Origin of drift‐periodic echoes in outer‐zone electron flux
Origin of drift‐periodic echoes in outer‐zone electron flux
复制标题
外层电子通量中漂移周期回波的起源
DOI：
10.1029/ja074i001p00159
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发表时间：
1969
影响因子：
--
通讯作者：
A. Eviatar
中科院分区：
文献类型：
--
作者：
H. R. Brewer;M. Schulz;A. Eviatar
在ATS 1上观测到的赤道电子随时间变化的通量（0.4兆电子伏至2.2兆电子伏）经常表现出漂移周期性结构，可以追溯到磁层的突然膨胀或压缩。磁层扰动以不对称的方式在漂移壳层之间重新分配高能电子，这种中午和午夜之间的空间不对称性揭示了电子随后漂移经过观测者时粒子通量的时间变化。这种高能电子的方位角聚束动力学的数学模型揭示了漂移壳层之间电子再分布的微观结构，并定性地指出了这种微观结构与粒子在L.
The time-dependent flux of equatorial electrons (0.4 Mev ≲ E ≲ 2.2 Mev) observed on ATS 1 often exhibits drift-periodic structures that can be traced back to a sudden expansion or compression of the magnetosphere. The magnetospheric disturbance redistributes the energetic electrons among drift shells in an asymmetrical manner, and this spatial asymmetry between noon and midnight reveals itself as a temporal variation in particle flux as the electrons subsequently drift past the observer. A mathematical model for the dynamics of this azimuthal bunching of energetic electrons reveals the microstructure of the redistribution of electrons among drift shells and indicates qualitatively the relation of this microstructure to the diffusion of particles across L.