Abstract
Based on the VLT high-resolution spectra for stars of five open clusters: Ruprecht 4, Ruprecht 7, Berkeley 25, Berkeley 73, and Berkeley 75 (G. Carraro et al., 2007) we determined the yttrium and barium abundances using the synthetic-spectrum method. Barium abundance was calculated under a non-LTE approximation. We analyzed the correlation between yttrium and barium abundances and the ages of open clusters and stars of the Galactic thin disk.
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Original Russian Text © T.V. Mishenina, S.A. Korotin, I.A. Yegorova, V.V. Kovtukh, G. Carraro, 2013, published in Izvestiya Krymskoi Astrofizicheskoi Observatorii, 2013, Vol. 109, pp. 52–56.
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Mishenina, T.V., Korotin, S.A., Yegorova, I.A. et al. Yttrium and barium in open clusters. Bull.Crim. Astrophys. Observ. 109, 32–34 (2013). https://doi.org/10.3103/S0190271713010154
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DOI: https://doi.org/10.3103/S0190271713010154