论文标题
Halley等离子体中的冲击点
Shocklets in the Comet Halley Plasma
论文作者
论文摘要
在Halley等离子体系统放松到Maxwellian，Kappa和Cairns分布中，研究了尘埃声（DA）波变成冲击。在这里，完全非线性的连续性和动量方程来描述灰尘的动力学。获得了一组两个特征性波非线方程并在数值上求解，以检查随着时间的流动而形成振荡性冲击的DA孤立脉冲，例如在时间τ= 0，形成对称孤立脉冲，形成了振荡性冲击。已经观察到，超热性的变化在负电位，灰尘速度和密度方面强烈影响非线性DA结构的特征。
Dust acoustic (DA) waves evolving into shocklets are investigated in the Comet Halley plasma system relaxing to Maxwellian, Kappa and Cairns distributions. Here dynamics of dust is described by the fully nonlinear continuity and momentum equations. A set of two characteristic wave nonlinear equations is obtained and numerically solved to examine the DA solitary pulse which develops into oscillatory shocklets with the course of time such as at time τ=0, symmetric solitary pulses are formed, which develop into oscillatory shocklets. It has been observed that variation in superthermality strongly affects the profiles of nonlinear DA structures in terms of negative potential, dust velocity and density.
