超强太阳质子事件及相伴现象特征分析  

The Analysis of the Properties of Super Solar Proton Events and the Associated Phenomena

作　　者：程立斌[1] 乐贵明[2,3] 陆阳平[4,2] 陈旻昊[4,2] 李鹏[4,2] 尹志强[3] 

机构地区：[1]上饶师范学院物理与电子信息学院,上饶334001 [2]中国气象局国家空间天气监测预警中心,北京100081 [3]中国科学院国家天文台,北京100012 [4]南京信息工程大学数学与统计学院,南京210044

出　　处：《天文学报》2014年第3期203-210,共8页Acta Astronomica Sinica

基　　金：国家重大科学研究计划项目(2012CB957801);国家自然科学基金项目(41074132;41274193);质检公益行业专项(200710123)资助

摘　　要：依据卫星和地面的观测数据,分析了峰值流量达到或超过10 000 pfu(1 pfu=1proton.cm^2.s^(-1).sr^(-1))的超强太阳质子事件相伴的太阳耀斑、曰冕物质抛射(CME)驱动激波的曰地传播速度、源区的曰面经度、卡林顿经度以及相伴的磁暴等现象.研究表明,超强太阳质子事件源区的曰面经度范围为E30°<Longitude≤W75°.超强太阳质子事件源区分布在2个卡林顿经度带,分别为130°~220°的区域和260°~320°的区域.超强太阳质子事件都伴随着强烈的太阳耀斑和快速CME,CME驱动的激波从太阳到地球的平均速度超过1200 km/s.除一个超强太阳质子事件相伴的磁暴略低于强磁暴外,其余8个都伴有Dst≤-100 nT的强烈磁暴.The solar flare,the propagation speed of shock driven by coronal mass ejection（CME） from the sun to the Earth,the source longitudes and Carrington longitudes,and the geomagnetic storms associated with each super solar proton event with the peak flux equal to or exceeding 10000 pfu have been investigated.The analysis results show that the source longitudes of super solar proton events ranged from E30° to W75°.The Carrington longitudes of source regions of super solar proton events distributed in the two longitude bands,130°～220° and 260°～320°,respectively.All super solar proton events were accompanied by major solar flares and fast CMEs.The averaged speeds of shocks propagated from the sun to the Earth were greater than 1200 km/s.Eight super solar proton events were followed by major geomagnetic storms（Dst≤-100 nT）.One super solar proton event was followed by a geomagnetic storm with Dst=-96 nT.

关 键 词：太阳:耀斑 太阳:日冕物质抛射 太阳:粒子发射 太阳:日地关系 

分 类 号：P182[天文地球—天文学]