The parameters and elemental abundances of atmospheres for ten thick-disk red giants was determined from high-resolution spectra by the method of model stellar atmospheres. The results of a comparative analysis of the [Na/Fe] abundances in the atmospheres of the investigated stars and thin disk red giants are presented. Sodium in the atmospheres of thick-disk red giants is shown to have no overabundances typical of thin-disk red giants.
@article{arxiv.1311.5040,
title = {Sodium in the Atmospheres of Thick-Disk Red Giants},
author = {Yu. V. Pakhomov},
journal= {arXiv preprint arXiv:1311.5040},
year = {2013}
}
Comments
10 pages, 3 figures, published in Astronomical Letters 2013AstL...39...54P