Analytical investigation of the two-dimensional cosmic ray Fokker-Planck equation

被引：47

作者：

Shalchi, A ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany

来源：

ASTRONOMY & ASTROPHYSICS | 2006年 / 448卷 / 03期

关键词：

cosmic rays; turbulence; diffusion;

D O I：

10.1051/0004-6361:20053664

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The basic equation to describe transport of cosmic rays in a random magnetic field parallel to a magnetic background field is the two-dimensional Fokker-Planck equation. In this paper an investigation of this equation is presented to improve understanding of particle transport, to depict the process of parallel diffusion and to improve recently derived nonlinear transport theories.

引用

页码：809 / 816

页数：8

共 8 条

[1] Scattering of energetic particles by anisotropic magnetohydrodynamic turbulence with a Goldreich-Sridhar power spectrum [J].

Chandran, BDG .

PHYSICAL REVIEW LETTERS, 2000, 85 (22) :4656-4659

[2] DIFFUSIVE IDEALIZATION OF CHARGED-PARTICLE TRANSPORT IN RANDOM MAGNETIC-FIELDS [J].

EARL, JA .

ASTROPHYSICAL JOURNAL, 1974, 193 (01) :231-242

[3] COSMIC-RAY PROPAGATION .1. CHARGED PARTICLES IN A RANDOM MAGNETIC FIELD [J].

JOKIPII, JR .

ASTROPHYSICAL JOURNAL, 1966, 146 (02) :480-&

[4] Nonlinear collisionless perpendicular diffusion of charged particles [J].

Matthaeus, WH ;

Qin, G ;

Bieber, JW ;

Zank, GP .

ASTROPHYSICAL JOURNAL, 2003, 590 (01) :L53-L56

[5]

Schlickeiser R., 2002, ASTR AST LI, P519

[6] Second-order quasilinear theory of cosmic ray transport [J].

Shalchi, A .

PHYSICS OF PLASMAS, 2005, 12 (05) :1-10

[7] Time-dependent transport and subdiffusion of cosmic rays [J].

Shalchi, A .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2005, 110 (A9)

[8] Nonlinear parallel and perpendicular diffusion of charged cosmic rays in weak turbulence [J].

Shalchi, A ;

Bieber, JW ;

Matthaeus, WH ;

Qin, G .

ASTROPHYSICAL JOURNAL, 2004, 616 (01) :617-629

← 1 →