Vortex solitons in self-gravitating plasma

Details Vortex solitons in self-gravitating plasma Vortex solitons in self-gravitating plasma

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phys...42..463j&link_type=abstract

Physica Scripta (ISSN 0031-8949), vol. 42, no. 4, Oct. 1990, p. 463-468.

Physics

9

Gravitational Effects, Interstellar Gas, Nonlinear Equations, Plasma Clouds, Solitary Waves, Vortices, Gravitational Collapse, Interstellar Magnetic Fields

Scientific paper

Using a two-fluid description of a large, magnetized, self-gravitating plasma cloud, a fully nonlinear system of equations is derived for electrostatic and gravitational potentials. In the regime when nonlinear effects, arising from the particle drift, are dominating over the gravitational condensation, a stationary solution is obtained in the form of traveling double vortex, with the charge separation being localized to the vortex core, and its immediate surroundings. The density perturbation has a long range spatial extend, in the form of alternating condensations and rarefactions with the typical scale length of the order of Jeans' critical length.

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