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.
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页码：149 / 153
页数：5
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