Tracing the Galactic thick disk to Solar metallicities
Astrophysics
2010-11-11 v1
Abstract
We show that the Galactic thick disk reaches at least solar metallicities, and that it experienced strong chemical enrichment during a period of ~3 Gyr, ending around 8-9 Gyr ago. This finding puts further constraints on the relation and interface between the thin and thick disks, and their formation processes. Our results are based on a detailed elemental abundance analysis of 261 kinematically selected F and G dwarf stars in the solar neighborhood: 194 likely members of the thick disk and 67 likely members of the thin disk, in the range -1.3<[Fe/H]<+0.4.
Cite
@article{arxiv.0705.2060,
title = {Tracing the Galactic thick disk to Solar metallicities},
author = {T. Bensby and A. R. Zenn and M. S. Oey and S. Feltzing},
journal= {arXiv preprint arXiv:0705.2060},
year = {2010}
}