Effect of nonthermality of electrons on the speed and shape of ion-acoustic solitary waves in a warm plasma

被引：9
作者：
Abdelwahed, H. G. [1 ,2 ]
El-Shewy, E. K. [2 ]
机构：
[1] Salman Bin Abdulaziz Univ, Coll Sci & Humanitarian Studies, Dept Phys, Al Kharj, Saudi Arabia
[2] Mansoura Univ, Fac Sci, Theoret Phys Grp, Mansoura 35516, Egypt
来源：
PHYSICS OF PLASMAS | 2012年 / 19卷 / 07期
关键词：
SOLITONS;
D O I：
10.1063/1.4731715
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：
Nonlinear ion-acoustic solitary waves in a warm collisionless plasma with nonthermal electrons are investigated by a direct analysis of the field equations. The Sagdeev's potential is obtained in terms of ion acoustic speed by simply solving an algebraic equation. It is found that the amplitude and width of the ion-acoustic solitons as well as the parametric regime where the solitons can exist are sensitive to the population of energetic non-thermal electrons. The soliton and double layer solutions are obtained as a small amplitude approximation. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4731715]
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页数：6
相关论文
共 28 条
[1]  
[Anonymous], 1982, IEEE T PLASMA SCI
[2]   OBSERVATIONS OF WEAK DOUBLE-LAYERS ON AURORAL FIELD LINES [J].
BOSTROM, R .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 1992, 20 (06) :756-763
[3]   ELECTROSTATIC SOLITARY STRUCTURES IN NONTHERMAL PLASMAS [J].
CAIRNS, RA ;
MAMUM, AA ;
BINGHAM, R ;
BOSTROM, R ;
DENDY, RO ;
NAIRN, CMC ;
SHUKLA, PK .
GEOPHYSICAL RESEARCH LETTERS, 1995, 22 (20) :2709-2712
[4]   Ion-acoustic solitons in a magnetized plasma with nonthermal electrons [J].
Cairns, RA ;
Mamun, AA ;
Bingham, R ;
Shukla, PK .
PHYSICA SCRIPTA, 1996, T63 :80-86
[5]   Effect of electron inertia on the speed and shape of ion-acoustic solitary waves in plasma [J].
Chatterjee, P ;
Das, B .
PHYSICS OF PLASMAS, 2004, 11 (07) :3616-3620
[6]   FREJA MULTIPROBE OBSERVATIONS OF ELECTROSTATIC SOLITARY STRUCTURES [J].
DOVNER, PO ;
ERIKSSON, AI ;
BOSTROM, R ;
HOLBACK, B .
GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (17) :1827-1830
[7]   Head-on collision of ion-acoustic solitary waves in multicomponent plasmas with positrons [J].
El-Shamy, E. F. ;
Sabry, R. ;
Moslem, W. M. ;
Shukla, P. K. .
PHYSICS OF PLASMAS, 2010, 17 (08)
[8]   Linear and nonlinear properties of electron-acoustic solitary waves with non-thermal electrons [J].
El-Shewy, E. K. .
CHAOS SOLITONS & FRACTALS, 2007, 31 (04) :1020-1023
[9]   Weakly relativistic effect on the modulation of nonlinear ion-acoustic waves in a warm plasma [J].
ElLabany, SK .
JOURNAL OF PLASMA PHYSICS, 1995, 54 :295-308
[10]   Nonlinear electron-acoustic solitary waves in a relativistic electron-beam plasma system with non-thermal electrons [J].
Elwakil, S. A. ;
Zahran, M. A. ;
El-Shewy, E. K. .
PHYSICA SCRIPTA, 2007, 75 (06) :803-808
123