Alfven intermittent turbulence in space plasmas

被引：0
|
作者：
Rempel, EL
Chian, ACL
Preto, AJ
Stephany, S
机构：
[1] Natl Inst Space Res INPE, BR-12227010 Sao Jose Dos Campos, SP, Brazil
[2] World Inst Space Environm Res, BR-12227010 Sao Jose Dos Campos, SP, Brazil
来源：
MAGNETIC FIELDS IN THE UNIVERSE: FROM LABORATORY AND STARS TO PRIMORDIAL STRUCTURES | 2005年 / 784卷
关键词：
solar wind plasmas; Alfven waves; intermittency; nonlinear dynamics; chaos; SOLAR-WIND; WAVES; PROPAGATION; ATTRACTORS; ENTROPY;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the onset of intermittent chaos in the phase dynamics of nonlinear Alfven waves in the solar wind by using the Kuramoto-Sivashinsky (KS) equation as a model for phase dynamics. We focus on the role of nonattracting chaotic solutions of the KS equation, known as chaotic saddles, in the transition from weak chaos to strong chaos and show how two of these unstable chaotic saddles can interact to produce the plasma intermittency observed in the strongly chaotic regimes. The dynamical systems approach discussed in this work can lead to a better understanding of the mechanisms responsible for intermittency in solar wind plasmas.
引用
收藏
页码：79 / 89
页数：11
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