The warp instability of a non-linear rotating model of disk self-gravitating systems

Abstract A model of a non-linear pulsating disc was constructed. The distribution function is given by Notation is the same as in another Nuritdinov's contribution in this issue. The warp oscillations of the model were studied. A non-stationary dispersion equation was obtained. The dependence of the critical virial ratio (2T/∣U∣)0 On the rotation parameter was found for cupola and asymmetric warp oscillations.

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