Time-dependent interaction between space plasmas and transverse magnetic fields

Details Time-dependent interaction between space plasmas and transverse magnetic fields Time-dependent interaction between space plasmas and transverse magnetic fields

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986itps...14..925p&link_type=abstract

IEEE Transactions on Plasma Science (ISSN 0093-3813), vol. PS-14, Dec. 1986, p. 925-928.

Physics

Space Physics

Interstellar Magnetic Fields, Plasma-Electromagnetic Interaction, Space Plasmas, Time Dependence, Field Strength, Magnetohydrodynamic Stability, Perturbation Theory, Plasma Currents, Rayleigh Scattering

Scientific paper

A time-dependent one-dimensional analytic model is presented describing the dynamics of a plasma and a magnetic field in relative motion to each other. It is found that the interface between the plasma and field deteriorates in a way that is analogous to the Rayleigh-Taylor instability for a plasma in equilibrium. The growth rate of the perturbations is identical to the classical Rayleigh-Taylor (kg) exp 1/2 scaling, except that the gravity, g, is not a constant, but is proportional to the magnetic field strength and the square root of the plasma velocity. Applications to space physics and astrophysical phenomena are presented.

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