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Interaction of electron acoustic waves in the presence of superthermal electrons in terrestrial magnetosphere

Masood, W.; Jahangir, R.

We have investigated the propagation and interaction of nonlinear electron acoustic waves (EAWs) in a plasma comprising hot (superthermal) and cold electrons and immobile ions. We have derived the Korteweg-de Vries equation for EAWs in the small amplitude limit. Employing the Hirota's Direct method, we have investigated the multisoliton solutions …

Reconnection from a turbulence perspective

Eastwood, J. P.; Matthaeus, W. H.; Stawarz, J. E. +6 more

The spectral properties associated with laminar, anti-parallel reconnection are examined using a 2.5D kinetic particle in cell simulation. Both the reconnection rate and the energy spectrum exhibit three distinct phases: an initiation phase where the reconnection rate grows, a quasi-steady phase, and a declining phase where both the reconnection r…

Overtaking collisions of double layers and solitons: Tripolar structures and dynamical polarity switches

Olivier, C. P.; Verheest, F.

Overtaking collisions between double layers and solitons are investigated through the numerical simulation of the Gardner equation that governs small-amplitude double layers. The results show that the double layer emerges unaffected after the completion of the collision. However, the soliton that emerges from the collision has the opposite polarit…