Perpendicular transport of charged particles: Results for the unified nonlinear transport theory derived from the Newton-Lorentz equation

被引：4
作者：
Dosch, A. [1 ]
Shalchi, A. [2 ]
Zank, G. P. [1 ]
机构：
[1] Univ Alabama, CSPAR, Huntsville, AL 35805 USA
[2] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
来源：
ADVANCES IN SPACE RESEARCH | 2013年 / 52卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Cosmic rays; Diffusion; Diffusion coefficient; Mean free Path; Magnetic fields; Turbulence; GUIDING CENTER THEORY; MAGNETIC-FIELD; COSMIC-RAYS; SUBDIFFUSIVE TRANSPORT; DIFFUSION-COEFFICIENTS; RANDOM-WALK; TURBULENCE; ACCELERATION; MODEL; PERCOLATION;
D O I：
10.1016/j.asr.2013.05.016
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The perpendicular diffusion coefficient is calculated by combining a recently developed Unified Nonlinear Transport (UNLT) theory with the Newton-Lorentz equation. The total perpendicular mean free path can be described as a combination of a guiding center contribution and a microscopic contribution. It is shown that the total mean free path depends strongly. on the energy range of the turbulence power spectrum and on particle energy. Further, a slab/2D composite model is used to investigate the influence of each contribution to the total mean free path for a quasi-3D turbulence model. For pure 2D turbulence the UNLT reduces to the NLGC-theory. For pure slab turbulence the guiding center contribution is subdiffusive in accordance with simulations and the theorem on reduced dimensionality. Conversely, the microscopic contribution is non-zero, which has to be interpreted as normal diffusion. (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：936 / 950
页数：15
相关论文
共 52 条
[1]   LONG-TERM VARIATIONS OF INTERPLANETARY MAGNETIC-FIELD SPECTRA WITH IMPLICATIONS FOR COSMIC-RAY MODULATION [J].
BIEBER, JW ;
CHEN, JS ;
MATTHAEUS, WH ;
SMITH, CW ;
POMERANTZ, MA .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1993, 98 (A3) :3585-3603
[2]   PROTON AND ELECTRON MEAN FREE PATHS - THE PALMER CONSENSUS REVISITED [J].
BIEBER, JW ;
MATTHAEUS, WH ;
SMITH, CW ;
WANNER, W ;
KALLENRODE, MB ;
WIBBERENZ, G .
ASTROPHYSICAL JOURNAL, 1994, 420 (01) :294-306
[3]   Dominant two-dimensional solar wind turbulence with implications for cosmic ray transport [J].
Bieber, JW ;
Wanner, W ;
Matthaeus, WH .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1996, 101 (A2) :2511-2522
[4]   Toward a realistic diffusion tensor for galactic cosmic rays [J].
Burger, RA ;
Hattingh, M .
ASTROPHYSICAL JOURNAL, 1998, 505 (01) :244-251
[5]   Diffusive shock acceleration at interplanetary perpendicular shock waves: Influence of the large scale structure of turbulence on the maximum particle energy [J].
Dosch, A. ;
Shalchi, A. .
ADVANCES IN SPACE RESEARCH, 2010, 46 (09) :1208-1217
[6]   Relation between different theories for cosmic ray cross field diffusion [J].
Dosch, A. ;
Shalchi, A. ;
Weinhorst, B. .
ADVANCES IN SPACE RESEARCH, 2009, 44 (11) :1326-1336
[7]   Quasi-linear perpendicular diffusion coefficients of charged cosmic rays calculated directly from the Newton-Lorentz equation [J].
Dosch, A. ;
Shalchi, A. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 394 (04) :2089-2097
[8]   DIFFUSIVE IDEALIZATION OF CHARGED-PARTICLE TRANSPORT IN RANDOM MAGNETIC-FIELDS [J].
EARL, JA .
ASTROPHYSICAL JOURNAL, 1974, 193 (01) :231-242
[9]  
Florinski V., 2010, 38 COSPAR SCI ASS CO, V38, P1638
[10]   Dynamics of charged particles and perpendicular diffusion in turbulent magnetic field [J].
Gao, Xinliang ;
Lu, Quanming ;
Wang, Shui .
ASTROPHYSICS AND SPACE SCIENCE, 2011, 335 (02) :399-403
123456