论文标题

在旋转恒星或行星中对流和稳定分层区域的界面处的波反射和传播

Wave reflection and transmission at interface of convective and stably stratified regions in a rotating star or planet

论文作者

Wei, Xing

论文摘要

我们使用简化的模型来研究对流区域和稳定分层区域(例如,恒星中的辐射区或气态行星中的分层层)的波反射和传播。考虑了对流区域中的惯性波和稳定分层区域的重力惯性波。我们从极地区域开始,然后扩展到任何纬度。讨论了六个病例(请参见表1),在情况2中,两个波浪在两个区域共存。进一步讨论了案例2的四个配置。计算波反射和传输的角度和能量比。发现波传播和传播取决于浮力频率与旋转频率的比率。在快速旋转的恒星或行星波中,跨界面传播,大部分入射波能量都传播到另一个区域,但是在缓慢旋转的恒星或行星波传播中,抑制了恒星。

We use a simplified model to study wave reflection and transmission at interface of convective region and stably stratified region (e.g. radiative zone in star or stratification layer in gaseous planet). Inertial wave in convective region and gravito-inertial wave in stably stratified region are considered. We begin with polar area and then extend to any latitude. Six cases are discussed (see Table 1), and in Case 2 both waves co-exist in both regions. Four configurations are further discussed for Case 2. The angles and energy ratios of wave reflection and transmission are calculated. It is found that wave propagation and transmission depend on the ratio of buoyancy frequency to rotational frequency. In a rapidly rotating star or planet wave propagates across interface and most of energy of incident wave is transmitted to the other region, but in a slowly rotating star or planet wave transmission is inhibited.

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