Effects of positron and two ion masses on the critical behaviour in superthermal collisional plasmas

Abstract

The Wave time dissipation characteristic of plasma solitons in a two ion-component fluids and two Kappa distributed electrons and positrons have been investigated. The damped-two dimensional Kadomtsev-Petviashvili (DKP) equation which embodied all wave damping information has been gained. The nonlinear condition for DKP criticality is calculated in the form of MDKP equation. By using D-F Earth-ionosphere regime parameters, the effects of the index of superthermality, collision frequencies, electron density, positron density and ionic mass ratios on the solitary formation of both structures of rarefactive (compressive) and critical waves are examined. It is a rating mention to signify that the outcomes performed here are applicable in the plasma of Earth’s ionosphere.

Shock electrostatic electron acoustic wave features in four-component electron–positron plasma

“…[1][2][3][4][5][6][7][8][9][10][11] Furthermore, the positron (electron) plasma emerges as a new major paradigm in the study of the solar system, pulsars, galactic nuclei, and the cosmos. [12][13][14][15][16][17][18] The positron-electron pair plasmas have published several significant publications in recent years that apply tokamak plasmas, magnetospheres, neutron stars, and active galactic nuclei. 16,18 However, oblique modulation and envelope solitons in the i-p-e pair have been studied and two modes are produced.…”

“…[12][13][14][15][16][17][18] The positron-electron pair plasmas have published several significant publications in recent years that apply tokamak plasmas, magnetospheres, neutron stars, and active galactic nuclei. 16,18 However, oblique modulation and envelope solitons in the i-p-e pair have been studied and two modes are produced. 19 In cosmic and astrophysical plasmas, a minor number of cold electrons and a large number of ions can existed together with hot p-e pairs.…”

Positron superthermality effects on the solitonic, dissipative, periodic waveforms for M-Kadomstev-Petviashvili-plasma-equation

“…Geotail observations, ISEE and Viking satellites refined that numerous possible electrostatic nonlinearly structures such as solitons, rational, explosive, rational soliton, shocklikes, and periodical propagating waves can exist in magnetospheres, Earth's foreshock and bow shocks, Ionospheres, auroral zone and magnetotail regions [42][43][44][45][46][47][48][49][50][51][52]. Many investigations aim to obtain solutions for nonlinear equations that describe these physical models as Jacobi elliptic double periodical waves, fractional shocks and rogue broadband electrostatic fields noise [9,16,[50][51][52][53]. So, in this work, our aim is applying mathematical method that can give different types of rational solitons and shocks that used in confirmation of various electrostatic noise regions in ionosphere.…”