Numerical study of the reconnection process between magnetic cloud and heliospheric current sheet

doi:10.1051/0004-6361/201832951

	Numerical study of the reconnection process between magnetic cloud and heliospheric current sheet
	Zhang, Man; Zhou, Yu Fen; Feng, Xue Shang; Lie, Bo; Xiong, Ming
刊名	ASTRONOMY & ASTROPHYSICS
	2018
卷号	619 页码:A82
关键词	Sun: coronal mass ejections (CMEs) Sun: heliosphere
ISSN号	1432-0746
DOI	10.1051/0004-6361/201832951
英文摘要	In this paper, we have used a three-dimensional numerical magnetohydrodynamics model to study the reconnection process between magnetic cloud and heliospheric current sheet. Within a steady-state heliospheric model that gives a reasonable large-scale structure of the solar wind near solar minimum, we injected a spherical plasmoid to mimic a magnetic cloud. When the magnetic cloud moves to the heliospheric current sheet, the dynamic process causes the current sheet to become gradually thinner and the magnetic reconnection begin. The numerical simulation can reproduce the basic characteristics of the magnetic reconnection, such as the correlated/anticorrelated signatures in V and B passing a reconnection exhaust. Depending on the initial magnetic helicity of the cloud, magnetic reconnection occurs at points along the boundary of the two systems where antiparallel field lines are forced together. We find the magnetic filed and velocity in the MC have a effect on the reconnection rate, and the magnitude of velocity can also effect the beginning time of reconnection. These results are helpful in understanding and identifying the dynamic process occurring between the magnetic cloud and the heliospheric current sheet.
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6564]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Zhang, Man,Zhou, Yu Fen,Feng, Xue Shang,et al. Numerical study of the reconnection process between magnetic cloud and heliospheric current sheet[J]. ASTRONOMY & ASTROPHYSICS,2018,619:A82.
APA	Zhang, Man,Zhou, Yu Fen,Feng, Xue Shang,Lie, Bo,&Xiong, Ming.(2018).Numerical study of the reconnection process between magnetic cloud and heliospheric current sheet.ASTRONOMY & ASTROPHYSICS,619,A82.
MLA	Zhang, Man,et al."Numerical study of the reconnection process between magnetic cloud and heliospheric current sheet".ASTRONOMY & ASTROPHYSICS 619(2018):A82.