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Abundancias químicas y estado de evolución de estrellas tipo B y A

Adelman, S. J.; Pintado, O.; Pedrosa, S.

Three stars of B (Alpha Tel and HR1781) and A (Tau7 Eri) type have been studied in order to determine their evolutionary state and the presence of chemical peculiarities. For this study we used spectra with high signal-to-noise ratios, obtained with the EBASIM spectrograph at CASLEO. The efective temperature, surface gravity, rotational velocity a…