Loredana Lovisi, Alessio Mucciarelli, Barbara Lanzoni, Francesco R. Ferraro, Emanuele Dalessandro
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. We performed an extensive spectroscopic survey of the surface abundances and the rotational velocities of Blue Straggler stars in different Globular Clusters, by using the high-resolution spectrograph FLAMES@VLT in the UVES+GIRAFFE combined mode. In this contribution we show our main results obtained for M4, {\omega} Centauri and M30.
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http://arxiv.org/abs/1301.3295
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