论文标题
太阳耀斑和磁性螺旋性
Solar Flares and Magnetic Helicity
论文作者
论文摘要
太阳耀斑和冠状质量弹出是当前太阳系中最大的能量释放现象。它们引起各种波长的电磁波的急剧增强，有时会驱射冠状物质到星际间空间中，扰乱了包括地球在内的轨道行星的磁性环境。人们普遍认为，太阳耀斑是一种现象，其中在活动区域上方的太阳大气中存储的磁能突然通过磁重新释放。因此，为了阐明太阳耀斑的性质，估计磁场的复杂性并跟踪其进化至关重要。因此，磁性螺旋度是冠状磁性结构扭曲的一种度量，用于量化和表征耀斑生产活性区域的复杂性。本章概述了太阳耀斑，并讨论了如何使用磁性螺旋性的不同概念来理解和预测太阳耀斑。
Solar flares and coronal mass ejections are the largest energy release phenomena in the current solar system. They cause drastic enhancements of electromagnetic waves of various wavelengths and sometimes eject coronal material into the interplanetary space, disturbing the magnetic surroundings of orbiting planets including the Earth. It is generally accepted that solar flares are a phenomenon in which magnetic energy stored in the solar atmosphere above an active region is suddenly released through magnetic reconnection. Therefore, to elucidate the nature of solar flares, it is critical to estimate the complexity of the magnetic field and track its evolution. Magnetic helicity, a measure of the twist of coronal magnetic structures, is thus used to quantify and characterize the complexity of flare-productive active regions. This chapter provides an overview of solar flares and discusses how the different concepts of magnetic helicity are used to understand and predict solar flares.
