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The Galactic thin and thick disks in the context of galaxy formation

Published online by Cambridge University Press:  09 March 2010

Thomas Bensby  and
Sofia Feltzing
Thomas Bensby
Affiliation:
European Southern Observatory, Santiago, Chile; email: tbensby@eso.org
Sofia Feltzing
Affiliation:
Lund Observatory, Lund, Sweden; email: sofia@astro.lu.se
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Abstract

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We have obtained high-resolution spectra and carried out a detailed elemental abundance analysis for a new sample of 899 F and G dwarf stars in the Solar neighbourhood. The results allow us to, in a multi-dimensional space consisting of stellar ages, detailed elemental abundances, and full kinematic information for the stars, study and trace their respective origins. Here we briefly address selection criteria and discuss how to define a thick disc star. The results are discussed in the context of galaxy formation.

Keywords

stars: abundancesstars: kinematicsGalaxy: abundancesGalaxy: disk
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S265: Chemical Abundances in the Universe: Connecting First Stars to Planets , August 2009 , pp. 300 - 303
Copyright
Copyright © International Astronomical Union 2010

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