Propagation of Alfven waves in multi-layer solar atmosphere model

被引:1
作者
Li, B [1 ]
Wang, S [1 ]
机构
[1] Univ Sci & Technol China, Dept Earth & Space Sci, Hefei 230026, Peoples R China
基金
中国国家自然科学基金;
关键词
solar atmosphere; Alfven wave; coronal heating;
D O I
10.1016/S0275-1062(01)00098-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper, we idealize the actual solar atmosphere as a multi-isothermal-layer 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 filed. The results indicate that the two-layer model is essentially different to the three-layer one. In the two-layer model, the temperature jump acts as a high pass filter. In the three-layer model, resonant transfer will take place and the transmittance undergoes oscillation as the trigonometric function terms dominate its behavior. For actual solar atmosphere,the result reveals that the lower parts of solar atmosphere are more suitable for those Alfven waves with period of seconds to transfer their energy.
引用
收藏
页码:446 / 455
页数:10
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