The Hubble Space Telescope UV legacy survey of galactic globular clusters: The internal kinematics of the multiple stellar populations in NGC 2808
Numerous observational studies have revealed the ubiquitous presence of multiple stellar populations in globular clusters and cast many difficult challenges for the study of the formation and dynamical history of these stellar systems. In this Letter we present the results of a study of the kinematic properties of multiple populations in NGC 2808 based on high-precision Hubble Space Telescope proper-motion measurements. In a recent study, Milone et al. identified five distinct populations (A-E)...[Show more]
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|Source:||Astrophysical Journal Letters|
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