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Title:
Stars within 15 Parsecs: Abundances for a Northern Sample
Authors:
Luck, R. Earle; Heiter, Ulrike
Affiliation:
AA(Department of Astronomy, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-7215 ), AB(Department of Astronomy and Space Physics, Uppsala University, Box 515, SE-75120 Uppsala, Sweden )
Publication:
The Astronomical Journal, Volume 129, Issue 2, pp. 1063-1083. (AJ Homepage)
Publication Date:
02/2005
Origin:
UCP
Astronomy Keywords:
Stars: Abundances
DOI:
10.1086/427250
Bibliographic Code:
2005AJ....129.1063L

Abstract

We present an abundance analysis for stars within 15 pc of the Sun located north of -30° declination. We have limited our abundance sample to absolute magnitudes brighter than +7.5 and have eliminated several A stars in the local vicinity. Our final analysis list numbers 114 stars. Unlike Allende Prieto et al. in their consideration of a very similar sample, we have enforced strict spectroscopic criteria in the determination of atmospheric parameters. Nevertheless, our results are very similar to theirs. We determine the mean metallicity of the local region to be <[Fe/H]>=-0.07 using all stars and -0.04 when interlopers from the thick disk are eliminated.
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