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arXiv:astro-ph/0612459 (astro-ph)
[Submitted on 16 Dec 2006]

Title:The nature of the metal-rich thick disk

Authors:T. Bensby (1), A.R. Zenn (1), M.S. Oey (1), S. Feltzing (2) ((1) Dept of Astronomy, University of Michigan, Ann Arbor, USA, (2) Lund Observatory, Sweden)
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Abstract: We have traced the Galactic thick disk to its, to date, highest metallicities. Based on high-resolution spectroscopic observations of 187 F and G dwarf stars that kinematically can be associated either with the thin disk (60 stars) or with the thick disk (127 stars), we find that the thick disk stars reach at least solar metallicities, and maybe even higher. This finding is independent of the U_LSR, V_LSR and W_LSR velocities of the stars.
Comments: 6 pages, to appear in proceedings for "From stars to galaxies: Building the pieces to build up the Universe" conference, held in Venice, 16-20 October 2006, A. Vallenari, R. Tantali, L. Portinari, A. Moretti (eds), ASP Conf Ser
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0612459
  (or arXiv:astro-ph/0612459v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0612459

Submission history

From: Thomas Bensby [view email]
[v1] Sat, 16 Dec 2006 02:22:03 UTC (134 KB)
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