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Dynamics in the outskirts of four Milky Way globular clusters: it's the tides that dominate
Zhen Wan, Anthony D. Arnold, William H. Oliver +17
We present the results of a spectroscopic survey of the outskirts of 4 globular clusters -- NGC 1261, NGC 4590, NGC 1904, and NGC 1851 -- covering targets within 1 degree from the…
Kinematic Structure of the Large Magellanic Cloud Globular Cluster System from Gaia eDR3 and Hubble Space Telescope Proper Motions
Paul Bennet, Mayte Alfaro-Cuello, Andrés del Pino +3
We have determined bulk proper motions (PMs) for 31 LMC GCs from Gaia eDR3 and Hubble Space Telescope data using multiple independent analysis techniques. Combined with literature…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XXIII. Proper-motion catalogs and internal kinematics
M. Libralato, A. Bellini, E. Vesperini +17
A number of studies based on data collected by the () GO-13297 program "HST Legacy Survey of Galactic Globular Clusters: Shedding UV…
Hubble Space Telescope Proper Motion (HSTPROMO) Catalogs of Galactic Globular Clusters. VII. Energy Equipartition
Laura L. Watkins, Roeland P. van der Marel, Mattia Libralato +3
We examine the degree of energy equipartition in 9 Galactic globular clusters using proper motions measured with the Hubble Space Telescope. For most clusters in the sample, this i…
The Hubble Space Telescope Survey of M31 Satellite Galaxies I. RR Lyrae-based Distances and Refined 3D Geometric Structure
Alessandro Savino, Daniel R. Weisz, Evan D. Skillman +33
We measure homogeneous distances to M31 and 38 associated stellar systems (16.8 6.0), using time-series observations of RR Lyrae stars taken as part of the Hubbl…
GaiaHub: A method for combining data from the Gaia and Hubble space telescopes to derive improved proper motions for faint stars
Andrés del Pino, Mattia Libralato, Roeland P. van der Marel +6
We present GaiaHub, a publicly available tool that combines measurements with () archival images to derive proper motions (PMs). It increas…