SPICULES - RESONANT RESPONSE TO GRANULAR BUFFETING

被引:50
作者
ROBERTS, B
机构
[1] Dept. of Applied Mathematics, University of St. Andrews, St. Andrews, Fife
关键词
D O I
10.1007/BF00155443
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We propose that spicules are the direct result of a resonant buffeting of the sides of an intense (kilogauss) slender flux tube by turbulent granular motions. For a critical wavespeed, the granular motion drives a high-speed flow along the axis of the tube. We illustrate this effect by considering in detail a flux tube embedded in a uniform compressible atmosphere, thereby modelling the development of the 'seedflow' in the photosphere that eventually manifests itself in the chromosphere as the spicule. © 1979 D. Reidel Publishing Company.
引用
收藏
页码:23 / 34
页数:12
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