On the issue of gravitational instability of the protoplanetary disk of the Sun. Part I. Formulation of the problem
The paper presents a brief overview of the results of research on the mediums gravitational instability. A physico-mathematical model of the initial stage of the Sun protoplanetary disk evolution is proposed on the base of analysis of the main models of the solar planetary system formation.
protoplanetary disk, gravitational instability, own gravitational field, numerical simulation, dispersion equation, planetary system