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利用Cluster卫星磁尾单事例研究具有复杂核心磁场结构的磁通量绳

王洋

王洋. 利用Cluster卫星磁尾单事例研究具有复杂核心磁场结构的磁通量绳[J]. 空间科学学报, 2019, 39(5): 603-612. doi: 10.11728/cjss2019.05.603
引用本文: 王洋. 利用Cluster卫星磁尾单事例研究具有复杂核心磁场结构的磁通量绳[J]. 空间科学学报, 2019, 39(5): 603-612. doi: 10.11728/cjss2019.05.603
WANG Yang. Magnetic Flux Rope with a Complicated Core Field by a Cluster Case[J]. Journal of Space Science, 2019, 39(5): 603-612. doi: 10.11728/cjss2019.05.603
Citation: WANG Yang. Magnetic Flux Rope with a Complicated Core Field by a Cluster Case[J]. Journal of Space Science, 2019, 39(5): 603-612. doi: 10.11728/cjss2019.05.603

利用Cluster卫星磁尾单事例研究具有复杂核心磁场结构的磁通量绳

doi: 10.11728/cjss2019.05.603
详细信息
    作者简介:

    王洋,wangyang09@mail.ustc.edu.cn

  • 中图分类号: P352

Magnetic Flux Rope with a Complicated Core Field by a Cluster Case

  • 摘要: 2002年8月28日09:50UT-10:50UT,Cluster卫星在地球磁尾观测到一次导向场磁场重联事件.卫星观测到磁场重联扩散区附近清晰的霍尔(Hall)四极型磁结构.由于导向场的存在,该四极型结构被扭曲变形.在该磁场重联事件中,卫星观测到多个磁通量绳,大部分磁通量绳的核心场极性与导向场极性一致.但是,其中一例磁通量绳的核心场结构极性较复杂.该例磁通量绳中心区域核心场强度出现峰值,核心场极性和导向场极性一致;中心以外区域的核心场极性和导向场极性相反.这种复杂核心场结构以前未见报道.通过最小方向导数法,发现该磁通量绳的轴向是弯曲的.C1和C3卫星穿越了磁通量绳弯曲部分,探测到核心场极性变化;C2和C4卫星位于C1和C3卫星的北侧,仅穿越了磁通量绳弯曲处的一部分,故核心场具有单极性.

     

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出版历程
  • 收稿日期:  2018-08-21
  • 修回日期:  2019-03-05
  • 刊出日期:  2019-09-15

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