INVESTIGADORES
PARISI Maria Celeste
congresos y reuniones científicas
Título:
UBV, DDO and Washington photometric study of late-type evolved stars in the open cluster NGC 2447: membership and chemical composition
Autor/es:
CLARIÁ, J. J.; PIATTI, A. E.; LAPASSET, E.; PARISI, M. C.
Lugar:
La plata - Argentina
Reunión:
Congreso; 48 Reunión de la Asociación Argentina de Astronomía; 2005
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
UBV, DDO and Washington photometric data for 14 red giant candidates of the open cluster NGC 2447 are presented. Membership results emerging from the application of two photometric criteria are in excellent agreement with those derived from published Coravel radial velocities. A mean cluster reddening E(B-V) = 0.05 + 0.04 is derived. Both the ultraviolet excesses and the cyanogen anomalies of the cluster giants imply [Fe/H] approximately -0.1. Five Washington abundance indicators yield a mean cluster metallicity of Fe/H]_W = -0.09 + 0.06, thus confirming NGC 2447 to be a slightly metal-poor open cluster.
