Bibcode
Tabernero, H. M.; Montes, D.; González-Hernández, J. I.
Referencia bibliográfica
Highlights of Spanish Astrophysics VII, Proceedings of the X Scientific Meeting of the Spanish Astronomical Society (SEA), held in Valencia, July 9 - 13, 2012, Eds.: J.C. Guirado, L.M. Lara, V. Quilis, and J. Gorgas., pp.634-640
Fecha de publicación:
5
2013
Número de citas
1
Número de citas referidas
1
Descripción
Stellar Kinematic Groups are kinematical coherent groups of stars which
might share a common origin. These groups spread through the Galaxy over
time due to tidal effects caused by galactic rotation and disc heating,
however the chemical information survives. The aim of chemical tagging
is to show that abundances of every chemical element must be homogeneus
among candidate members. We have studied the case of the Hyades
Supercluster and the Ursa Major Moving Group for kinematically selected
FGK stars, based on high-resolution spectroscopic observations obtained
at the 1.2 m Mercator Telescope with the HERMES Spectrograph. Stellar
atmospheric parameters (T_{eff}, log{g}, ξ and [Fe/H]) have been
determined using an own-implemented automatic code (StePar) which makes
use of the sensibility from iron EWs measured in the spectra. We have
derived the chemical abundances of several elements and their [X/Fe]
ratios. Thus, we finally perform a careful differential abundance
analysis using a known member of each cluster as a reference star, with
the aim to clarify the origin of these kinematical groups.