Chemical composition of stars in kinematical substructures of the galactic disk
1 Astronomical Observatory of Odessa National University, Odessa, Ukraine
2 Universite de Bordeaux 1-CNRS-Laboratoire d’Astrophysique de Bordeaux, UMR 5804, France
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The Y, Zr, La, Ce, Nd , Sm and Eu abundances were found in LTE approach, and the abundance of Ba was computed in NLTE approximation for 280 FGK dwarfs in the region of metallicity of − 1<[Fe]< + 0.3. The selection of stars belonging to thin and thick disks and the stream Hercules was made on kinematic criteria. The analysis of enrichment of the different substructures of the Galaxy with α-element (Mg, Si), the iron peak (Ni) and neutron-capture elements was carried out.
© Owned by the authors, published by EDP Sciences, 2012