INVESTIGADORES
PEDROSA Susana Elizabeth
congresos y reuniones científicas
Título:
Abundancias químicas y estado de evolución de estrellas tipo B y A
Autor/es:
PINTADO, OLGA; PEDROSA, SUSANA; ADELMAN, SAUL
Lugar:
San Juán, Argentina
Reunión:
Congreso; 47º Reunión Anual de la Asociación Argentina de Astronomía; 2004
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
Three stars of B (αTel y HR1781) and A (τ 7 Eri) type havebeen 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 effective temperature, surface gravity, rotational velocity and chemical abundances were derived. In order to determine the evolutionary state of the stars, we calculate their luminosity using Hipparcos parallaxes.
