INSUGEO   12554
INSTITUTO SUPERIOR DE CORRELACION GEOLOGICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Chemically Peculiar Main Sequences Stars in the Milky Way and Beyond
Autor/es:
NETOPIL, M.; PAUNZEN, E.; MAITZEN, M.H.; PINTADO, O. I.; ILLIEV, I.KH.
Lugar:
Moscu
Reunión:
Congreso; Putting A Stars into Context: Evolution, Environment, and Related Stars; 2013
Institución organizadora:
Russian Academy of science
Resumen:
Delta_a photometry is a valuable tool to detect magnetic chemically peculiar stars in an economic way due to their characteristic flux depression at 5200A. Our main focus of attention is to survey galactic open clusters, to identify a sufficient large number of chemically peculiar cluster stars. Since open clusters offer the big advantage that the parameters like the age or distance can be determined rather accurately, one can trace relations of their occurrence with age and other properties. On the basis of about 80 open clusters covered so far with delta_a photometry, we present a preliminary analysis, with shows the evolution of magnetic chemically peculiar stars. A part from the galactic representatives, delta_a was also already able to discover them in another environment, the Large Magellanic Cloud. This nearby galaxy exhibits different properties than the Milky Way, which can be additionally used to investigate the favouring conditions fot the formation of chemically peculiar stars.