Physics
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phys...47..561a&link_type=abstract
Physica Scripta, Vol. 47, No. 4, p. 561 - 566
Physics
1
Plasma: Gravitational Instability
Scientific paper
The gravitational instability of an infinite homogeneous viscous thermally conducting plasma of finite electrical conductivity in the presence of Hall currents has been studied here. It is assumed that the plasma is permeated by a horizontal magnetic field. The dispersion relation has been obtained and solved numerically to obtain the dependence of the growth rate of gravitationally unstable modes on the various parameters involved. It is shown that Jeans' criterion remains unchanged in the presence of the effects of thermal conductivity, viscosity, rotation, magnetic resistivity and collisions.
Ali Abbas
Bhatia Prem Kumar
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