147 citations · 794 across the 13 of their papers we have counts for
6 papers · 2 filters
Na-O Anticorrelation And HB I. The Na-O anticorrelation in NGC 2808
Eugenio Carretta, Angela Bragaglia, Raffaele Gratton +3
We derived atmospheric parameters and elemental abundances of Fe, O and Na for about 120 red giant stars in the Galactic globular cluster NGC 2808. Our results are based on the ana…
Photometric and spectroscopic study of the intermediate age open cluster NGC 3960
A. Bragaglia, M. Tosi, E. Carretta +3
We present CCD UBVI photometry and high-resolution spectroscopy of the intermediate age open cluster NGC 3960. The colour - magnitude diagrams (CMDs) derived from the photometric d…
Abundances in red giant stars of NGC 2808 and correlations between chemical anomalies and global parameters in globular clusters
Eugenio Carretta
We present the abundance analysis of stars from the tip of the red giant branch (RGB) to below the RGB-bump in the globular cluster NGC 2808, based on high resolution echelle spect…
Metal abundances of RR Lyrae stars in the metal rich globular cluster NGC 6441
G. Clementini, R. G. Gratton, A. Bragaglia +4
Low resolution spectra have been used to measure individual metal abundances of RR Lyrae stars in NGC 6441, a Galactic globular cluster known to have very unusual horizontal branch…
Li in NGC 6752 and the formation of globular clusters
L. Pasquini, P. Bonifacio, P. Molaro +5
Li abundances for 9 Turnoff (TO) stars of the intermediate metallicity cluster ([Fe/H]=-1.4) NGC6752 are presented. The cluster is known to show abundance anomalies and anticorrela…
High-resolution spectroscopy of the old open cluster Collinder 261:abundances of Iron and other elements
Eugenio Carretta, Angela Bragaglia, Raffaele Gratton +1
We present the analysis of high resolution spectra of six red giant stars in the old open cluster Collinder 261. Reddening values for individual stars, derived from the relation be…