Speaker
Francesco Sylos Labini
(ROMA1)
Description
An out-of-equilibrium, isolated and uniform over-density of massive particles relax towards a quasi-stationary state close to virial equilibrium through a monolithic collapse driven by its own mean gravitational field. If the system initially breaks spherical symmetry and has some angular momentum such a dissipationless dynamics may give rise to a disk with persistent far out-of-equilibrium structures like spiral arms, bars and/or rings. By considering several numerical experiments of a simple toy model, we also discuss the combined effect of gravitational and gas dynamics in such an out-of-equilibrium framework.
Primary author
Francesco Sylos Labini
(ROMA1)
