论文标题
磁性绕组 - 解锁通量出现中拓扑复杂性的关键
Magnetic winding -- a key to unlocking topological complexity in flux emergence
论文作者
论文摘要
磁性螺旋度是理想磁流失动力学（MHD）的不变性，它编码有关磁场线拓扑的信息。长期以来，人们一直认为，磁拓扑是对MHD中磁场演变的重要限制。在对太阳大气的应用中，了解磁拓扑对于遵循磁场的演化和喷发至关重要。目前，可以在太阳观测中测量磁性螺旋通量，但是由于混杂因素的组合，结果很难解释结果。我们建议可以使用螺旋通量的重新归一化，即\ emph {磁绕组}，可用于检测磁场中更详细的拓扑特征，从而为预测太阳喷发的发作提供了更可靠的签名。
Magnetic helicity is an invariant of ideal magnetohydrodynamics (MHD) that encodes information on the topology of magnetic field lines. It has long been appreciated that magnetic topology is an important constraint for the evolution of magnetic fields in MHD. In applications to the solar atmosphere, understanding magnetic topology is crucial for following the evolution and eruption of magnetic fields. At present, magnetic helicity flux can be measured in solar observations but the interpretation of results is difficult due to the combination of confounding factors. We propose that a renormalization of helicity flux, the \emph{magnetic winding}, can be used to detect more detailed topological features in magnetic fields and thus provide a more reliable signature for predicting the onset of solar eruptions.
