Low-frequency nonlinear stationary waves and fast shocks: Hydrodynamical description

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29 Scopus citations

Abstract

Stationary one-dimensional nonlinear waves in two-fluid hydrodynamics are studied analytically in the assumption of polytropic pressure and massless electrons. Particular attention is paid to the presence of soliton solutions, which exist when the asymptotic plasma velocity is in the range v2+<v2<v2F or v2SL<v2<v2_, where vSL, VI, VF, and vS are the slow, intermediate, fast and sound speeds, respectively, and v- = min(vS,vI), v+ = max(vS,vI). A general nonlinear solution is derived in the parametric representation. Inclusion of weak dissipation changes qualitatively the behavior of solutions allowing for fast shock-like solutions. A generalized expression for the whistler precursor wavelength is derived.

Original languageEnglish
Pages (from-to)127-132
Number of pages6
JournalPhysics of Plasmas
Volume5
Issue number1
DOIs
StatePublished - 1 Jan 1998

ASJC Scopus subject areas

  • Condensed Matter Physics

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