Wave propagation in a magnetically structured atmosphere
Wave propagation in a magnetically structured atmosphere
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DOI：
10.1007/bf00170986
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发表时间：
1982-03
期刊：
影响因子：
2.8
通讯作者：
P. M. Edwin;B. Roberts
中科院分区：
文献类型：
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作者：
P. M. Edwin;B. Roberts
研究了嵌入在磁环境中的磁性板中波的传播。对于在环境中消失的扰动，从一般的色散关系出发，从解析和数值两方面考察了可能的传播模式。本文从一般色散关系和细长通量管近似的应用出发，导出了光场透镜中传输的近似色散关系，并考虑了光球和日冕条件下的几种不同情况。一般来说，人们发现这些结构既能支撑快波，也能支撑慢波、体波和表面波。在日冕条件下，对于二维传播，扰动以快体波和慢体波的形式传播。快速体波类似于地震学中的导管横波(Love波)。
The propagation of waves in a magnetic slab embedded in a magnetic environment is investigated. The possible modes of propagation are examined from thegeneraldispersion relation, both analytically and numerically, for disturbances which are evanescent in the environment. Approximate dispersion relations governing propagation in aslenderslab of field are derived both from the general dispersion relation and from an application of the slender flux tube approximation.Several different situations, representative of both photospheric and coronal conditions, are considered. In general, the structures are found to support both fast and slow,bodyandsurface, waves. Under coronal conditions, for two dimensional propagation, disturbances propagate as fast and slow body waves. The fast body waves are analogous to the ducted shear waves of seismology (Love waves).