High Mach Number Quasi‐Perpendicular Shocks: Spatial Versus Temporal Structure

Abstract Planetary bow shocks are a natural laboratory for investigating the physics of collisionless shocks. Given that spacecraft observations provide us with information regarding temporal structure shock, often multi‐spacecraft missions and kinetic simulations needed to discern nature dissipation processes at shock resulting spatial structure. Such an approach through ISEE mission 1.5‐D hybrid (kinetic ions fluid electrons) led understanding supercritical quasi‐perpendicular In such shocks, reflection fraction incident their gyration back into is part process in formation foot, ramp, overshoot, undershoot. More recently, high Mach number show seemingly turbulent time series data. this study, we use results 2.5‐D global simulation demonstrate major differences between The same as while consists fast magnetosonic pulses. reason difference attributed generation surface waves which partial encounters spacecraft. shown be generated by large velocity shears present due ion upstream.