# The effect of parallel electric field in shock waves on the acceleration of relativistic ions, electrons, and positrons

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Positron acceleration in oblique shock waves is studied with relativistic, electromagnetic, particle simulations with full particle dynamics. In the simulations, some positrons have been accelerated to energies Î³âˆ¼600, where Î³ is the Lorentz factor. The electric field parallel to the...

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Electron and ion acceleration mechanisms during the coalescence process of two adjacent magnetic loops through cohelicity and counterhelicity magnetic reconnection are investigated by using a two-dimensional, electromagnetic, and relativistic particle-in-cell (PIC) simulation. Three types of...

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The electromagnetic field induced by shock compression of a current-carrying conductor is shown to consist of two current waves. One propagates in the uncompressed material at the shock-wave velocity. The other is due to current inward diffusion. As the shock wave propagates, the current passes...

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We investigate the phenomena that accompany the acceleration of a free plasma piston (without a striker) in the electromagnetic rail accelerator channel filled with different gases (argon, helium). An intense glow appears in the shock-compressed layer (SCL) in the case of strong shock waves that...

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The positron acoustic shock and solitary wave are explored in nonextensive electron-positron-ion plasma. The plasma system under-consideration, consists of a classical positron beam, q distributed electrons and positively charged bulky ions constitute a neutralizing background. The nonlinear...

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Ion acoustic shock waves in dissipative plasmas are studied. The target medium contains Relativistic ions, nonthermal electrons and positrons with Maxwell-Boltzmann distribution. Kinematic viscosity among the plasma constituents has been considered. The effects of kinematic viscosity on the...

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A weakly nonlinear analysis is carried out to derive a Korteweg-de Vries-Burgers-like equation for small, but finite amplitude, ion-acoustic waves in a dissipative plasma consisting of weakly relativistic ions, thermal positrons and nonextensive electrons. The travelling wave solution has been...

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The behavior of quantum dust ion acoustic soliton and shocks in a plasma including inertialess quantum electrons and positrons, classical cold ions, and stationary negative dust grains are studied, using arbitrary amplitude approach. The effect of dissipation due to viscosity of ions is taken...