Solitary structures with ion and electron thermal anisotropy

Abstract

Formation of electrostatic solitary structures are analysed for a magnetised plasma with ion and electron thermal anisotropies. The ion thermal anisotropy is modelled with the help of the Chew-Goldberger-Low (CGL) double adiabatic equations of state while the electrons are treated as inertia-less species with an anisotropic bi-Maxwellian velocity distribution function. A negative electron thermal anisotropy $(T_{e\perp }/T_e\parallel >1)$ is found to help form large amplitude solitary structures which are in agreement with observational data.

15 pages, 4 figures

References in corpus (2)

• Magnetic Braiding and Parallel Electric Fields
• Ion-acoustic solitons in warm magnetoplasmas with super-thermal electrons