全球日冕III的模拟：半球面丝状体的起源
Modelling the Global Solar Corona III: Origin of the Hemispheric Pattern of Filaments
摘要：
我们考虑的物理起源的半球形图案的灯丝手征的太阳。我们的3D模拟的日冕场演化超过6个月，光球磁测量的基础上，以前被证明是非常成功的再现观察到的灯丝手征。在本文中，我们确定和描述的物理机制负责这一成功。主要机制是：（1）南北极性反转线的差异旋转，（2）双极活动区的形状，（3）偏斜在许多天内的演变。与真实的太阳一样，我们模拟的半球图案在统计意义上也成立。对于相对于双极有源区的某些位置中的细丝，或者从多个有源区之间的相互作用中自然地产生双极。
英文摘要：
We consider the physical origin of the hemispheric pattern of filament chirality on the Sun. Our 3D simulations of the coronal field evolution over a period of 6 months, based on photospheric magnetic measurements, were previously shown to be highly successful at reproducing observed filament chiralities. In this paper we identify and describe the physical mechanisms responsible for this success. The key mechanisms are found to be (1) differential rotation of north-south polarity inversion lines, (2) the shape of bipolar active regions, and (3) evolution of skew over a period of many days. As on the real Sun, the hemispheric pattern in our simulations holds in a statistical sense. Exceptions arise naturally for filaments in certain locations relative to bipolar active regions, or from interactions between a number of active regions.
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