Total resonant absorption of acoustic oscillations in sunspots
Total resonant absorption of acoustic oscillations in sunspots
复制标题
太阳黑子中声振荡的总共振吸收
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
M. Goossens
中科院分区：
文献类型：
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作者：
Hilde Stenuit;S. Poedts;M. Goossens
研究了圆柱形一维通量管在均匀的非磁性等离子体包围下，只在径向分层的太阳黑子中声振荡的总共振吸收问题。通过增加平衡磁通管方向磁场的强度，进一步研究了Goossens和Poedts(1992)在线性电阻磁流体中的数值研究。对于相对较强的方位磁场，在相对较宽的光斑半径范围内可以发现总吸收。
The question of total resonant absorption of acoustic oscillations in sunspots is studied for cylindrical 1-D flux tubes that are stratified only in the radial direction and surrounded by a uniform, non-magnetic plasma. The numerical investigation of Goossens and Poedts (1992) in linear resistive MHD is taken further by increasing the strength of the azimuthal magnetic field in the equilibrium flux tubes. For relatively strong azimuthal magnetic fields, total absorption is found over a relatively wide range of spot radii.