Imprints of evolution on the internal kinematics of Globular Clusters. Issue Volume 14:Issue S351(2019) (May 2019)

• Record Type: Journal Article
• Authors: Watkins, Laura L.; van der Marel, Roeland P.; Bellini, Andrea; Libralato, Mattia; Anderson, Jay
• Editors: Bragaglia, Angela; Davies, Melvyn; Sills, Alison; Vesperini, Enrico
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S351(2019)
• Page Start: 544
• Page End: 548
• Publication Date: 2019-05
• Subjects: astrometry, -- globular clusters: general, -- stars: kinematics, -- stellar dynamics; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319007257
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Globular clusters are collisional systems, meaning that the stars inside them interact on timescales much shorter than the age of the Universe. These frequent interactions transfer energy between stars and set up observable trends that tell the story of a cluster's evolution. This contribution focuses on what we can learn by studying velocity anisotropy and energy equipartition in globular clusters with Hubble Space Telescope proper motions.