The Compressive and rarefactive dust acoustic solitary waves with two different temperatures for both electrons and ions

TL;DR

This paper investigates the nonlinear behavior of dust acoustic solitary waves in a dusty plasma with electrons and ions at two different temperatures, deriving a K-dV equation to describe their properties.

Contribution

It introduces a model considering two-temperature electrons and ions, deriving the K-dV equation for DASWs, and analyzing how temperature ratios influence wave characteristics.

Findings

DASW amplitude and width depend on temperature ratios and ion densities.

Both positive and negative potential DASWs can occur.

Wave properties are significantly affected by temperature differences.

Abstract

The nonlinear propagation of dust acoustic solitary waves (DASWs) in an unmagnetized dusty plasma consisting of negatively charged dust fluid Boltzmann distributed electrons with two different temperatures Boltzmann distributed ions with two distinct temperatures are investigated. By employing the reductive perturbation technique that is valid for a small but finite amplitude limit the Korteweg de Vries (K-dV) equation have been derived. Our results reveal that the main quantities of DASWs (such as amplitude and width) are affected by two different temperatures electrons (as well as ions) temperature ratios and the number densities of two species of ions. It is shown that both positive and negative potential DASWs occur in this case.