Tracing the Galactic Thick Disk to Solar Metallicities
T. Bensby, A.R. Zenn, M.S. Oey, & S. Feltzing
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 89 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.
ApJ Letters, 663, L13
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Journal article via ADS
astro-ph/0705.2060
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