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Robust Scalings in Compressible Flux Pile-Up Reconnection

机译:可压缩通量堆积重新连接中的稳健缩放

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摘要

Flux pile-up magnetic reconnection is traditionally considered only for incompressible plasmas. The question addressed in this paper is whether the pile-up scalings with resistivity are robust when plasma compressibility is taken into account. A simple analytical argument makes it possible to understand why the transition from a highly compressible limit to the incompressible one is difficult to discern in typical simulations spanning a few decades in resistivity. From a practical standpoint, however, flux pile-up reconnection in a compressible plasma can lead to anomalous electric resistivity in the current sheet and flare-like energy release of magnetic energy in the solar corona.
机译:传统上仅考虑不可压缩等离子体时才考虑使用磁通堆积磁性重新连接。本文所要解决的问题是,当考虑到等离子体的可压缩性时,具有电阻率的堆积比例是否稳定。一个简单的分析论点就可以理解为什么在几十年的电阻率典型模拟中很难分辨出从高度可压缩极限到不可压缩极限的过渡。但是,从实际的角度来看,可压缩等离子体中的通量堆积重新连接会导致电流表中的电阻率异常,并导致日冕中磁能的耀斑状能量释放。

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  • 来源
    《Solar Physics》 |2003年第2期|173-181|共9页
  • 作者单位

    Institute for the Study of Earth Oceans and Space University of New Hampshire;

    Department of Mathematics University of Waikato;

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  • 正文语种 eng
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