E. Dalessandro

TITLE:
Probing the dynamical evolution of stellar aggregates with Blue Straggler Stars - Part 2

ABSTRACT:
Globular Clusters (GCs) provide the largest collection of coeval stellar systems at different stages of 
dynamical evolution.  Blue Straggler Stars (BSS) are the most massive objects luminous enough to be measured 
in a GC and they are thought to form through binary evolution and stellar collisions. Hence, they represent 
the ideal test-particles to probe the internal dynamical evolution of stellar aggregates. 
In the framework of COSMIC-LAB (a project devoted to unveil the complex interplay between dynamics and 
stellar evolution), we will discuss how the presence of double BSS sequences in the color-magnitude diagram 
could testify and even date the occurrence of the cluster core collapse event.