论文标题
行星发电机中的波浪
Waves in planetary dynamos
论文作者
论文摘要
这个特殊的主题着重于行星深度内部的磁性水力动力学（MHD）过程，其中其流体发电机正在运行。发电机生成的全局磁场为我们的太阳事物环境提供了背景。探测Dynamos中的过程是一个重大的理论和计算挑战，而进入内部动力学的任何窗口都大大增加了我们的理解。通过探索快速动力学，尤其是有关动力定义的基本状态的MHD波来提供这样的窗口。随着地球物理观测和数值模块的推进，该领域是当前注意力的主题。我们在这里特别关注扭转的抗抗抗球/振荡和磁性rossby波，这可以被视为典型的轴对称和非轴对称模式，在各种快速旋转的MHD MHD MHD流体的各种波浪类别中。这些波浪的激发是为吉迪纳莫（Geodynamo）所证明的，同时也建议木星。我们将概述它们的动态，总结我们当前的理解，并为将来的观点提供开放的问题。
This Special Topic focuses on magnetohydrodynamic (MHD) processes in deep interiors of planets, in which their fluid dynamos are in operation. The dynamo-generated, global, magnetic fields provide a background for our solar-terrestrial environment. Probing the processes within the dynamos is a significant theoretical and computational challenge and any window into interior dynamics greatly increases our understanding. Such a window is provided by exploring rapid dynamics, particularly MHD waves about the dynamo-defined basic state. This field is the subject of current attention as geophysical observations and numerical modellings advance. We give here particular attention to torsional Alfvén waves/oscillations and magnetic Rossby waves, which may be regarded as typical axisymmetric and nonaxisymmetric modes, respectively, amongst a wide variety of wave classes of the rapidly-rotating MHD fluids. The excitation of those waves is being evidenced for the geodynamo, whilst also being suggested for Jupiter. We shall overview their dynamics, summarise our current understanding, and give open questions for future perspectives.
