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Chemical abundances in 43 metal-poor stars

Jonsell, K; Edvardsson, B; Gustafsson, Bengt; Magain, P; Nissen, Poul E; Asplund, Martin


We have derived abundances of O, Na, Mg, AI, Si, Ca, Sc, Ti, V, Cr, Fe, Ni, and Ba for 43 metal-poor field stars in the solar neighbourhood, most of them subgiants or turn-off-point stars with iron abundances [Fe/H] ranging from -0.4 to -3.0. About half of this sample has not been spectroscopically analysed in detail before. Effective temperatures were estimated from uvby photometry, and surface gravities primarily from Hipparcos parallaxes. The analysis is differential relative to the Sun, and...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361:20052797


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