Kinematics, activity and youth in the CARMENES input catalogue of M dwarfs
Year: 2024
Type: article
Abstract: We use the public code SteParKin to derive their galactic space velocities, which served us to locate them into the different galactic populations. We also identify candidate members in young stellar kinematic groups with SteParKin, LACEwING, and BANYAN Sigma based on their kinematics. From the combination of kinematic assignments as a proxy of age and rotation-activity features, we define five rotation-activity-spectral type relations that M dwarfs under 800 Ma satisfy. We are then able to assess youth in this regime from the available data. We identify around 170 young (age<800 Ma) M dwarfs in the solar neighbourhood, many of which have never been suggested before as young candidate stars. We also provide a list with 50 active M dwarfs and with the strongest surface magnetic fields among which there are 7 M dwarfs that are perhaps the youngest, most active, nearest M dwarfs observable from Calar Alto, with ages less than about 50 Ma.
Authors: José A. Caballero, David Montes Gutiérrez, Carlos Cardona Guillén, Víctor J. S. Béjar, Hugo M. Tabernero, María R. Zapatero-Osorio, Perdo J. Amado, Sandra V. Jeffers, Marina Lafarga, Nicolas Lodieu, Andreas Quirrenbach, Ansgar Reiners, Ignasi Ribas, Patrick Schöfer, Andreas Schweitzer, Walter Seifert
Institutions: Centro de Astrobiología, Universidad Complutense de Madrid, Universidad de La Laguna, Instituto de Astrofísica de Canarias, Instituto de Astrofísica de Andalucía, Max Planck Institute for Solar System Research, University of Warwick, Heidelberg University, University of Göttingen, Institute of Space Sciences, Consejo Superior de Investigaciones Científicas, Institut d'Estudis Espacials de Catalunya
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6893107142
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