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Structure of the magnetotail current: Kinetic simulation and comparison with satellite observations

The results of a three‐dimensional kinetic simulation of a Harris current sheet are used to show and reproduce the ISEE‐1/2, Geotail, and Cluster observations of the magnetotail current sheet structure. Current sheet flapping, current density bifurcation, and reconnection are explained as the results of the evolution of a Harris current sheet, where lower‐hybrid drift, kink, and tearing instabilities are involved.