NAOC Open IR  > 太阳物理研究部
A new method of identifying 3D null points in solar vector magnetic fields
Zhao, H; Wang, JX; Zhang, J; Xiao, CJ
2005
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
Volume5Issue:5Pages:443-447
AbstractEmploying the Poincare 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 null-point 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.
KeywordSun : Flares Sun : Corona Sun : Magnetic Fields
Indexed BySCI
Language英语
WOS IDWOS:000232872000001
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8957
Collection太阳物理研究部
AffiliationChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Zhao, H,Wang, JX,Zhang, J,et al. A new method of identifying 3D null points in solar vector magnetic fields[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2005,5(5):443-447.
APA Zhao, H,Wang, JX,Zhang, J,&Xiao, CJ.(2005).A new method of identifying 3D null points in solar vector magnetic fields.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,5(5),443-447.
MLA Zhao, H,et al."A new method of identifying 3D null points in solar vector magnetic fields".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 5.5(2005):443-447.
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