667 citations · 6.9k across the 171 of their papers we have counts for
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Formation and Dynamical Evolution of Multiple Stellar Generations in Globular Clusters
Annibale D'Ercole, Enrico Vesperini, Francesca D'Antona +2
Some globular clusters are observed to host a population of second generation (SG) stars which show chemical anomalies and must have formed from gas containing matter processed in…
Beowulf Analysis Symbolic INterface BASIN: Interactive Parallel Data Analysis for Everyone
Enrico Vesperini, David M. Goldberg, Stephen L. W. McMillan +2
The advent of affordable parallel computers such as Beowulf PC clusters and, more recently, of multi-core PCs has been highly beneficial for a large number of scientists and smalle…
A dynamical origin for early mass segregation in young star clusters
Stephen L. W. McMillan, Enrico Vesperini, Simon F. Portegies Zwart
Some young star clusters show a degree of mass segregation that is inconsistent with the effects of standard two-body relaxation from an initially unsegregated system without subst…
The Ages of Globular Clusters in NGC 4365 Revisited with Deep HST Observations
Arunav Kundu, Stephen E. Zepf, Maren Hempel +6
We present new Hubble Space Telescope (HST)-NIC3, near-infrared H-band photometry of globular clusters (GC) around NGC 4365 and NGC 1399 in combination with archival HST-WCPC2 and…
Modeling the dynamical evolution of the M87 globular cluster system
E. Vesperini, S. E. Zepf, A. Kundu +1
We study the dynamical evolution of the M87 globular cluster system (GCS) with a number of numerical simulations. We explore a range of different initial conditions for the GCS mas…
Perturbations of spherical stellar systems during fly-by encounters
E. Vesperini, Martin D. Weinberg
We study the internal response of a galaxy to an unbound encounter and present a survey of orbital parameters covering typical encounters in different galactic environments. Overal…
Gravothermal Catastrophe in Anisotropic Spherical Systems
M. Magliocchetti, G. Pucacco, E. Vesperini
In this paper we investigate the gravothermal instability of spherical stellar systems endowed with a radially anisotropic velocity distribution. We focus our attention on the effe…
On the effects of dynamical evolution on the initial mass function of globular clusters
E. Vesperini, D. C. Heggie
In this paper we show the results of a large set of N-body simulations modelling the evolution of globular clusters driven by relaxation,stellar evolution,disk shocking and includi…
On the evolution of the galactic globular cluster system
E. Vesperini
In this paper we address the issue of the origin of some observational properties of the galactic globular cluster system. After a preliminary study of some general properties of t…