• 主题
高级搜索  >
历史搜索 清空历史
首页> 中文期刊>天文和天体物理学研究 >A New Method of Identifying 3D Null Points in Solar Vector Magnetic Fields

A New Method of Identifying 3D Null Points in Solar Vector Magnetic Fields

     
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Employing the Poincaré index of isolated null-points in a vector field,we worked out a mathematical method of searching for 3D null-points in coronal magnetic fields. After introducing the relevant differential topology, we test the method by using the analytical model of Brown & Priest. The location of nullpoint identified by our method coincides precisely with the analytical solution.Finally we apply the method to the 3D coronal magnetic fields reconstructed from an observed MDI magnetogram of a super-active region (NOAA 10488). We find that the 3D null-point seems to be a key element in the magnetic topology associated with flare occurrence.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号