A Fluid Model for Shock Waves with Reflected Particles

Physics

Scientific paper

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Particle Emission, Solar Wind, Solar Wind Plasma, Sources Of Solar Wind, Planetary Bow Shocks, Interplanetary Shocks

Scientific paper

To understand the role of reflected particles in the fundamental scalings of the structure of a quasi-perpendicular shock, we study a simple one-fluid model for a shock with reflected particles by including appropriate source terms. A reductive perturbation scheme is adopted to obtain the nonlinear evolution equation, yielding a Burgers' equation for the case of low reflection efficiency. The stability of the shock is investigated and it is found that for a large reflection efficiency, the shock is destabilized. Possible implications for injection and acceleration of pickup-ions at a quasi-perpendicular and the heliospheric termination shock are discussed.

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