电流螺旋度和扭曲度作为太阳磁场镜像不对称性的两个指标
Current Helicity and Twist as Two Indicators of The Mirror Asymmetry of solar Magnetic Fields
摘要：
本文比较了反映太阳活动区磁场镜像不对称性的两种示踪剂--螺旋度和电流螺旋度。结果表明，对于个别活动区域，这些示踪剂不具有可见的相似性，而平均时间超过太阳周期，或纬度，揭示了它们的行为的相似性。该数据集的主要属性是在太阳赤道上的反对称性。考虑到螺旋性质在太阳周期的演变，我们发现在周期开始时可能的符号变化的签名，虽然需要更系统的观测数据进行明确的确认。我们讨论的背景下，太阳发电机理论的示踪剂的作用。
英文摘要：
A comparison between the two tracers of magnetic field mirror asymmetry in solar active regions, twist and current helicity, is presented. It is shown that for individual active regions these tracers do not possess visible similarity while averaging by time over the solar cycle, or by latitude, reveals similarities in their behaviour. The main property of the dataset is anti-symmetry over the solar equator. Considering the evolution of helical properties over the solar cycle we find signatures of a possible sign change at the beginning of the cycle, though more systematic observational data are required for a definite confirmation. We discuss the role of both tracers in the context of the solar dynamo theory.
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