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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Nonlinear Evolution of Radiation Belt Electron Fluxes Interacting With ObliqueWhistler Mode Chorus Emissions
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Nonlinear Evolution of Radiation Belt Electron Fluxes Interacting With ObliqueWhistler Mode Chorus Emissions

机译：非线性演化的电子辐射带通量与ObliqueWhistler交互模式合唱的排放

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摘要

Nonlinear whistler mode wave-particle interaction is one of the processes to generate relativistic electrons in the Earth's outer radiation belt. Applying test particle simulations with a pair of whistler mode chorus emissions, we traced a large number of electrons in various initial conditions along an L = 4.5 magnetic field line to build a set of Green's functions for analyzing evolution of the electron distribution under the chorus emissions. Employing convolution integral for the Green's functions, we tracked the formation of relativistic electron fluxes from an injected energetic electron through interaction with consecutive chorus emissions.We compared the simulation results among a purely parallel wave model and two oblique wave models with wave normal angles gradually increased from 0? to 20? and 60?. Multiple resonances result in a higher probability of nonlinear trapping. Hence, the trapped electrons for the oblique cases are scattered to a wider range of pitch angles than those for the parallel case. Oblique chorus can accelerate 10-30 keV electrons to MeV level rapidly in several wave emission cycles (about 10 s), which is much faster than that of the parallel wave model. The study shows comprehensive evolutions of electron fluxes interacting with oblique chorus emissions through cyclotron and Landau resonances in the outer radiation belt.
机译：非线性惠斯勒波粒相互作用模式是一个过程生成相对论吗电子在地球外辐射带。应用粒子模拟的测试惠斯勒模式合唱排放,我们追踪电子在不同的初始条件在L = 4.5建立一个磁场线进化的格林函数分析下的电子分布的合唱排放。格林函数,我们跟踪的形成相对论性电子通量的注入通过与高能电子连续合唱排放。仿真结果在一个纯粹的平行波模型和两个斜波与波模型正常角度逐渐从0增加?和60吗?。非线性捕获的概率。困倾斜情况下的电子分散到更广泛的俯仰角度并行的情况。10 ~ 30 keV电子加速到兆电子伏水平迅速在几个波发射周期(约10年代)的快得多平行波模型。综合电子通量的演进通过与斜互动合唱排放回旋加速器和朗道外共振辐射带。

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