Electron acceleration by Landau resonance with whistler mode wave packets. Progress report
Electron acceleration by Landau resonance with whistler mode wave packets. Progress report
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通过朗道共振与哨声模式波包的电子加速。
DOI：
10.1029/gl010i008p00603
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
L. Reinleitner
中科院分区：
文献类型：
--
作者：
D. Gurnett;L. Reinleitner
最近对与哨声模式合唱发射相关的静电波的观测提供了证据，证明电子正被与合唱的朗道共振相互作用所俘获。本文讨论了哨声模波包中电子在朗道共振中的捕获、加速和逃逸。我们发现，加速既可以由非均匀效应发生，也可以由色散效应发生。获得的最大能量由陷阱和逃逸发生的点控制。如果俘获点和逃逸点之间的波包频率或磁场强度增加，则可能发生较大的能量变化。讨论了各种诱捕和逃逸机制。
Recent observations of electrostatic waves associated with whistler mode chorus emissions provide evidence that electrons are being trapped by Landau resonance interactions with the chorus. In this paper we discuss the trapping, acceleration and escape of electrons in Landau resonance with a whistler mode wave packet. We show that acceleration can occur by both inhomogeneous and dispersive effects. The maximum energy gained is controlled by the points where trapping and escape occur. Large energy changes are possible if the frequency of the wave packet or the magnetic field strength increase between the trapping and escape points. Various trapping and escape mechanisms are discussed.