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2000年7月14日太阳高能粒子事件引起地球同步轨道区相对论电子通量巨幅增加 被引量:3

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摘要 2000年7月14日10:24UT一个X5.6级的耀斑暴发生在太阳中心子午线附近(AR 9077),同时伴随着一个朝向地球的CME事件及太阳高能粒子(Solar EnergeticParticle,SEP)事件.这次耀斑暴发及CME事件引起了地球磁层、电离层及高层大气的强烈扰动.中国“风云二号(B)”卫星上的高能粒子探测器(EPD)观测到SEP事件期间,同步轨道区高能质子、相对论电子有非常剧烈的增加.SEP期间,高能质子对相对论电子通量的探测造成严重的污染.结合“风云二号(B)”卫星上的高能粒子探测器(EPD)的特性,建立了一种从相对论电子通量探测中“清除”高能质子“污染”的方法,并对相对论电子通量的探测数据实施“清洁”处理.“纯净的”相对论电子通量探测结果显示,当行星际磁场南向时,上游太阳风中的高能电子使同步轨道区相对论电子通量有大幅度的增加.
出处 《中国科学(D辑)》 CSCD 北大核心 2003年第1期89-96,共8页 Science in China(Series D)
基金 国家自然科学基金资助项目(批准号:49774245 49934040)
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