太阳质子事件与太阳耀斑的关系  

Relationship Between Solar Proton Events and the Associated Solar Flares

作　　者：乐贵明[1,2,3] 王鸿雁 白铁男 LE Guiming;WANG Hongyan;BAI Tienan(Chinese Academy of Meteorological Administration,China Meteorological Administration,Beijing 100081;Key Laboratory of Space Weather,China Meteorological Administration,Beijing 100081;National Center for Space Weather,Beijing 100081)

机构地区：[1]中国气象科学研究院,北京100081 [2]中国气象局空间天气重点开放实验室,北京100081 [3]国家空间天气监测预警中心,北京100081

出　　处：《空间科学学报》2018年第4期437-443,共7页Chinese Journal of Space Science

基　　金：国家自然科学基金项目资助(41474166;41074132;41274193)

摘　　要：通过对0°W-39°W,40°W-70°W,71°W-90°W经度范围内太阳质子事件与太阳耀斑的相关性计算分析,发现太阳质子事件与太阳耀斑的相关系数依赖于经度.太阳耀斑积分与地球磁链接区域(40°W-70°W)太阳质子事件强度的相关系数最大.相关系数的这种特点与耀斑加速粒子的最大流量只出现在磁链接区域的特征相吻合.计算结果表明,太阳耀斑对太阳质子事件具有贡献,即耀斑对E≥10 MeV的质子加速有贡献.耀斑和CME在磁链接区域对太阳质子事件的贡献相同,这说明太阳质子事件是混合型事件.The Correlation Coefficients（C.C） between the time integral of solar Soft X-Ray（SXR）flux and the intensities of Solar Proton Events（SPE） in 0°W-39°W, 40°W-70°W and 71°W-90°W longitudinal areas have been calculated. The results show that the CC has its largest value. The property of CC is consistent with the concept that the largest flux of flare-accelerated particles can only be observed in the longitudinal area well magnetic connected with the observer. The results suggest that solar flares contribute to the production of SPE, namely that E≥ 10 MeV protons may be accelerated by the concurrent flares at the early phases of SPE.

关 键 词：太阳耀斑 日冕物质抛射 太阳质子事件 

分 类 号：P353[天文地球—空间物理学]