Whistler interactions with density gradients in the magnetosphere

Woodroffe J.R.; Streltsov A.V.

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Whistler interactions with density gradients in the magnetosphere

机译：惠斯勒与密度梯度的交互磁气圈

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摘要

Very-low frequency whistler-mode waves are frequently observed in the equatorial magnetosphere. Large amplitude whistlers, capable of rapidly accelerating electrons to large energies, are typically observed to propagate at highly oblique angles relative to the background magnetic field. In this paper, we discuss a potential mechanism for the conversion of moderately oblique whistlers to highly oblique whistlers on a transverse gradient of the background plasma. We offer a theoretical explanation for this process and illustrate its operation using numerical simulations. This effect has been previously observed in laboratory experiments and it also provides a straightforward explanation for observations of highly oblique whistlers in magnetospheric plasmas.

机译：甚低频whistler-mode波经常观察到赤道磁气圈。迅速加速电子的大能量,通常观察到传播高度倾斜的角度相对于背景磁场。潜在机制的转换中等高度斜斜吹口哨的人横向梯度的啸叫声背景等离子体。解释这个过程及其说明使用数值模拟操作。效应在实验室之前已经观察到实验,它还提供了一个简单的解释观察到的高度斜在磁性层的啸叫声等离子体。

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来源
《Journal of Geophysical Research, A. Space Physics: JGR》 |2013年第1期|167-172|共6页
作者
Woodroffe J.R.; Streltsov A.V.;
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作者单位

Department of Physical Sciences, Embry-Riddle Aeronautical University, Daytona Beach, FL 32128, United States;

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正文语种英语
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关键词
whistlers; Pachycephalinae; Density gradientsOblique;

机译：吹口哨的人;Pachycephalinae gradientsOblique密度;

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Whistler interactions with density gradients in the magnetosphere

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