Abstract
Dissipative structures in hot interplanetary plasma are considered, which are formed due to a resonance interaction of long-wave longitudinal perturbations with nonlinear Alfven waves propagating along the magnetic field. The form of the structures is found by averaging known solutions of the derivative Schrodinger equation over the fast field phase. It is established that the dissipative structures are shaped as smooth parts of the envelope of the magnetic field, and that they are shock wave trains separated by rotational discontinuities. An equation is found which describes the structure of rotational discontinuities, and a simple step-like solution is found which fits well the obtained structures. These solutions agree with observations of rotational discontinuities in interplanetary plasma.
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