Simulation studies of the magnetic field generation in cosmological plasmas

被引:53
作者
Sakai, JI [1 ]
Schlickeiser, R
Shukla, PK
机构
[1] Toyama Univ, Fac Engn, Lab Plasma Astrophys, Toyama 9308555, Japan
[2] Ruhr Univ Bochum, Inst Theoret Phys 4, D-44780 Bochum, Germany
[3] Ruhr Univ Bochum, Ctr Plasma Sci & Astrophys, D-44780 Bochum, Germany
关键词
D O I
10.1016/j.physleta.2004.08.007
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present computer simulation studies of the magnetic field generation by colliding electron clouds in cosmic plasmas. Simulation results exhibit purely growing magnetic fields, generation of electrostatic waves and subsequent electron energization in different regimes. The linear growth and saturated magnetic fields in our simulations are in good agreement with recent theoretical predictions of the Weibel instability induced magnetic fields in cosmological plasmas. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:384 / 389
页数:6
相关论文
共 20 条
[1]  
Akhiezer A. I., 1975, Plasma Electrodynamics
[2]  
Buneman O., 1993, COMPUTER SPACE PLASM, P67
[3]   Where are the baryons? [J].
Cen, RY ;
Ostriker, JP .
ASTROPHYSICAL JOURNAL, 1999, 514 (01) :1-6
[4]  
DAGLOV AD, 2002, PHYS REV LETT, V88, P1136
[5]   Magnetic fields in the early Universe [J].
Grasso, D ;
Rubinstein, HR .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 348 (03) :163-266
[6]   Gamma-ray burst phenomenology, shock dynamo, and the first magnetic fields [J].
Gruzinov, A .
ASTROPHYSICAL JOURNAL, 2001, 563 (01) :L15-L18
[7]   Galaxies and the magnetization of intergalactic space [J].
Kronberg, PP .
PHYSICS OF PLASMAS, 2003, 10 (05) :1985-1991
[8]   Intergalactic magnetic fields [J].
Kronberg, PP .
PHYSICS TODAY, 2002, 55 (12) :40-46
[9]   Generation of magnetic fields in the relativistic shock of gamma-ray burst sources [J].
Medvedev, MV ;
Loeb, A .
ASTROPHYSICAL JOURNAL, 1999, 526 (02) :697-706
[10]   Intergalactic shock acceleration and the cosmic gamma-ray background [J].
Miniati, F .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 337 (01) :199-208