标题： 将太阳表面和日冕耦合：日冕旋转，阿尔芬波驱动的极羽 显示英文标题

标题： Coupling the solar surface and the corona: coronal rotation, Alfvén wave-driven polar plumes

摘要： 太阳日冕对表面和次表面扰动的动力学响应取决于色球层的分层结构，特别是这些层反射或传输入射阿尔芬波的效率。 虽然希望在用于研究这些现象的数值模拟中包含色球层，但通常这是不可行的。 我们定义并测试了一种简单的近似方法，使得在考虑参数化色球反射率的情况下，可以研究日冕现象。 我们解决了表面旋转向日冕的传输问题以及阿尔芬波产生极羽的问题（Pinto等人，2010，2011）。 我们发现，为了正确描述日冕中的角动量平衡以及表面差分旋转如何向上传输，需要高（但部分）有效色球反射率。 由阿尔芬波驱动的极羽在反射率的广泛范围内保持其特性，但当达到完全反射的极限时，它们会变得突发（最终破坏）。 显示英文摘要

摘要： The dynamical response of the solar corona to surface and sub-surface perturbations depends on the chromospheric stratification, and specifically on how efficiently these layers reflect or transmit incoming Alfv\'en waves. While it would be desirable to include the chromospheric layers in the numerical simulations used to study such phenomena, that is most often not feasible. We defined and tested a simple approximation allowing the study of coronal phenomena while taking into account a parametrised chromospheric reflectivity. We addressed the problems of the transmission of the surface rotation to the corona and that of the generation of polar plumes by Alfv\'en waves (Pinto et al., 2010, 2011). We found that a high (yet partial) effective chromospheric reflectivity is required to properly describe the angular momentum balance in the corona and the way the surface differential rotation is transmitted upwards. Alfv\'en wave-driven polar plumes maintain their properties for a wide range of values for the reflectivity, but they become bursty (and eventually disrupt) when the limit of total reflection is attained.