Kinematics of M dwarfs in the CARMENES input catalogue: membership in young moving groups

TL;DR

This study analyzes the kinematics of M dwarfs in the CARMENES catalog to identify potential members of young moving groups, aiding understanding of their ages and galactic distribution.

Contribution

It provides a detailed kinematic analysis of M dwarfs and assesses their membership in young moving groups using multiple age-dating methods.

Findings

Identification of candidate M dwarfs in young moving groups

Enhanced understanding of M dwarf kinematics in the galaxy

Potential new members of young stellar associations

Abstract

We present a detailed study of the kinematics of M dwarfs in the CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Echelle Spectrographs) input catalog. We have selected all M dwarfs with known parallactic distance or a good photometric distance estimation, precise proper motion in the literature or as determined by us, and radial velocity measurements. Using these parameters, we computed the M dwarfs galactic space motions (U, V, W). For the stars with U and V velocity components inside or near the boundaries that determine the young disk population, we have analyzed the possible membership in the classical moving groups and nearby loose associations with ages between 10 and 600 Ma. For the candidate members, we have compiled information available in the literature in order to constrain their membership by applying other age-dating methods.