大尺度软X射线环及其磁手征
Large Scale Soft X-ray Loops And Their Magnetic Chirality In Both Hemispheres
摘要：
利用软X射线和磁场观测资料研究了太阳大气的磁手征。研究发现，在大尺度背景磁场消失之前，某些大尺度扭曲软X射线环系统会在太阳大气中出现几个月。它提供了太阳大气中大尺度磁场螺旋度的观测证据，也提供了与太阳活动周期有关的两半球螺旋度规则相反的观测证据。磁螺旋度从次大气层的转移与太阳两半球大尺度扭曲软X射线环的形成是一致的。
英文摘要：
The magnetic chirality in solar atmosphere has been studied based on the soft X-ray and magnetic field observations. It is found that some of large-scale twisted soft X-ray loop systems occur for several months in the solar atmosphere, before the disappearance of the corresponding background large-scale magnetic field. It provides the observational evidence of the helicity of the large-scale magnetic field in the solar atmosphere and the reverse one relative to the helicity rule in both hemispheres with solar cycles. The transfer of the magnetic helicity from the subatmosphere is consistent with the formation of large-scale twisted soft X-ray loops in the both solar hemispheres.
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