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地球磁层极尖区场向电子事件期间能量特性研究

史建魁 张子迎 TORKAR Klaus 王铮 程征伟 王国军

史建魁, 张子迎, TORKAR Klaus, 王铮, 程征伟, 王国军. 地球磁层极尖区场向电子事件期间能量特性研究[J]. 空间科学学报, 2016, 36(6): 849-856. doi: 10.11728/cjss2016.06.849
引用本文: 史建魁, 张子迎, TORKAR Klaus, 王铮, 程征伟, 王国军. 地球磁层极尖区场向电子事件期间能量特性研究[J]. 空间科学学报, 2016, 36(6): 849-856. doi: 10.11728/cjss2016.06.849
SHI Jiankui, ZHANG Ziying, TORKAR Klaus, WANG Zheng, CHENG Zhengwei, WANG Guojun. Study on Energy Features During a Field-Aligned Electron Events in the Cusp Region[J]. Journal of Space Science, 2016, 36(6): 849-856. doi: 10.11728/cjss2016.06.849
Citation: SHI Jiankui, ZHANG Ziying, TORKAR Klaus, WANG Zheng, CHENG Zhengwei, WANG Guojun. Study on Energy Features During a Field-Aligned Electron Events in the Cusp Region[J]. Journal of Space Science, 2016, 36(6): 849-856. doi: 10.11728/cjss2016.06.849

地球磁层极尖区场向电子事件期间能量特性研究

doi: 10.11728/cjss2016.06.849
基金项目: 

国家自然科学基金项目(41274146,41474137,41574150)和国家重点实验室专项基金项目共同资助

详细信息
    通讯作者:

    史建魁,E-mail:E-mail:jkshi@nssc.ac.cn

  • 中图分类号: P353.2

Study on Energy Features During a Field-Aligned Electron Events in the Cusp Region

  • 摘要: 根据Cluster卫星2001年9月30日在北半球极尖区观测到的一次强扰动场向电子事件数据,分析研究了这次事件期间场向电子的能量特性,讨论了场向电子对太阳风能量向磁层的传输和磁层-电离层耦合过程中能量传输的作用.分析认为,这次电子扰动事件期间电子速度和密度都具有很强的扰动变化,电子速度增加是一个主要特点.本次事件中低能段5~200eV和500~1500eV内的能谱分析结果表明,上行电子通量大于下行电子通量,上行电子主要来源于电离层,说明电离层上行电子在本次事件中具有非常活跃的作用.根据电离层中带电粒子的能量特征分析结果可知,这次事件中电离层起源的上行电子在上行过程中得到了加速.关于加速机制问题还有待深入研究.

     

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出版历程
  • 收稿日期:  2016-03-04
  • 修回日期:  2016-05-10
  • 刊出日期:  2016-11-15

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