Criterion for propagation of magnetohydrodynamic waves: An equivalence |
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Authors: | R. De Bibhas |
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Affiliation: | 1. Division of Plasma Physics, Royal Institute of Technology, Stockholm, Sweden
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Abstract: | It is shown that the requirement that a magnetohydrodynamic wave propagate over a distance equal to a large number of wavelengths without substantial attenuation is equivalent to the requirement that the lateral velocity of displacement of the field lines far exceed a characteristic velocity. This latter velocity is the velocity of slippage of the field lines with respect to the medium. |
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