Filament Oscillations and Moreton Waves Associated with EIT Waves
Filament Oscillations and Moreton Waves Associated with EIT Waves
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DOI：
10.1086/420838
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发表时间：
2004-06
期刊：
影响因子：
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通讯作者：
T. Okamoto;H. Nakai;Atsushi Keiyama;N. Narukage;S. Ueno;R. Kitai;H. Kurokawa;K. Shibata
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文献类型：
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作者：
T. Okamoto;H. Nakai;Atsushi Keiyama;N. Narukage;S. Ueno;R. Kitai;H. Kurokawa;K. Shibata
在这篇文章中，我们比较了极紫外光成像望远镜波和在Hα中看到的同步现象，以解决什么是极紫外光成像望远镜波的问题。我们调查了1999-2002年间太阳耀斑大于M级耀斑的事件。Hα的数据是用京都大学日田天文台的耀斑监测望远镜获取的。在14个EIT波和Hα的同时观测中，发现11个有细丝喷发，3个与Moreton波有关，1个只有细丝振荡。这表明，即使存在电磁感应透明波，我们也不能在Hα中看到清晰的波前，但可以通过暗条振荡来识别不可见波。详细研究了与EIT波相关的细丝振荡和Moreton波的性质，发现这些细丝振荡是由EIT波引起的。
In this paper we compare EUV Imaging Telescope (EIT) waves with simultaneous phenomena seen in Hα in order to address the question of what an EIT wave is. We surveyed the events associated with solar flares larger than GOES M-class in 1999-2002. The Hα data are taken with the Flare-monitoring Telescope (FMT) at the Hida Observatory of Kyoto University. Among 14 simultaneous observations of EIT waves and Hα, 11 were found to have filament eruptions, three were associated with Moreton waves, and one was found to have only filament oscillations. This shows that we cannot see clear wave fronts in Hα even if EIT waves exist, but that it is possible to recognize invisible waves by means of filament oscillations. The nature of filament oscillations and Moreton waves associated with EIT waves is examined in detail, and it is found that the filament oscillations were caused by EIT waves.