THE MODIFICATION OF THE NONLINEAR GUIDING CENTER THEORY
文献类型：期刊论文
| 作者 | Qin, G. ; Zhang, L. -H.
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：国家空间科学中心
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