On the clustering phase transition in self-gravitating N-body systems
Anno: 2001
Autori: Cerruti-Sola M., Cipriani P., Pettini M.
Affiliazione autori: Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy;
Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, I-50125 Firenze, Italy;
ICRA, P.le della Repubblica 10, I-65121 Pescara, Italy
Abstract: The thermodynamic behaviour of self-gravitating N-body systems has been worked out by borrowing a standard method from molecular dynamics. The link between dynamics and thermodynamics is made in the microcanonical ensemble of statistical mechanics. Through the computation of basic thermodynamic observables and of the equation of state in the P – V plane, the clustering phase transition appears to be of the second-order type. The dynamical – microcanonical averages are compared with their corresponding canonical ensemble averages, obtained through standard Monte Carlo computations. The latter seem to have completely lost any information about the phase transition. Finally, our results obtained in a
Giornale/Rivista: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume: 328 Da Pagina: 339 A: 352
Parole chiavi: equation of state; stellar dynamics; DOI: 10.1046/j.1365-8711.2001.04896.xCitazioni: 13dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui