Non-Jeans instabilities of gravitating media

Details Non-Jeans instabilities of gravitating media Non-Jeans instabilities of gravitating media

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976dossr.231..588m&link_type=abstract

Akademiia Nauk SSSR, Doklady, vol. 231, Nov. 21, 1976, p. 588-591. In Russian.

Astronomy and Astrophysics

Astrophysics

5

Compressible Fluids, Gravitational Effects, Kelvin-Helmholtz Instability, Magnetohydrodynamic Stability, Astrophysics, Plasma Dynamics, Two Dimensional Flow

Scientific paper

It is found that the increments of certain hydrodynamic instabilities of a gravitating medium are greater than those of the Jeans (gravitational) instability of the medium. The hydrodynamic instabilities considered are the Kelvin-Helmholtz and flute instabilities which are modeled by a two-dimensional flow of a gravitating fluid with varying velocity and density. The key feature of the analysis is the investigation of the effect of the gravitational properties of the fluid on the stability of the plane tangential discontinuity which is formed.

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