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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

References

Bensby, T., Feltzing, S., & Lundström, I. 2003, A&A, 410, 527Google Scholar
Bensby, T., Feltzing, S., Lundström, I., & Ilyin, I. 2005, A&A, 433, 185Google Scholar
Bensby, T., Oey, M. S., Feltzing, S., & Gustafsson, B. 2007a, ApJ, 655, L89Google Scholar
Bensby, T., Zenn, A. R., Oey, M. S., & Feltzing, S. 2007b, ApJ, 663, L13CrossRefGoogle Scholar
Fuhrmann, K. 2008, MNRAS, 384, 173CrossRefGoogle Scholar
Gilmore, G. & Reid, N. 1983, MNRAS, 202, 1025Google Scholar
Koda, J., Milosavljević, M., & Shapiro, P. R. 2009, ApJ, 696, 254Google Scholar
Nissen, P. E. 2004, in Origin and Evolution of the Elements, Carnegie Observatories Astrophysics Series, Vol. 4, (Eds.) McWilliam, A. and Rauch, M., Pasadena: Carnegie Observatories, 156Google Scholar
Quinn, P. J., Hernquist, L., & Fullagar, D. P. 1993, ApJ, 403, 74Google Scholar
Read, J. I., Lake, G., Agertz, O., & Debattista, V. P. 2008, MNRAS, 389, 1041CrossRefGoogle Scholar
Reddy, B. E., Lambert, D. L., & Allende Prieto, C. 2006, MNRAS, 367, 1329CrossRefGoogle Scholar
Scannapieco, C., White, S. D. M., Springel, V., & Tissera, P. B. 2009, MNRAS, 396, 696Google Scholar
Schönrich, R. & Binney, J. 2009, arXiv:0907.1899v1 [astro-ph.GA]Google Scholar
Springel, V., Frenk, C. S., & White, S. D. M. 2006, Nature, 440, 1137CrossRefGoogle Scholar
Stewart, K. R., Bullock, J. S., Wechsler, R. H., & Maller, A. H. 2009, ApJ, 702, 307CrossRefGoogle Scholar
Villalobos, Á. & Helmi, A. 2009, arXiv:0902.1624v1 [astro-ph.GA]Google Scholar