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首页> 外文期刊>Journal of geophysical research >Three-dimensional structure and kinetic features of reconnection exhaust jets
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Three-dimensional structure and kinetic features of reconnection exhaust jets

机译：Three-dimensional structure and kinetic features of reconnection exhaust jets

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abstract_textpThe structure of exhaust jets produced by a magnetic reconnection source region of width approximate to 3R(E) in the out-of-plane direction is investigated with 3-D particle-in-cell simulations. The jet is found to separate into two segments, with the dawnward portion propagating ahead of, and expanding duskward in front of, the duskward one. In such conditions, an orbiting spacecraft would encounter repeated sharp B-z increases. Both segments exhibit east-west structures on scales of a few ion inertia lengths. The narrow J(y) current sheets that produce the sharp B-z increases are associated with electron flows. The ion temperature components T-ixx and T-iyy display markedly different behaviors, with the former exhibiting maxima both downstream and, in some locations, upstream of the front, while the latter exhibits maxima along the y extended front. The maximum load factor EJ at the front is several times larger in 3-D than in 2-D, is concentrated in numerous sub-ion-scale enhancements, and includes a significant ion dissipation contribution./p/abstract_text

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