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首页> 外文会议>COSPAR colloquium >LOOP-TYPE CME PRODUCED BY MAGNETIC RECONNECTION OF TWO LARGE LOOPS AT THE ASSOCIATED ARCADE FLARE OCCURRING BETWEEN THE FOOTPOINTS OF A CME
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LOOP-TYPE CME PRODUCED BY MAGNETIC RECONNECTION OF TWO LARGE LOOPS AT THE ASSOCIATED ARCADE FLARE OCCURRING BETWEEN THE FOOTPOINTS OF A CME

机译：通过在CME的足址之间发生的相关街机闪光产生的两个大循环产生的循环式CME

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摘要

We concentrate in the present paper on loop-type CMEs, one of the two physically different types of CMEs we discussed elsewhere (Uchida et al. 2001). Loop-type CMEs are interpreted here as being due to a rising large magnetic loop that results from magnetic reconnection of two pre-existing loops which have connected the two outer magnetic regions to a region where an associated arcade flare will occur. We have found supporting evidence for this view in the faint structure-enhanced Yohkoh images before the CME event. Namely, the acceleration and the characteristic distortion of some of the rising loop-type CMEs can be explained in our model, and these may be driven in part by large amplitude torsional Alfven wave packets (TAWP's) coming up from the footpoints. Simultaneous release of TAWP's from both footpoints separated by a huge distance is not very natural to suppose, and therefore, we think that the TAWP's are released from the flare site. These TAWP's, bouncing back from the outer footpoints, propagate up along the large loop newly created in the reconnection process in the flare, and may cause helical instability, etc. Some intermediate results of our 3D MHD simulations of this process (Kuwabara et al. 2002) will be shown and discussed.
机译：我们专注于循环式CMES上的本文，我们在别处讨论的两种物理上不同类型的CMES之一（Uchida等，2001）。作为在将发生相关的拱道闪光的区域的两个预先存在的环的磁重构导致两个预先存在的环的磁重构产生的大磁环上升，这是由于上升的大磁环导致。我们发现在CME事件之前在微弱的结构增强的Yohkoh图像中找到了对此视图的证据。即，在我们的模型中可以解释一些上升环型CME的加速度和特征失真，并且这些可以通过从脚踏点提升的大幅度扭转Alfven波分组（Tawp）部分地驱动。从巨额距离分开的两只距离的Tawp的同时释放不是很自然，因此，我们认为Tawp的释放来自耀斑网站。这些Tawp从外部足迹中弹出回来，沿着在闪光中的重新连接过程中新创建的大循环传播，并且可能导致螺旋不稳定等。这一过程的3D MHD模拟的一些中间结果（Kuwabara等人。 2002年）将显示和讨论。

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