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astro-ph2000
The anomalous Galactic globular cluster NGC 2808
L. R. Bedin, G. Piotto, M. Zoccali +4
We present UBVI photometry for about 60,000 stars in a region of 44'x33' centered on the Galactic globular cluster (GGC) NGC 2808. The central region has been mapped with the HST W…
astro-ph2000
The red giant branches of Galactic globular clusters in the [(V-I)o,Mv] plane: metallicity indices and morphology
Ivo Saviane, Alfred Rosenberg, Giampaolo Piotto +1
The purpose of this study is to carry out a thorough investigation of the changes in morphology of the red giant branch (RGB) of Galactic globular clusters (GGC) as a function of m…