多层太阳大气模式中Alfven波的传播

将实际的太阳大气划分为多个等温层次，导出了均匀倾斜磁场下线性Alfven波通过任意多等温层的能量透射率，结果表明，两等温层模式与三等温层模式的结果存在本质的区别。在两等温层中，温度的跃变式增高对Alfven波起着高通滤波的作用，而三等温层中在高频端Alfven波的透射率显示为振荡形态，对实际大气温度模式的计算结果表明，太阳低层大气更适合于周期为数秒的Alfven波的能量传输。

PROPAGATION OF ALFVEN WAVES IN MULTI-LAYER SOLAR ATMOSPHERE MODEL

In this paper, the actual solar atmoshpere is idealized as a multi- isothermallayer system so as to obtain the energy transmittance of the linear Alfven wave that propagates through such a system in presence of a uniform oblique magnetic field. The result indicates that two-layer models are essentially different to three-layer models. In two-layer models, the temperature jump act as a high pass-filter, while in three-layer models, resonant transfer will take place, the transmittance shows a. vibration. The result reveals that the lower parts of the solar atmopshere are more suitable for those Alfven waves with period of a few seconds to transfer their energy.