太阳上粒间通道的次扩散输运。Leighton模型的重新审视
Subdiffusive transport in intergranular lanes on the Sun. The Leighton model revisited
摘要：
本文研究了与太阳光球层磁场有关的磁亮点的随机运动。在短时间范围内[0-20分钟]的MBP运输具有亚扩散特性，因为磁通量倾向于在流场的汇处积累。这样的行为可以严格地描述在一个连续的时间随机行走导致分数福克-普朗克动力学的框架。这种形式主义，适用于分析的太阳磁场的次扩散，推广莱顿的模型。
英文摘要：
In this paper we consider a random motion of magnetic bright points (MBP) associated with magnetic fields at the solar photosphere. The MBP transport in the short time range [0-20 minutes] has a subdiffusive character as the magnetic flux tends to accumulate at sinks of the flow field. Such a behavior can be rigorously described in the framework of a continuous time random walk leading to the fractional Fokker-Planck dynamics. This formalism, applied for the analysis of the solar subdiffusion of magnetic fields, generalizes the Leighton's model.
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