538 citations
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40 papers · 1 filter
Disruption of a Giant: Spectroscopic Identification of Members in the Periphery and Tidal Tails of Centauri
P. B. Kuzma, A. M. N. Ferguson, A. L. Varri +1
Centauri ( Cen, NGC\,5139) is one of the most enigmatic globular clusters in the Milky Way, with the recent detection of tidal tails adding further to its complexity. We rep…
Evolution of the kinematic properties of rotating multiple-population globular clusters
Ethan B. White, Enrico Vesperini, Emanuele Dalessandro +1
Globular clusters (GCs) host multiple stellar populations differing in their chemical and dynamical properties. A number of models for the formation of multiple populations predict…
Dynamics of star clusters with tangentially anisotropic velocity distribution
Václav Pavlík, Douglas C. Heggie, Anna Lisa Varri +1
Recent high-precision observations with HST and Gaia enabled new investigations of the internal kinematics of star clusters (SCs) and the dependence of kinematic properties on the…
Collisionless relaxation from near equilibrium configurations: Linear theory and application to tidal stripping
Simon Rozier, Raphaël Errani
Placed slightly out of dynamical equilibrium, an isolated stellar system quickly returns towards a steady virialized state. We study this process of collisionless relaxation using…
Linking the Internal Properties of Infant Globular Clusters to their Formation Environments
Frederika Phipps, Sadegh Khochfar, Anna Lisa Varri +1
We investigate the formation of infant globular cluster (GC) candidates in high-resolution cosmological simulations from the First Billion Years (FiBY) project. By analysing the ev…
The Effect of Stars on the Dark Matter Spike Around a Black Hole: A Tale of Two Treatments
Stuart L. Shapiro, Douglas C. Heggie
We revisit the role that gravitational scattering off stars plays in establishing the steady-state distribution of collisionless dark matter (DM) around a massive black hole (BH).…