Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-03-31
Astron.Astrophys. 404 (2003) 187-210
Astronomy and Astrophysics
Astrophysics
43 pages, 8 encapsulated figures, 13 tables. Table 1 only available in electronic form at CDS or from first author. Accepted f
Scientific paper
10.1051/0004-6361:20030439
We present element-to-element abundance ratios measured from high dispersion spectra for 150 field subdwarfs and early subgiants with accurate Hipparcos parallaxes (errors <20%). For 50 stars new spectra were obtained with the UVES on Kueyen (VLT UT2), the McDonald 2.7m telescope, and SARG at TNG. Additionally, literature equivalent widths were taken from the works by Nissen & Schuster, Fulbright, and Prochaska et al. to complement our data. The whole sample includes both thick disk and halo stars (and a few thin disk stars); most stars have metallicities in the range -2<[Fe/H]<-0.6. We found our data, that of Nissen & Schuster, and that of Prochaska to be of comparable quality; results from Fulbright scatter a bit more, but they are still of very good quality and are extremely useful due to the large size of his sample. The results of the present analysis will be used in forthcoming papers to discuss the chemical properties of the dissipational collapse and accretion components of our Galaxy.
Barbieri Mauro
Carretta Eugenio
Claudi Riccardo
Gratton Raffaele
Lucatello Sara
No associations
LandOfFree
Abundances for metal-poor stars with accurate parallaxes I. Basic data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Abundances for metal-poor stars with accurate parallaxes I. Basic data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abundances for metal-poor stars with accurate parallaxes I. Basic data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-102227