作者: D. Burgess
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摘要: In seeking to explain the events observed close Earth's bow shock known as hot, diamagnetic cavities (HDC), or active current sheets (ACS), attention has focused on microphysics of interaction a magnetic field directional discontinuity and collisionless, supercritical shock. Here we investigate case tangential (TD) convecting into at some arbitrary angle. As first stage adopt an approach in which test particles represent ions specularly reflected front. Widely different behavior is possible depending sense ion gyration relative TD. Particles can be injected plane TD so that they travel upstream trapped This implies ACS events, presumed result solar wind with large density component, are detached from For other geometries, interact but stay shock, implying modifications The deprive limited spatial region downstream reflected-gyrating population (necessary for quasi-perpendicular steady), anticipate where will not equilibrium, consequently strong reflection may occur. detailed such situation must investigated self-consistent simulations.