Mon. Not. R. Astron. Soc., 328, 45-63 (2001/November-3)
Late-type members of young stellar kinematic groups - I. Single stars.
MONTES D., LOPEZ-SANTIAGO J., GALVEZ M.C., FERNANDEZ-FIGUEROA M.J., DE CASTRO E. and CORNIDE M.
Abstract (from CDS):
This is the first paper of a series aimed at studying the properties of late-type members of young stellar kinematic groups. We concentrate our study on classical young moving groups such as the Local Association (Pleiades moving group, 20-150 Myr), IC 2391 supercluster (35Myr), Ursa Major group (Sirius supercluster, 300Myr), and Hyades supercluster (600Myr), as well as on recently identified groups such as the Castor moving group (200Myr). In this paper we compile a preliminary list of single late-type possible members of some of these young stellar kinematic groups. Stars are selected from previously established members of stellar kinematic groups based on photometric and kinematic properties as well as from candidates based on other criteria such as their level of chromospheric activity, rotation rate and lithium abundance. Precise measurements of proper motions and parallaxes taken from the Hipparcos Catalogue, as well as from the Tycho-2 Catalogue, and published radial velocity measurements are used to calculate the Galactic space motions (U, V, W) and to apply Eggen's kinematic criteria in order to determine the membership of the selected stars to the different groups. Additional criteria using age-dating methods for late-type stars will be applied in forthcoming papers of this series. A further study of the list of stars compiled here could lead to a better understanding of the chromospheric activity and their age evolution, as well as of the star formation history in the solar neighbourhood. In addition, these stars are also potential search targets for direct imaging detection of substellar companions.
The Royal Astronomical Society
catalogues - stars: activity - stars: chromospheres - stars: kinematics - stars: late-type - open clusters and associations: general
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<Available at CDS (J/MNRAS/328/45): singles.dat binaries.dat>
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