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| Paper: |
Kinematics of Ultracool Dwarfs:
Membership in Moving Groups and Associations |
| Volume: |
448, 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun |
| Page: |
1383 |
| Authors: |
Montes, D.; Caballero, J. A. |
| Abstract: |
We present the preliminary results of a detailed study of the kinematics (Galactic space motions UVW) of a sample of very low-mass ultracool dwarfs (spectral type later than M6) with radial velocities and proper motions determined in the literature. For the dwarfs with U and V velocity components inside or near the boundaries that determine the young disk population as defined by Eggen, we have analyzed their possible membership in the classical moving groups with ages between 100 and 650 Myr (i.e., Castor, Ursa Major, IC 2391, Hyades) and the nearby loose associations with ages younger than the Pleiades that are associated to the Local Association (i.e., TW Hya, β Pic, Tuc-Hor, AB Dor). For the candidate members in young stellar kinematic groups, we have compiled the information available in the literature to constraint their membership by applying other age-dating methods (lithium, low-gravity). |
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