Unraveling the Formation Mechanism for the Bursts of Electron Butterfly Distributions: Test Particle and Quasilinear Simulations
Unraveling the Formation Mechanism for the Bursts of Electron Butterfly Distributions: Test Particle and Quasilinear Simulations
复制标题
揭示电子蝴蝶分布爆发的形成机制:测试粒子和拟线性模拟
DOI:
10.1029/2020gl090749
复制
发表时间:
2020
影响因子:
5.2
通讯作者:
Albert, J. M.
中科院分区:
文献类型:
--
作者:
Gan, L.;Li, W.;Ma, Q.;Artemyev, A. V.;Albert, J. M.
Energetic electron dynamics is highly affected by plasma waves through quasilinear and/or nonlinear interactions in the Earth's inner magnetosphere. In this letter, we provide physical explanations for a previously reported intriguing event from the Van Allen Probes observations, where bursts of electron butterfly distributions at tens of keV exhibit remarkable correlations with chorus waves. Both test particle and quasilinear simulations are used to reveal the formation mechanism for the bursts of electron butterfly distribution. The test particle simulation results indicate that nonlinear phase trapping due to chorus waves is the key process to accelerate electrons to form the electron butterfly distribution within ~30 s, and reproduces the observed features. Quasilinear simulation results show that although the diffusion process alone also contributes to form the electron butterfly distribution, the timescale is slower. Our study demonstrates the importance of nonlinear interaction in rapid electron acceleration at tens of keV by chorus waves.
登录
查看更多内容
DOI:
10.1016/j.physd.2018.12.007
发表时间:
2018
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
A. Artemyev;A. Neishtadt;A. Vasiliev
通讯作者:
A. Vasiliev
影响因子:
2.8
作者:
Li, W.;Hudson, M. K.
通讯作者:
Hudson, M. K.
影响因子:
0.6
作者:
A. Demekhov;V. Trakhtengerts;M. Rycroft;D. Nunn
通讯作者:
D. Nunn
DOI:
10.1029/2006ja012243
发表时间:
2007-06
期刊:
--
影响因子:
--
作者:
Y. Omura;D. Summers;H. Usui
通讯作者:
Y. Omura;D. Summers;H. Usui
影响因子:
5.2
作者:
Gan, L.;Li, W.;Bortnik, J.
通讯作者:
Bortnik, J.