Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.201...15a&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 201, no. 1, p. 15-27.
Astronomy and Astrophysics
Astrophysics
3
Hall Effect, Magnetic Field Configurations, Magnetohydrodynamic Stability, Magnetoresistivity, Plasma Currents, Plasma-Electromagnetic Interaction, Cosmic Plasma, Plasma Density, Space Plasmas
Scientific paper
The effect of Hall currents have been studied on the instability of a stratified layer of a self-gravitating finitely conducting plasma of varying density. It is assumed that the plasma is permeated by a variable horizontal magnetic field stratified vertically. The stability analysis has been carried out for longitudinal mode of wave propagation. The solution has been obtained through integral equation approach. The dispersion relation has been derived and solved numerically. It is found that both the Hall currents and finite conductivity have a destabilizing influence on the growth rate of the unstable mode of disturbance.
Ali Ahsan
Bhatia Prem Kumar
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