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Probing the formation and evolution of the Galactic halo with STREGA@VST

Musella, Ilaria; Marconi, Marcella; Bono, Giuseppe; Brocato, Enzo; Capaccioli, Massimo; Cappellaro, Enrico; Cignoni, Michele; Cioni, M. R.; De Martino, Domitilla; Dall'Ora, Massimo; Di Cecco, A.; Di Criscienzo, M.; Grado, Aniello; Ferraro, I.; Getman, Fedor; Iannicola, G.; Limatola, Luca; Molinaro, Roberto; Moretti, M. I.; Raimondo, G.; Ripepi, VIncenzo; Schipani, Pietro; Stetson, P. B.

STREGA (STRucture and Evolution of the Galaxy) is an ongoing VLT Survey Telescope Guaranteed Time survey, aimed at investigating the mechanisms of formation and evolution of the Galactic Halo on an area of about 150 square degrees. The main programme searches for the signatures of interaction between selected stellar systems and the Galactic Halo. We present the results obtained for a number of Galactici Globular Clusters (Omega Cen, NGC6752, Pal 12 and Pal3) and discuss future perspectives.

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