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On the Construction of Phenomenological Coronal Mass Ejection Models
Space Weather ( IF 4.288 ) Pub Date : 2021-03-10 , DOI: 10.1029/2020sw002659
D. V. Peregoudov 1
Affiliation  

We consider recently developed 3DCORE coronal mass ejection (CME) model. We find that the magnetic field of 3DCORE violates both Maxwellian equations: the one for absence of magnetic monopoles and the other one for Faraday induction (“frozen‐in” condition). We recall basic heliospheric magnetohydrodynamical equations and show that they lead to a number of conservation laws. These conservation laws should be taken into account when developing a phenomenological CME model. We show that conservation laws take extremely simple form when written in Lagrange coordinates frozen into plasma. Thus, these are easy to conform and practically, there are no reasons not to conform them. We propose a modification of 3DCORE magnetic field that satisfies Maxwellian equations.

中文翻译:

论现象学的冠状物质抛射模型的构建

我们考虑了最近开发的3DCORE冠状物质抛射(CME)模型。我们发现3DCORE的磁场违反了两个麦克斯韦方程组:一个不存在磁单极子,另一个不符合法拉第感应(“冻结”条件)。我们回想起基本的日球磁流体动力学方程,并表明它们导致了许多守恒定律。在开发现象学的CME模型时,应考虑这些守恒定律。我们证明,当以拉格朗日坐标写成冷冻成等离子体时,守恒定律采取极其简单的形式。因此,这些易于遵循,并且实际上,没有理由不遵循它们。我们提出了一种修改3DCORE磁场的方法,该方法可以满足麦克斯韦方程组。
更新日期:2021-03-26
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