The dust disk dynamics in week-nonlinear regime
Abstract
We investigate the problem of self-gravitating dust disk dynamics in a static state taking into account nonlinear effects. For this purpose Schrodinger-type equation including the mass conservation law is used for the whole description of hydrodynamic flows of self-gravitating dust. We have shown a purely hydrodynamic mechanism of ring formation in the radial direction by taking into account nonlinearity in the lowest order of expansion parameter, which determines an order of magnitude of flow.
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