TY - JOUR
T1 - CARMENES input catalogue of M dwarfs
T2 - IV. New rotation periods from photometric time series
AU - Díez Alonso, E.
AU - Caballero, J. A.
AU - Montes, D.
AU - De Cos Juez, F. J.
AU - Dreizler, S.
AU - Dubois, F.
AU - Jeffers, S. V.
AU - Lalitha, S.
AU - Naves, R.
AU - Reiners, A.
AU - Ribas, I.
AU - Vanaverbeke, S.
AU - Amado, P. J.
AU - Béjar, V. J.S.
AU - Cortés-Contreras, M.
AU - Herrero, E.
AU - Hidalgo, D.
AU - Kürster, M.
AU - Logie, L.
AU - Quirrenbach, A.
AU - Rau, S.
AU - Seifert, W.
AU - Schöfer, P.
AU - Tal-Or, L.
N1 - Publisher Copyright:
© ESO 2019.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Aims. The main goal of this work is to measure rotation periods of the M-type dwarf stars being observed by the CARMENES exoplanet survey to help distinguish radial-velocity signals produced by magnetic activity from those produced by exoplanets. Rotation periods are also fundamental for a detailed study of the relation between activity and rotation in late-type stars. Methods. We look for significant periodic signals in 622 photometric time series of 337 bright, nearby M dwarfs obtained by long-time baseline, automated surveys (MEarth, ASAS, SuperWASP, NSVS, Catalina, ASAS-SN, K2, and HATNet) and for 20 stars which we obtained with four 0.2-0.8 m telescopes at high geographical latitudes. Results. We present 142 rotation periods (73 new) from 0.12 d to 133 d and ten long-term activity cycles (six new) from 3.0 a to 11.5 a. We compare our determinations with those in the existing literature; we investigate the distribution of Prot in the CARMENES input catalogue, the amplitude of photometric variability, and their relation to v sini and pEW(Hα); and we identify three very active stars with new rotation periods between 0.34 d and 23.6 d.
AB - Aims. The main goal of this work is to measure rotation periods of the M-type dwarf stars being observed by the CARMENES exoplanet survey to help distinguish radial-velocity signals produced by magnetic activity from those produced by exoplanets. Rotation periods are also fundamental for a detailed study of the relation between activity and rotation in late-type stars. Methods. We look for significant periodic signals in 622 photometric time series of 337 bright, nearby M dwarfs obtained by long-time baseline, automated surveys (MEarth, ASAS, SuperWASP, NSVS, Catalina, ASAS-SN, K2, and HATNet) and for 20 stars which we obtained with four 0.2-0.8 m telescopes at high geographical latitudes. Results. We present 142 rotation periods (73 new) from 0.12 d to 133 d and ten long-term activity cycles (six new) from 3.0 a to 11.5 a. We compare our determinations with those in the existing literature; we investigate the distribution of Prot in the CARMENES input catalogue, the amplitude of photometric variability, and their relation to v sini and pEW(Hα); and we identify three very active stars with new rotation periods between 0.34 d and 23.6 d.
KW - Stars: Activity
KW - Stars: Late-type
KW - Stars: Rotation
KW - Techniques: Photometric
UR - https://www.scopus.com/pages/publications/85060377711
U2 - 10.1051/0004-6361/201833316
DO - 10.1051/0004-6361/201833316
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AN - SCOPUS:85060377711
SN - 0004-6361
VL - 621
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
M1 - A126
ER -