Magneto-acoustic oscillations in a current carrying plasma column
- 1 January 1978
- journal article
- Published by IOP Publishing in Plasma Physics
- Vol. 20 (1), 33-44
- https://doi.org/10.1088/0032-1028/20/1/003
Abstract
The forced radial magneto-acoustic oscillations in a partially-ionized, low- beta plasma column with non-uniform densities, temperature and axial current are investigated theoretically. By using a method of successive approximations to include resistive and viscous dissipations, the description of these oscillations has been reduced to the solution of a second order differential equation in the axial magnetic field disturbance bz(r). A detailed numerical solution is presented for a case where the plasma carries a force-free current and the dissipation is resistive. The steady current enhances the magnetic field amplitudes at magneto-acoustic resonance.Keywords
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