102 citations · 663 across the 17 of their papers we have counts for
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Searching in the dark: the dark mass content of the Milky Way globular clusters NGC288 and NGC6218
A. Sollima, F. R. Ferraro, L. Lovisi +8
We present an observational estimate of the fraction and distribution of dark mass in the innermost region of the two Galactic globular clusters NGC 6218 (M12) and NGC 288. Such an…
Blue straggler masses from pulsation properties. II. Topology of the Instability Strip
G. Fiorentino, M. Marconi, G. Bono +5
We present a new set of nonlinear, convective radial pulsation models for main sequence stars computed assuming three metallicities: Z=0.0001, 0.001 and 0.008. These chemical compo…
Spinning like a Blue Straggler: the population of fast rotating Blue Straggler stars in Omega Centauri
A. Mucciarelli, L. Lovisi, F. R. Ferraro +3
By using high-resolution spectra acquired with FLAMES-GIRAFFE at the ESO/VLT, we measured radial and rotational velocities for 110 Blue Straggler stars (BSSs) in Omega Centauri, th…
Ceci n'est pas a globular cluster: the metallicity distribution of the stellar system Terzan 5
Davide Massari, A. Mucciarelli, F. R. Ferraro +9
We present new determinations of the iron abundance for 220 stars belonging to the stellar system Terzan 5 in the Galactic bulge. The spectra have been acquired with FLAMES at the…
Blue Straggler Stars in Globular Clusters: a powerful tool to probe the internal dynamical evolution of stellar systems
Francesco R. Ferraro, Barbara Lanzoni, Emanuele Dalessandro +2
This chapter presents an overview of the main observational results obtained to date about Blue Straggler Stars (BSSs) in Galactic Globular Clusters (GCs). The BSS specific frequen…
The helium abundance in the metal-poor globular clusters M30 and NGC6397
A. Mucciarelli, L. Lovisi, B. Lanzoni +1
We present the helium abundance of the two metal-poor clusters M30 and NGC6397. Helium estimates have been obtained by using the high-resolution spectrograph FLAMES at the ESO Very…
Double Blue Straggler sequences in GCs: the case of NGC 362
E. Dalessandro, F. R. Ferraro, D. Massari +8
We used high-quality images acquired with the WFC3 on board the HST to probe the blue straggler star (BSS) population of the Galactic globular cluster NGC 362. We have found two di…
Blue straggler stars in Globular Clusters: chemical and kinematical properties
Loredana Lovisi, Alessio Mucciarelli, Barbara Lanzoni +2
Blue Straggler stars are present in all the properly observed Globular Clusters. They mimic a rejuvenated stellar population and their existence has been a puzzle for many years. W…
Chemical and kinematical properties of BSSs and HB stars in NGC 6397
L. Lovisi, A. Mucciarelli, B. Lanzoni +4
We used three sets of high-resolution spectra acquired with the multifiber facility FLAMES at the Very Large Telescope of the European Southern Observatory to investigate the chemi…
Lithium abundance in the globular cluster M4: from the Turn-Off to the RGB Bump
A. Mucciarelli, M. Salaris, L. Lovisi +4
We present Li and Fe abundances for 87 stars in the GC M4,obtained with GIRAFFE high-resolution spectra. The targets range from the TO up to the RGB Bump. The Li abundance in the T…