Three-dimensional MHD simulation of CMEs in three-dimensional background solar wind with the self-consistent structure on the source surface as input: Numerical simulation of the January 1997 Sun-Earth connection event

	Three-dimensional MHD simulation of CMEs in three-dimensional background solar wind with the self-consistent structure on the source surface as input: Numerical simulation of the January 1997 Sun-Earth connection event
	Shen, F. ; Feng, X. ; Wu, S. T. ; Xiang, C. Q.
刊名	Journal of Geophysical Research-Space Physics
	2007
卷号	112 期号:A6 页码:A06109
关键词	coronal mass ejections interplanetary shock-waves heliospheric current sheet space weather magnetic-field magnetohydrodynamic simulation scintillation observations flux rope 1 au model
ISSN号	0148-0227
通讯作者	北京8701信箱
英文摘要	A three-dimensional time-dependent, numerical magnetohydrodynamic (MHD) model is used to investigate the propagation of coronal mass ejections (CMEs) in the nonhomogenous background solar wind flow. On the basis of the observations of the solar magnetic field and K-coronal brightness, the self-consistent structure on the source surface of 2.5 Rs is established with the help of MHD equations. Using the self-consistent source surface structures as initial-boundary conditions, we develop a three-dimensional MHD regional combination numerical model code to obtain the background solar wind from the source surface of 2.5 Rs to the Earth's orbit ( 215 Rs) and beyond. This model considers solar rotation and volumetric heating. Time-dependent variations of the pressure and velocity configured from a CME model at the inner boundary are applied to generate transient structures. The dynamical interaction of a CME with the background solar wind flow between 2.5 and 215 Rs ( 1 AU) is then investigated. We have chosen the well-defined halo-CME event of 6 - 12 January 1997 as a test case. Because detailed observations of this disturbance at 1 AU ( by WIND spacecraft) are available, this event gives us an excellent opportunity to verify our MHD methodology and to learn about the physical processes of the Sun-Earth connection. In this study, we find that this three-dimensional MHD model, with the self-consistent structures on the source surface as input, provides a relatively satisfactory comparison with the WIND spacecraft observations.
学科主题	空间物理
收录类别	SCI
原文出处	http://www.agu.org/pubs/crossref/2007/2006JA012164.shtml
语种	英语
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/1076]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Shen, F.,Feng, X.,Wu, S. T.,et al. Three-dimensional MHD simulation of CMEs in three-dimensional background solar wind with the self-consistent structure on the source surface as input: Numerical simulation of the January 1997 Sun-Earth connection event[J]. Journal of Geophysical Research-Space Physics,2007,112(A6):A06109.
APA	Shen, F.,Feng, X.,Wu, S. T.,&Xiang, C. Q..(2007).Three-dimensional MHD simulation of CMEs in three-dimensional background solar wind with the self-consistent structure on the source surface as input: Numerical simulation of the January 1997 Sun-Earth connection event.Journal of Geophysical Research-Space Physics,112(A6),A06109.
MLA	Shen, F.,et al."Three-dimensional MHD simulation of CMEs in three-dimensional background solar wind with the self-consistent structure on the source surface as input: Numerical simulation of the January 1997 Sun-Earth connection event".Journal of Geophysical Research-Space Physics 112.A6(2007):A06109.