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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Contribution of nonadiabatic ions to the cross-tail current in an O+ dominated thin current sheet
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Contribution of nonadiabatic ions to the cross-tail current in an O+ dominated thin current sheet

机译：贡献的非绝热的离子cross-tail电流在一个O +薄为主当前的表

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During storm times, O+ can dominate both the pressure and the density in the plasma sheet. Because of the contribution from ion outflow, the plasma sheet is already oxygen-rich prior to substorm onset. At substorm onset the fraction of O+ contributing to the pressure and density increases. In the O+ dominated thin current sheet the O~+ ions are observed to stream from dawn to dusk across the tail, as predicted for nonadiabatic ions by Speiser (1965). We calculate the current contribution from these ions and find that they carry about 5–10% of the cross-tail current. During a nonstormtime substorm the general behavior of the O~+ is the same. However, because there is less O~+ present, the O~+ never dominates over H~+, and the contribution to the cross-tail current is even less.
机译：在风暴的时候,O +可以主宰的压力和等离子体的密度表。因为离子外流的贡献,之前已经富氧等离子体表亚暴爆发。O +造成压力和密度增加。O ~ +离子从黎明到观察到流黄昏的尾巴,不出所料非绝热的离子通过Speiser(1965)。从这些离子和发现当前的贡献他们带着cross-tail的5 - 10%电流。O ~ +的一般行为是相同的。因为减少O ~ +, O ~ +永远主导/ H ~ +和贡献cross-tail电流更少。

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