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Title:
Abundances of neutron-capture elements in red giant stars
Authors:
Gorbaneva, T. I.
Affiliation:
AA(Astronomical Observatory, Odessa National University, Odessa, Ukraine)
Publication:
Astronomical and Astrophysical Transactions, vol. 25, Issue 5, p.463-467
Publication Date:
10/2006
Origin:
T+F
DOI:
10.1080/10556790601179842
Bibliographic Code:
2006A&AT...25..463G

Abstract

The neutron-capture element abundances in the 52 red giants with metallicities spanning the range-0.6<[Fe]/[H]<0.25 are found. High-resolution spectra (R=42 000; S/N>100) for the investigated stars were obtained with the ELODIE spectrograph of the 1.93 m telescope at the Observatoire de Haute Provence (France). The determination of elemental abundances was carried out with the local thermodynamic equilibrium assumption by the model atmosphere method; for Ba and Eu the hyperfine structure was taken into account. The dependences of the neutron-capture element abundances on metallicity are presented.
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