109 citations · 685 across the 21 of their papers we have counts for
8 papers · 1 filter
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…
The Bologna Open Cluster Chemical Evolution (BOCCE) Project: midterm results from the photometric sample
Angela Bragaglia, Monica Tosi
We describe a long term project aimed at deriving information on the chemical evolution of the Galactic disk from a large sample of open clusters. The main property of this project…
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…
The metal abundance distribution of the oldest stellar component in the Sculptor dwarf spheroidal galaxy
G. Clementini, V. Ripepi, A. Bragaglia +3
(abridged): Low resolution spectroscopy obtained with FORS2 at the Very Large Telescope (VLT) has been used to measure individual metal abundances ([Fe/H]) for 107 RR Lyrae stars,…
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…