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Abstract
Open clusters are very useful objects in astrophysics; they have been used to study the theory of star formation and evolution and the structure of the Milky Way. We analyzed here dwarf and giant stars belonging to the open clusters IC 2391 and NGC 6475. The high-resolution spectra were obtained from the ESO/Archive database. To calculate the atmospheric parameters (Teff, log g, ε, [Fe/H]) and chemical abundances we applied the local thermal equilibrium (LTE) hypothesis. Our results confirmed the behavior of the chemical abundances in the galactic disk.
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