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

Abstract

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.

Contributed talk at Chemical abundances in the Universe, connecting first stars to planets, Proceedings of the International Astronomical Union, IAU Symposium, Volume 265, K. Cunha, M. Spite and B. Barbuy, eds, Cambridge University Press, in press

References in corpus (6)

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• Thin, thick and dark discs in LCDM
• Disentangling the Hercules stream
• Gas-Rich Mergers in LCDM: Disk Survivability and the Baryonic Assembly of Galaxies
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Cited by in corpus (7)

• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• The Gaia-ESO Survey: the Galactic Thick to Thin Disc transition
• A possible signature of terrestrial planet formation in the chemical composition of solar analogs
• Heating of Milky Way disc Stars by Dark Matter Fluctuations in Cold Dark Matter and Fuzzy Dark Matter Paradigms
• Characterisation of the Galactic thin disc with Corot targets
• How can star formation be sustained?
• Characterisation of the Galactic thick disk