Reconstructing spherical nonlinear force-free field in the solar corona

	Reconstructing spherical nonlinear force-free field in the solar corona
	Song, M. T.; Fang, C.; Zhang, H. Q.; Tang, Y. H.; Wu, S. T.; Zhang, Y. A.
刊名	ASTROPHYSICAL JOURNAL
	2007-09-01
卷号	666 期号:1 页码:491-500
关键词	MHD Sun : corona Sun : magnetic fields
ISSN号	0004-637X
英文摘要	We present a spherical nonlinear force-free field (NFFF) reconstructing method based on the photospheric vector magnetograms. The importance of this method is its ability to reveal the NFFF configurations, which is necessary for understanding the physical mechanisms of the initiation of the large-scale solar eruptions, such as coronal mass ejections and sympathetic flares. Using smooth continuous functions, the basic NFFF-governing partial differential equations in spherical coordinates reduce to a set of tractable ordinary differential equations. The numerical scheme used in this paper is similar to the recent local nonlinear force-free one developed by Song and coworkers. To illustrate this method, we give two test examples. One is to compute a well-known NFFF analytical solution given by Low & Lou. The other is for two active regions NOAA 10486 and NOAA 10488 observed on 2003 October 29. The results show that the transequatorial magnetic loops are revealed and coincided with some EUV Imaging Telescope loops.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	FREE MAGNETIC-FIELD ; CONSTANT ALPHA
收录类别	SCI
语种	英语
WOS记录号	WOS:000249058600046
公开日期	2012-02-05
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/2364]
专题	紫金山天文台_期刊（老文献）
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100080, Peoples R China 4.Univ Alabama, Ctr Space Plasma & Aeron Res, Dept Mech & Aerosp Engn, Huntsville, AL 35899 USA
推荐引用方式 GB/T 7714	Song, M. T.,Fang, C.,Zhang, H. Q.,et al. Reconstructing spherical nonlinear force-free field in the solar corona[J]. ASTROPHYSICAL JOURNAL,2007,666(1):491-500.
APA	Song, M. T.,Fang, C.,Zhang, H. Q.,Tang, Y. H.,Wu, S. T.,&Zhang, Y. A..(2007).Reconstructing spherical nonlinear force-free field in the solar corona.ASTROPHYSICAL JOURNAL,666(1),491-500.
MLA	Song, M. T.,et al."Reconstructing spherical nonlinear force-free field in the solar corona".ASTROPHYSICAL JOURNAL 666.1(2007):491-500.