论文标题
耀斑和非力量活动区域之间的周期性磁性螺旋注射行为差异：案例研究
Differences in periodic magnetic helicity injection behaviour between flaring and non-flaring Active Regions: Case Study
论文作者
论文摘要
磁性螺旋的演变与太阳喷发有着密切的关系，并且作为预测性诊断。在此案例研究中，我们使用夏普（SpaceWeather Heliose震动磁成像区域斑块）载体磁场数据分析了归一化出现，剪切和总磁性螺旋成分的演变。用小波变换分析了三个磁性螺旋成分的演变，揭示了在耀斑的ARS中耀斑之前的归一化出现，剪切和总螺旋性通量的显着共同周期。这三个非素质AR并未显示出这种常见的周期性行为。该案例研究表明，磁性螺旋成分的功率谱中存在重要的周期性可以作为耀斑的宝贵前体。
The evolution of magnetic helicity has a close relationship with solar eruptions and is of interest as a predictive diagnostic. In this case study, we analyse the evolution of the normalised emergence, shearing and total magnetic helicity components in the case of three flaring and three non-flaring active regions (ARs) using SHARPs (Spaceweather Helioseismic Magnetic Imager Active Region Patches) vector magnetic field data. The evolution of the three magnetic helicity components is analysed with wavelet transforms, revealing significant common periodicities of the normalised emergence, shearing and total helicity fluxes before flares in the flaring ARs. The three non-flaring ARs do not show such common periodic behaviour. This case study suggests that the presence of significant periodicities in the power spectrum of magnetic helicity components could serve as a valuable precursor for flares.
