Equipartition and mass segregation in a one-dimensional self-gravitating system

Details Equipartition and mass segregation in a one-dimensional self-gravitating system Equipartition and mass segregation in a one-dimensional self-gravitating system

Nov 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997phrvl..79.3561y&link_type=abstract

Physical Review Letters, vol. 79, p. 3561

Astronomy and Astrophysics

Astrophysics

39

Equipartition Theorem, Kinetic Energy, Vlasov Equations, Astrophysics, Particulates, Gravitation, Computerized Simulation, Phase Stability (Materials), Mathematical Models, Relaxation (Mechanics)

Scientific paper

In this paper dynamical simulations of a two-mass-species, one dimensional, self-gravitating system is described. During the simulation, the time averaged kinetic energy, potential energy, and total energy of the two mass species are tracked as the systems evolves. The measure of mass segregation, the average magnitude of the distance from the center of mass of the system for each species is calculated. The simulations show that, following the initial period of violet relaxation, the average kinetic energy and distance for each mass species remain roughly constant for several x 106 time units after which energy begins to transfer between mass species and equipartition and mass segregation set in.

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