THE MODIFICATION OF THE NONLINEAR GUIDING CENTER THEORY

	THE MODIFICATION OF THE NONLINEAR GUIDING CENTER THEORY
	Qin, G.; Zhang, L. -H.
刊名	ASTROPHYSICAL JOURNAL
	2014
卷号	787 期号:1 页码:12
关键词	acceleration of particles cosmic rays diffusion Sun: particle emission turbulence
ISSN号	0004-637X
通讯作者	Qin, G (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, POB 8701, Beijing 100190, Peoples R China.
英文摘要	We modify the NonLinear Guiding Center theory for perpendicular diffusion by replacing the spectral amplitude of the two-component model of magnetic turbulence with that of the two-dimensional model (following Shalchi), and replacing the constant a(2), which indicates the degree particles following the magnetic field line, with the variable a(2) as a function of the magnetic turbulence. We combine the modified model with the NonLinear PArallel diffusion theory to solve perpendicular and parallel diffusion coefficients simultaneously. It is shown that the new model agrees better with simulations. Furthermore, we fit the numerical results of the new model with polynomials, so that the parallel and perpendicular diffusion coefficients can be calculated directly without iteration of integrations, and many numerical calculations can be reduced.
学科主题	空间物理
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/2753]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Qin, G.,Zhang, L. -H.. THE MODIFICATION OF THE NONLINEAR GUIDING CENTER THEORY[J]. ASTROPHYSICAL JOURNAL,2014,787(1):12.
APA	Qin, G.,&Zhang, L. -H..(2014).THE MODIFICATION OF THE NONLINEAR GUIDING CENTER THEORY.ASTROPHYSICAL JOURNAL,787(1),12.
MLA	Qin, G.,et al."THE MODIFICATION OF THE NONLINEAR GUIDING CENTER THEORY".ASTROPHYSICAL JOURNAL 787.1(2014):12.