Abstract
The existence of Kinetic Alfvén waves (KAWs) in two-fluid plasma dominated by non-Maxwellian electrons has been investigated. Arbitrary amplitude Solitary Kinetic Alfvén waves (SKAWs) and Double Layers (DLs) are developed. Parameter ranges for Plasma Beta, Mach number are seen to vary from higher to lower values in the transition of propagation from DLs with net potential drop to SKAWs showing energetic tailing structures in the whole process. Such phenomena change the energy level in space plasma regions because of the presence of the non-Maxwellian electrons possessing relevant kappa index values. The Sagdeev potential shows that the enhanced level of energy of the waves is higher when the direction of propagation of the waves is nearer to the ambient magnetic field direction.
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