Gravitational instability for some astrophysical systems

Details Gravitational instability for some astrophysical systems Gravitational instability for some astrophysical systems

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.183..215s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 183, no. 2, Sept. 1991, p. 215-224.

Astronomy and Astrophysics

Astrophysics

4

Gravitational Fields, Magnetohydrodynamic Stability, Nonuniform Magnetic Fields, Particle Collisions, Porosity, Space Plasmas, Equations Of Motion, Ionized Gases, Jeans Theory, Neutral Gases

Scientific paper

The gravitational instability of an infinite homogeneous self-gravitating mixture through porous medium in the presence of a variable horizontal magnetic field varying in vertical directions has been considered to include, separately, the effects due to suspended particles and collisions between ionized and neutral components. The dispersion relations in both cases have been obtained. It has been found that Jean's criterion of instability holds good even if the effects due to suspended particles, collisions, porosity, and variable magnetic field are considered.

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