We develop models of globular clusters (GCs) with a different approach by applying thermodynamic principles to a Boltzmann distribution function, with an Hamiltonian function which contains an effective potential depending on the kinetic energy of the stars, due to the effect of tidal interactions induced by the hosting galaxy. The Hamiltonian function is solution of the Fokker-Planck equation solved in a different way with respect to the King approach. Interesting results implying a different caloric curve for the analysis of the evolution of GCs are presented.
A new point of view in the analysis of equilibrium and dynamical evolution of globular clusters / Merafina, Marco. - In: MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA. - ISSN 1824-016X. - ELETTRONICO. - 87:4(2016), pp. 583-587.
A new point of view in the analysis of equilibrium and dynamical evolution of globular clusters
MERAFINA, Marco
Primo
Writing – Original Draft Preparation
2016
Abstract
We develop models of globular clusters (GCs) with a different approach by applying thermodynamic principles to a Boltzmann distribution function, with an Hamiltonian function which contains an effective potential depending on the kinetic energy of the stars, due to the effect of tidal interactions induced by the hosting galaxy. The Hamiltonian function is solution of the Fokker-Planck equation solved in a different way with respect to the King approach. Interesting results implying a different caloric curve for the analysis of the evolution of GCs are presented.File | Dimensione | Formato | |
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