Transport and entry of plasma clouds/jets across transverse magnetic discontinuities: Three-dimensional electromagnetic particle-in-cell simulations
作者： Gabriel Voitcu , Marius Echim
DOI: 10.1002/2015JA021973
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摘要: In this paper we use three-dimensional electromagnetic particle-in-cell simulations to investigate the interaction of a small-Larmor radius plasma cloud/jet with transverse non-uniform magnetic field typical tangential discontinuity in parallel geometry. The simulation setup corresponds an idealized, yet relevant, magnetospheric configuration likely be observed at magnetopause during northward orientation interplanetary field. numerical are adapted study kinetic effects and their role on transport entry localized jets similar those identified inside Earth's magnetosheath propagating towards magnetopause. reveal formation polarization electric main bulk cloud that enables its forward across jet is able penetrate transition region when height barrier does not exceed certain critical threshold. Otherwise, along injection direction stopped before full penetration Moreover, pushed back simultaneously deflected perpendicular plane Our evidence physical processes advocated previously by theoretical model impulsive revealed laboratory experiments.
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