Modulational behavior of electromagnetic waves in ultra-relativistic electron-positron plasmas

被引：1
|
作者：
Liu, Y. [1 ]
Liu, S. Q. [2 ]
Dai, B. [1 ]
机构：
[1] Nantong Univ, Sch Sci, Nantong 226019, Peoples R China
[2] Nanchang Univ, Sch Sci, Nanchang 330047, Peoples R China
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2013年 / 346卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Modulational instability; Electromagnetic wave; Electron-positron plasma; Collapse; GAMMA-RAY BURSTS; PAIR PLASMA; PULSAR MAGNETOSPHERES; LOCALIZED STRUCTURES; NONLINEAR DYNAMICS;
D O I：
10.1007/s10509-013-1416-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The dynamical properties of electromagnetic (EM) waves in ultra-relativistic electron-positron (EP) plasmas are analytically investigated on the basis of the nonlinear governing equations obtained from a kinetic way. It is shown that the EM wave envelope will collapse and be trapped into a localized region for the modulation interaction with low frequency density variation induced by ponderomotive force. The correlation between the localized strong wave field and the pulsar radio emission is discussed.
引用
收藏
页码：149 / 153
页数：5
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