Ring Current Composition and Sources
Ring Current Composition and Sources
复制标题
环流成分和来源
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
Donald J. Williams
中科院分区：
文献类型：
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作者：
Donald J. Williams
环电流是磁层能量的主要储存器。本文提出了一种观点，表明人们对它的组成和最终来源知之甚少。直接成分观测只存在于环电流能量密度分布的低能（~ 15 keV）和高能（~ 11 MeV）尾部。环电流能量密度（~20-250 keV）的大部分组成尚未直接测量，也没有关于环电流能量密度分布峰值（50-100 keV）的信息（直接测量或推断）。结果表明，显着的加速度超过所提供的源需要建立风暴时间环电流，而不管考虑的源。本文总结了从~ 0.5 keV到几MeV能量范围内的环电流成分的直接观测和推断技术的结果。可能的来源和环电流的发展进行了讨论。
The ring current is a major magnetospheric energy reservoir. A view is developed in this paper that shows how little is known of its composition and ultimate source(s). Direct composition observations exist only in the low (≲ 15 keV) and high (≳ 1 MeV) energy tails of the ring current energy density distribution. The composition of the bulk of the ring current energy density (~20–250 keV) has not been directly measured, and no information (direct measurements or inferences) exists concerning the peak (50–100 keV) of the ring current energy density distribution. It is shown that significant acceleration beyond that provided by the source is required to establish the storm time ring current irrespective of the source considered. This paper summarizes the results of direct observations and inference techniques concerned with ring current composition through the energy range from ~ 0.5 keV to several MeV. Possible sources and ring current development are discussed.