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We used high-resolution spectra acquired with the multifiber facility FLAMESat the Very Large Telescope of the European Southern Observatory to investigatethe chemical and kinematical properties of a sample of 22 Blue Straggler Stars(BSSs) and 26 red giant branch stars in the nearby globular cluster NGC 6752.We measured radial and rotational velocities and Fe, O and C abundances.According to radial velocities, metallicity and proper motions we identified 18BSSs as likely cluster members. We found that all the BSSs rotate slowly (lessthan 40 km/s), similar to the findings in 47 Tucanae, NGC 6397 and M30. The Feabundance analysis reveals the presence of 3 BSSs affected by radiativelevitation (showing [Fe/H] significantly higher than that measured in "normal"cluster stars), confirming that element transport mechanisms occur in thephotosphere of BSSs hotter than 8000 K. Finally, BSS C and O abundances areconsistent with those measured in dwarf stars. No C and O depletion ascribableto mass transfer processes has been found on the atmospheres of the studiedBSSs (at odds with previous results for 47 Tucanae and M30), suggesting thecollisional origin for BSSs in NGC 6752 or that the CO-depletion is a transientphenomenon.

Another brick in understanding chemical and kinematical properties of BSSs: NGC 6752