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  CARMENES input catalogue of M dwarfs. IV. New rotation periods from photometric time series

Díez Alonso, E., Caballero, J. A., Montes, D., de Cos Juez, F. J., Dreizler, S., Dubois, F., et al. (2019). CARMENES input catalogue of M dwarfs. IV. New rotation periods from photometric time series. Astronomy and Astrophysics, 621.

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https://ui.adsabs.harvard.edu/abs/2019A&A...621A.126D (beliebiger Volltext)
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Díez Alonso, E.1, Autor
Caballero, J. A.1, Autor
Montes, D.1, Autor
de Cos Juez, F. J.1, Autor
Dreizler, S.1, Autor
Dubois, F.1, Autor
Jeffers, S. V.1, Autor
Lalitha, S.1, Autor
Naves, R.1, Autor
Reiners, A.1, Autor
Ribas, I.1, Autor
Vanaverbeke, S.1, Autor
Amado, P. J.1, Autor
Béjar, V. J. S.1, Autor
Cortés-Contreras, M.1, Autor
Herrero, E.1, Autor
Hidalgo, D.1, Autor
Kürster, M.1, Autor
Logie, L.1, Autor
Quirrenbach, A.1, Autor
Rau, S.1, AutorSeifert, W.1, AutorSchöfer, P.1, AutorTal-Or, L.1, Autor mehr..
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

Inhalt

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Schlagwörter: stars: activity stars: late-type stars: rotation techniques: photometric Astrophysics - Solar and Stellar Astrophysics
 Zusammenfassung:
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. Tables A.1 and A.2, and tables of the photometric measurements are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr/">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz- bin/qcat?J/A+A/621/A126">http://cdsarc.u-strasbg.fr/viz- bin/qcat?J/A+A/621/A126</A>

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 Datum: 2019
 Publikationsstatus: Erschienen
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Titel: Astronomy and Astrophysics
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 621 Artikelnummer: - Start- / Endseite: - Identifikator: -