Data-driven magnetohydrodynamic modelling of a flux-emerging active region leading to solar eruption

	Data-driven magnetohydrodynamic modelling of a flux-emerging active region leading to solar eruption
	Jiang, Chaowei; Wu, S. T.; Feng, Xuesheng; Hu, Qiang
刊名	NATURE COMMUNICATIONS
	2016
卷号	7
ISSN号	2041-1723
通讯作者	Jiang, CW ; Feng, XS (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, SIGMA Weather Grp, 1 Nan Er Tiao, Beijing 100190, Peoples R China. ; Jiang, CW (reprint author), Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
英文摘要	Solar eruptions are well-recognized as major drivers of space weather but what causes them remains an open question. Here we show how an eruption is initiated in a non-potential magnetic flux-emerging region using magnetohydrodynamic modelling driven directly by solar magnetograms. Our model simulates the coronal magnetic field following a long-duration quasi-static evolution to its fast eruption. The field morphology resembles a set of extreme ultraviolet images for the whole process. Study of the magnetic field suggests that in this event, the key transition from the pre-eruptive to eruptive state is due to the establishment of a positive feedback between the upward expansion of internal stressed magnetic arcades of new emergence and an external magnetic reconnection which triggers the eruption. Such a nearly realistic simulation of a solar eruption from origin to onset can provide important insight into its cause, and also has the potential for improving space weather modelling.
收录类别	SCI ; EI
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/5439]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Jiang, Chaowei,Wu, S. T.,Feng, Xuesheng,et al. Data-driven magnetohydrodynamic modelling of a flux-emerging active region leading to solar eruption[J]. NATURE COMMUNICATIONS,2016,7.
APA	Jiang, Chaowei,Wu, S. T.,Feng, Xuesheng,&Hu, Qiang.(2016).Data-driven magnetohydrodynamic modelling of a flux-emerging active region leading to solar eruption.NATURE COMMUNICATIONS,7.
MLA	Jiang, Chaowei,et al."Data-driven magnetohydrodynamic modelling of a flux-emerging active region leading to solar eruption".NATURE COMMUNICATIONS 7(2016).