MIKiS: the ESO-VLT Multi-Instrument Kinematic Survey of Galactic Globular Clusters

Francesco R. Ferraro
2019 Zenodo  
Here I present first results from the ESO-VLT Multi-Instrument Kinematic Survey of Galactic Globular Clusters, a survey specifically designed to provide line-of-sight velocities of hundreds individual stars over the entire radial extension of a selected sample of globulars. The survey allows the first kinematical exploration of the innermost regions of high- density clusters. Moreover, once combined with proper motion measurements (from multi-epoch HST observations and from Gaia), it will
more » ... e the full 3D view of the velocity space of each system. Long lasting open issues such as the accurate shape of the velocity dispersion profiles, the existence of systemic rotation and orbital anisotropy (and thus the level of relaxation), and the controversial presence of intermediate-mass black holes in star clusters will be finally addressed, with crucial impact on our understanding of the formation and evolutionary processes of globular clusters and their interactions with the Galactic tidal field.
doi:10.5281/zenodo.2595129 fatcat:6iz73i42nnawlicbhaoir3rrcm