence to improve rotation curves.
Acknowledgments
CARMENES is funded by the German Max-Planck-Gesellshaft (MPG), the Spanish Consejo Superior de Investiga- ciones Cient´ıficas (CSIC), the European Union through FEDER/ERF funds, and the members of the CARMENES Consortium (Max-Planck Institut f¨ur Astronomie, Instituto de Astrof´ısica de Andaluc´ıa, Landessternwarte K¨onigstuhl, Institut de Ci`ences de l’Espai, Institut f¨ur Astrophysik G¨ottingen, Universidad Complutense de Madrid, Th¨uringer Landessternwarte Tautenburg, Instituto de Astrof´ısica de Canarias, Hamburger Sternwarte, Centro de Astrobiolog´ıa, and the Centro Astron´omico Hispano-Alem´an), with additional contributions by the Spanish Ministry of Economy, the state of Niedersachsen, the German Science Foundation (DFG), and by the Junta de Andaluc´ıa. Financial support was also provided by the Junta de Andaluc´ıa, the Universidad Complutense de Madrid, and the Spanish Ministries of Science and Innovation and of Economy and Competitiveness, under grants 2011-FQM-7363, AP2009-0187, AYA2014- 54348-C3-01/02/03-R, AYA2015-69350-C3-2-P, ESP2013-48391-C4-1-R, and ESP2014-57495-C2-2-R.
