It is shown that the solar wind interaction with dusty plasma in planetary magnetospheres gives rise to electrostatic instabilities and solitary structures. Non-Maxwellian electrons increase the growth rate of shear flow instability and reduce the amplitude of solitary pulses formed by the modified dust ion acoustic wave (mDIAW) in nonlinear regime. Dust number density plays the similar role. The kappa (\(\kappa \)) and Cairns distribution functions are used to take into account the role of non-Maxwellian electrons in the presence of stationary dust and flowing ions along the external magnetic field with inhomogeneous velocity. This theoretical model is general and it can be applied to various dusty plasma environments such as interstellar medium, cometary tails and planetary magnetospheres. Here it has been applied to the Saturn’s \(F\)-ring plasma.

结果表明，太阳风与行星磁层中尘土等离子体的相互作用会引起静电不稳定性和孤立的结构。非麦克斯韦电子提高了剪切流不稳定性的增长速度，并减小了在非线性状态下由改进的粉尘离子声波（mDIAW）形成的孤立脉冲的幅度。尘埃数密度起着相似的作用。kappa（\（\ kappa \））和凯恩斯分布函数用于考虑非麦克斯韦电子在静止的尘埃和沿着外部磁场以不均匀速度流动的离子存在下的作用。该理论模型是通用的，可以应用于各种尘土飞扬的等离子体环境，例如星际介质，彗星尾巴和行星磁层。此处已将其应用于土星的\（F \）环等离子体。