We evaluate energetic electron scattering in pitch angle and energy using realistic magnetic field and density models due to whistler mode chorus waves in Jupiter's magnetosphere and study their dependences on various wave and background parameters. We calculate the bounce‐averaged diffusion coefficients by considering the latitudinal variation of total electron density and ambient magnetic field intensity, using the VIP4 internal magnetic field and CAN current sheet model. The electron phase space density evolution due to chorus waves is simulated at M shell of 10, using the central wave frequency at 0.1f _ce and wave amplitude of 30 pT. Under the typical values of the ratio between the plasma frequency and electron cyclotron frequency, chorus waves could cause fast pitch angle scattering loss of energetic electrons from tens to several hundred keV in several hours, and gradual acceleration of relativistic electrons at several MeV in several days. The electron pitch angle scattering at ~500 keV and the acceleration at several MeV are both enhanced using the latitudinally varying density and VIP4 + CAN magnetic field model compared to the electron evolution using the constant density and dipole magnetic field model. Our sensitivity study indicates that the electron scattering at higher energy is caused by waves at lower frequencies or in a lower‐density background plasma, and the scattering is faster for waves at smaller wave normal angles. The electron diffusion is mainly caused by waves at lower latitudes, but the waves at higher latitudes (>30°) contribute to the electron loss at higher energies (>2 MeV).

中文翻译：

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利用木星磁层中真实磁场和密度模型的惠斯勒合唱波产生的高能电子散射

我们根据木星磁层中惠斯勒合唱波的真实磁场和密度模型，评估了俯仰角和能量中的高能电子散射，并研究了它们对各种波和背景参数的依赖性。我们使用VIP4内部磁场和CAN电流表模型，通过考虑总电子密度和环境磁场强度的纬度变化来计算弹跳平均扩散系数。使用0.1 f _ce的中心波频率，在10的M shell下模拟了由合唱波引起的电子相空间密度演化。波幅为30 pT。在等离子频率与电子回旋加速器频率之比的典型值下，合唱波可在数小时内引起高能电子的快速俯仰角散射损失，从几十keV到几百keV，而相对论电子在几天内逐渐加速到几MeV 。与使用恒定密度和偶极磁场模型的电子演化相比，使用纬度变化的密度和VIP4 + CAN磁场模型可以增强〜500 keV处的电子俯仰角散射和几个MeV处的加速度。我们的灵敏度研究表明，较高能量的电子散射是由较低频率的波或较低密度的背景等离子体中的波引起的，而对于较小波法向角的波，散射速度更快。