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Blue Straggler masses from pulsation properties. I. The case of NGC6541
G. Fiorentino, B. Lanzoni, E. Dalessandro +3
We used high-spatial resolution images acquired with the WFC3 on board HST to probe the population of variable blue straggler stars in the central region of the poorly studied Gala…
The WFPC2 UV Survey: the BSS population in NGC 5824
N. Sanna, E. Dalessandro, F. R. Ferraro +3
We have used a combination of high-resolution Hubble Space Telescope WFPC2 and wide-field ground-based observations, in ultraviolet and optical bands, to study the blue straggler s…
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…
HST absolute Proper Motions of NGC 6681 (M70) and the Sagittarius Dwarf Spheroidal Galaxy
Davide Massari, Andrea Bellini, Francesco R. Ferraro +4
We have measured absolute proper motions for the three populations intercepted in the direction of the Galactic globular cluster NGC 6681: the cluster itself, the Sagittarius dwarf…
Another brick in understanding chemical and kinematical properties of BSSs: NGC 6752
L. Lovisi, A. Mucciarelli, E. Dalessandro +2
We used high-resolution spectra acquired with the multifiber facility FLAMES at the Very Large Telescope of the European Southern Observatory to investigate the chemical and kinema…
Star count density profiles and structural parameters of 26 Galactic globular clusters
P. Miocchi, B. Lanzoni, F. R. Ferraro +6
We used a proper combination of high-resolution HST observations and wide-field ground based data to derive the radial star density profile of 26 Galactic globular clusters from re…