论文标题
恒星中的热对流及其气氛
Thermal Convection in Stars and in Their Atmosphere
论文作者
论文摘要
热对流是一般恒星中的热传输和混合的主要机制之一，也是光电层中我们使用天文仪器观察到的辐射。本讲义首先介绍了对流在天体物理学中的作用，并解释了对流的基本物理。接下来是关于对流建模的概述。随后讨论了基于数值模拟的建模中的挑战和陷阱。最后，更详细地描述了对先前介绍的概念的特殊应用：对流的研究过度分支到恒星中对流区域周围稳定分层的层。
Thermal convection is one of the main mechanisms of heat transport and mixing in stars in general and also in the photospheric layers which emit the radiation that we observe with astronomical instruments. The present lecture notes first introduce the role of convection in astrophysics and explain the basic physics of convection. This is followed by an overview on the modelling of convection. Challenges and pitfalls in numerical simulation based modelling are discussed subsequently. Finally, a particular application for the previously introduced concepts is described in more detail: the study of convective overshooting into stably stratified layers around convection zones in stars.
