1965-2014年银河系宇宙射线三维太阳各向异性的准周期变化
Quasi-periodic changes of three dimensional solar anisotropy of galactic cosmic rays for 1965-2014
摘要：
我们研究了1965-2014年银河系宇宙射线（GCR）的三维各向异性特征。分析了黄道面二维GCR各向异性和垂直于黄道面的南北各向异性的27天变化。研究了3D GCR各向异性的27天变化与太阳周和太阳磁周的关系。结果表明，GCR强度和各向异性的27天变化可以作为研究太阳风、太阳活动和日光层的重要工具。我们使用的组件的3D GCR各向异性发现的每小时的数据的中子监测器（NM）和μ子望远镜（MT）使用谐波分析和光谱方法。我们纠正了地球磁场的影响的GCR强度的2D日变化。我们推导出南北分量的GCR各向异性的基础上的GG指数计算的GCR强度的名古屋多向MT的差异。我们表明，行为的3D各向异性的27-变化验证了一个稳定的长寿命的活动日长的太阳上的存在。这一发现说明了GCR各向异性的27天变化作为研究太阳风，太阳活动和日光层的独特代理的有用性。我们区分了与太阳磁周期相关的二维各向异性27天变化幅度的22年变化趋势。我们证明了各向异性的南北分量的27天变化的振幅在11年的太阳活动周期上发生变化，但是，很难识别出太阳磁极性的依赖性。结果表明，$GG$指数和At分量的27天重现性具有很高的正相关性，并且都与日球磁场的By分量有很高的相关性。
英文摘要：
We study features of the 3D anisotropy of galactic cosmic rays (GCR) for 1965-2014. We analyze the 27-day variations of the 2D GCR anisotropy in the ecliptic plane, and the north-south anisotropy normal to the ecliptic plane. We study the dependence of the 27-day variation of the 3D GCR anisotropy on the solar cycle and solar magnetic cycle. We demonstrate that the 27-day variations of the GCR intensity and anisotropy can be used as an important tool to study solar wind, solar activity and heliosphere. We use the components of the 3D GCR anisotropy found based on hourly data of neutron monitors (NMs) and muon telescopes (MTs) using the harmonic analyses and spectrographic methods. We correct 2D diurnal variation of the GCR intensity for the influence of the Earth magnetic field. We derive the north-south component of the GCR anisotropy based on the GG index calculated as the difference in GCR intensities of Nagoya multidirectional MTs. We show that behavior of the 27-variation of the 3D anisotropy verifies an existence of a stable long-lived active heliolongitudes on the sun. This finding illustrates usefulness of the 27-day variation of the GCR anisotropy as a unique proxy to study solar wind, solar activity and heliosphere. We distinguish a tendency of the 22-year changes of the amplitudes of the 27-day variation of the 2D anisotropy connected with the solar magnetic cycle. We demonstrate that the amplitudes of the 27-day variation of the north-south component of the anisotropy vary upon the 11 year solar cycle, however, a dependence of the solar magnetic polarity hardly can be recognized. We show that the 27-day recurrences of the $GG$ index and At component are in a high positive correlation, and both are highly correlated with By component of the heliospheric magnetic field.
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