Bibcode
Tabernero, H. M.; Montes, D.; González Hernández, J. I.
Referencia bibliográfica
Stellar Clusters & Associations: A RIA Workshop on Gaia. Proceedings. Granada, Spain, May 23 - 27, 2011. Edited by: Alfaro Navarro, E. J.; Gallego Calvente, A. T.; Zapatero Osorio, M. R., pp.391-392
Fecha de publicación:
2011
Número de citas
1
Número de citas referidas
0
Descripción
Stellar Kinematic Groups are kinematical coherent groups of stars which
may share a common origin. These groups spread through the Galaxy over
time due to tidal effects caused by galactic rotation and disk heating,
however some chemical information remains unchanged. The aim of chemical
tagging is to show that abundances of every element in the analysis must
be homogeneous between members. We have studied the case of the Hyades
Supercluster in order to compile a reliable list of members (FGK stars)
based on chemical tagging information. This information has been derived
from high-resolution echelle spectra obtained during our surveys of
late-type stars. For selected northern stars of the Hyades Supercluster,
stellar atmospheric parameters (Teff, log(g), Xi and [Fe/H]) have been
determined using an automatic code which takes into account the
sensibility of iron EWs measured in the spectra. We have derived
absolute abundances consistent with galactic abundance trends reported
in previous studies. The chemical tagging method has been applied with a
carefully differential abundance analysis of each candidate star, using
a well-known member of the Hyades cluster as reference.