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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 731473.0, MPI für Astronomie / Publikationen_mpia
HST proper motions in Galactic globular clusters
Authors:Watkins, L. L.; van der Marel, R. P.; Bellini, A.; Baldwin, A. T.; Bianchini, P.; Anderson, J.
Date of Publication (YYYY-MM-DD):2016
Title of Journal:Memorie della Societa Astronomica Italiana
Volume:87
Issue / Number:4
Start Page:610
End Page:613
Audience:Not Specified
Abstract / Description:Proper motions (PMs) are crucial to fully understand the internal dynamics of globular clusters (GCs). To that end, the \textit{Hubble Space Telescope (HST)} Proper Motion (HSTPROMO) collaboration has constructed large, high-quality PM catalogues for 22 Galactic GCs. We highlight some of our exciting recent results: the first directly-measured radial anisotropy profiles for a large sample of GCs; the first dynamical distance and mass-to-light (M/L) ratio estimates for a large sample of GCs; and the first dynamically-determined masses for hundreds of blue-straggler stars (BSSs) across a large GC sample.
Free Keywords:globular clusters: general; proper motions; stars: blue stragglers; stars: distances; stars: kinematics and dynamics; stars: luminosity function; mass function
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0037-8720
URL:http://adsabs.harvard.edu/abs/2016MmSAI..87..610W
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