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MHD waves at a spherical interfacemodelling coronal global EIT waves

机译:MHD波在球形interfacemodelling冠状全球EIT波浪中

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Energetically eruptive events such as flares and coronal mass ejections (CMEs) areknown to generate global waves, propagating over large distances, sometimes comparable to thesolar radius. In this contribution EIT waves are modelled as waves propagating at a sphericaldensity interface in the presence of a radially expanding magnetic field. The generation andpropagation of EIT waves is studied numerically for coronal parameters. Simple equilibria allowthe explanation of the coronal dimming caused by EIT waves as a region of rarified plasmacreated by a siphon flow
机译:诸如耀斑和冠状质量射出量(CMES)的能量爆发事件以产生全局波,在大距离上传播,有时与Thesolar半径相当。在该贡献中,EIT波被建模为在存在径向扩展磁场的存在下在球形密度界面处传播的波。以冠状参数数值研究EIT波的生成和竖力。简单的均衡允许解释由EIT波引起的冠状调光,作为虹吸流令人难以读取的血管纤维的区域

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