RUI: Recurrence Properties of Impulsive Solar Terrestrial Phenomena

太阳风等离子体速度、行星际磁场， 地磁场和银河系宇宙射线的强度 地球都随太阳自转而周期性变化。 本研究具体探讨了如何界定 观测的强度和周期复发的名单， 冲动事件 分析策略是确定 事件间隔给定时间的频率 interval. 这一频率与预期频率的比较 随机发生的事件确立了 观察周期。 具体来说，分析interest K冠数据中的间隔将比较 明亮和黑暗的日冕区域的旋转。 这些冠状 结果，快速太阳风气流之间的间隔分析 定位太阳刺激源的平均纬度， 行星际重现脉冲地磁扰动 行星际激波的替代物， 属性将与类似的分析，经常性的 宇宙射线变化 地磁的长期重现性 扰动将决定是否有陆地影响的 最近报道太阳耀斑的周期为150天。

Solar wind plasma speed, the interplanetary magnetic field, the geomagnetic field, and the galactic cosmic ray intensity near the Earth all vary periodically in response to solar rotation. This study addresses specifically the problem of defining observationally the strength and period of recurrence in lists of impulsive events. The analysis strategy is to determine the frequency with which events are separated by a given time interval. Comparison of this frequency with that expected for events which occur randomly establishes the significance of the periodicities observed. Specifically, the analysis of interevent intervals in K-coronal data will compare the differential rotation of bright and dark coronal regions. With these coronal results, analysis of intervals between fast solar wind streams locates a mean latitude of origin for the solar stimulus for interplanetary recurrence. Impulsive geomagnetic disturbances as a proxy for interplanetary shocks, and their recurrence properties will be compared with similar analyses of recurrent cosmic ray variations. Longer term recurrence of geomagnetic disturbance will decide if there are terrestrial effects of the recently reported 150 day periodicity in solar flares.