The origin of primeval magnetic fields: Self-consistent simulation of magnetic field generation and amplification

被引：4
作者：
Wiechen, H [1 ]
Birk, GT [1 ]
Lesch, H [1 ]
机构：
[1] Univ Munich, Inst Astron & Astrophys, D-81679 Munich, Germany
来源：
PHYSICS OF PLASMAS | 2000年 / 7卷 / 02期
关键词：
D O I：
10.1063/1.873855
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A self-consistent numerical model of self-generation and amplification of magnetic fields in weakly ionized protogalactic matter is presented. This model is based on three-dimensional two-fluid simulations of the dynamics expected for protogalactic plasma-neutral gas clouds characterized by shear flow. Due to the friction between the ionized and neutral gas components self-generated magnetic fields of seed field order, i.e., 10(-17) G are created on time scales of 10(5) yr. Moreover, unstable Kelvin-Helmholtz modes are excited yielding a significant amplification of the field. (C) 2000 American Institute of Physics. [S1070-664X(00)05402-1].
引用
收藏
页码：701 / 705
页数：5
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