Large amplitude electromagnetic solitons in a fully relativistic magnetized electronpositronpair plasma
Abstract
Nonlinear propagation of purely stationary large amplitude electromagnetic (EM) solitary waves in a magnetized electronpositron (EP) plasma is studied using a fully relativistic twofluid hydrodynamic model which accounts for physical regimes of both weakly relativistic (P ≪nmc^{2}) and ultrarelativistic (P ≫nmc^{2}) random thermal energies. Here, P is the thermal pressure, n the number density and m the mass of a particle, and c is the speed of light in vacuum. While both the subAlfvénic and superAlfvénic solitons coexist in the weakly relativistic regime, the ultrarelativistic EP plasmas in contrast support only the subAlfvénic solitons. Different limits of the Mach numbers and soliton amplitudes are also examined in these two physical regimes.
 Publication:

Advances in Space Research
 Pub Date:
 November 2020
 DOI:
 10.1016/j.asr.2020.07.040
 arXiv:
 arXiv:2005.06288
 Bibcode:
 2020AdSpR..66.2265B
 Keywords:

 Electronpositron plasma;
 Relativistic plasma;
 Alfvénic soliton;
 Pseudopotential;
 Physics  Plasma Physics
 EPrint:
 11 pages, 7 figures