Gravity and thermodynamics in globular clusters: new results by numerical simulations
(University of Rome La Sapienza)
Aula Conversi (Laboratori Nazionali di Frascati)
Laboratori Nazionali di Frascati
New developments on N-body simulations for glubular clusters (GCs) are presented. These
results suggest a unique curve of the GC evolution in which the thermodynamics play an important role.
The critical value of central gravitational potential (w0) after that the systems cannot be described by a King distribution function seems to be the same for every cluster and in accordance with the phenomenon of gravothermal catastrophe.
The results obtained are coherent with the theory of the effective potential arising from the presence of tidal interactions between the cluster and the hosting galaxy.