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Propagation of Alfvén waves in multi-layer solar atmosphere model
Authors:Li Bo  Wang Shui
Affiliation:

Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026 China

Abstract: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 Alfvén 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 Alfvén waves with period of seconds to transfer their energy.
Keywords:solar atmosphere — Alfvén wave — coronal heating
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