Amplitude-modulated electron-acoustic waves with bipolar ions and kappa-distributed positrons and warm electrons

被引：21

作者：

Goswami, Jyotirmoy ^{[1
]}

Sarkar, Jit ^{[1
]}

Chandra, Swarniv ^{[1
,2
,3
]}

Ghosh, Basudev ^{[1
,3
]}

机构：

[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India

[2] Govt Gen Degree Coll Kushmandi, Dept Phys, Dakshin Dinajpur 733121, India

[3] Inst Nat Sci & Appl Technol, Kolkata 700032, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2021年 / 95卷 / 02期

关键词：

Modulation instability; nonlinear Schrodinger equation: positive-negative ions; multicomponent plasma; 52; 35; Fp; Mw; 65; Vv; PLASMA; SOLITONS;

D O I：

10.1007/s12043-021-02085-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we have meticulously studied the amplitude modulation of electron-acoustic waves and the formation and properties of envelope solitons in a five-component complex plasma containing statistically kappa-distributed warm and cold electrons, kappa-distributed positrons and Boltzmann-distributed positive and negative ions. The picture considered here is very similar to solar atmosphere and planetary environments. The parametric dependence of modulational instability on kappa index, positron and electron densities, ion and reciprocal of positron temperatures has been studied in detail and the findings obtained here will be beneficial for further astrophysical investigations.

引用

页数：10

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