357 citations · 775 across the 4 of their papers we have counts for
4 papers
Na-O Anticorrelation and HB. II. The Na-O anticorrelation in the globular cluster NGC 6752
Eugenio Carretta, Angela Bragaglia, Raffaele Gratton +2
We are studying the Na-O anticorrelation in several globular clusters of different Horizontal Branch (HB) morphology in order to derive a possible relation between (primordial) che…
Proton capture elements in the globular cluster NGC 2808 I. First detection of large variations in Sodium abundances along the Red Giant Branch
Eugenio Carretta, Angela Bragaglia, Carla Cacciari +1
We have used spectra obtained as part of the Science Verification program of the FLAMES multi-object spectrograph mounted on Kueyen (VLT-UT2) to perform an abundance analysis of st…
Distances, ages, and epoch of formation of globular clusters
Eugenio Carretta, Raffaele Gratton, Gisella Clementini +1
We review the results on distances and absolute ages of galactic globular clusters (GCs) obtained after the release of the Hipparcos catalogue. Several methods for the Population I…
Ages of Globular Clusters from Hipparcos Parallaxes of Local Subdwarfs
R. G. Gratton, F. Fusi Pecci, E. Carretta +3
We report here initial but still strongly conclusive results on absolute ages of galactic globular clusters (GGCs). This study is based on high precision trigonometric parallaxes f…