Magnetic reconnection in a weakly ionized plasma
Magnetic reconnection in a weakly ionized plasma
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DOI：
10.1063/1.4811140
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发表时间：
2013-02
影响因子：
2.2
通讯作者：
J. Leake;V. Lukin;M. Linton
中科院分区：
文献类型：
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作者：
J. Leake;V. Lukin;M. Linton
从实验室到星际尺度，部分电离等离子体中的磁重联是一种普遍存在的现象，但它仍然知之甚少，研究也相对较少。在这里，我们给出了弱电离反应等离子体中磁重联的自洽多流体模拟的结果，其中特别关注太阳色球的参数区域。数值模型包括碰撞输运、物种间的相互作用和反应，以及光学薄层辐射损失。这个模型改进了我们在Leake等人之前的工作。《弱电离反应等离子体中色球磁重联的多流体模拟》，占星学。J.760,109(2012)]通过考虑实际的色球输运系数，并通过求解解释有限离子惯性和电子中性阻力的广义欧姆定律。我们发现，在哈里斯电流片的二维重联过程中，初始宽度大于…
Magnetic reconnection in partially ionized plasmas is a ubiquitous phenomenon spanning the range from laboratory to intergalactic scales, yet it remains poorly understood and relatively little studied. Here, we present results from a self-consistent multi-fluid simulation of magnetic reconnection in a weakly ionized reacting plasma with a particular focus on the parameter regime of the solar chromosphere. The numerical model includes collisional transport, interaction and reactions between the species, and optically thin radiative losses. This model improves upon our previous work in Leake et al. [“Multi-fluid simulations of chromospheric magnetic reconnection in a weakly ionized reacting plasma,” Astrophys. J. 760, 109 (2012)] by considering realistic chromospheric transport coefficients, and by solving a generalized Ohm's law that accounts for finite ion-inertia and electron-neutral drag. We find that during the two dimensional reconnection of a Harris current sheet with an initial width larger than the...