Nondissipative gravitational turbulence in the expanding Universe
Abstract
The nonlinear stage of development of a Jeans instability in the expanding Universe is investigated. It is shown that, in a growing gravitational mode, the relation between the density and velocity is such that, during the nonlinear stage, the maximum of the initial density develops into a selftrapped nondissipative gravitational singularity (NGS). The NGS has definite scaling relationships for the gas density, velocity and field potential in the vicinity of the singularity.
 Publication:

Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki
 Pub Date:
 October 1988
 Bibcode:
 1988ZhETF..94....5G
 Keywords:

 Astrophysics;
 Big Bang Cosmology;
 Gravitation Theory;
 Turbulence;
 Universe;
 Fluctuation Theory;
 Gas Density;
 Hierarchies;
 Modes;
 Nonlinearity;
 Singularity (Mathematics);
 Astrophysics