The nonlinear propagation of dust-acoustic waves (DAWs) and associated dust-acoustic rogue waves (DARWs), which are governed by the nonlinear Schrödinger equation, is theoretically investigated in a four-component plasma medium containing inertial warm negatively charged dust grains and inertialess non-thermal distributed electrons as well as isothermal positrons and ions. The modulationally stable and unstable parametric regimes of DAWs are numerically studied for the plasma parameters. Furthermore, the effects of temperature ratios of ion-to-electron and ion-to-positron, and the number density of ion and dust grains on the DARWs are investigated. It is observed that physical parameters play very crucial roles in the formation of DARWs. These results may be useful in understanding the electrostatic excitations in dusty plasmas in space and laboratory situations.

中文翻译：

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非热等离子体中的尘埃声流氓波

由非线性薛定谔方程控制的尘埃声波 (DAW) 和相关尘埃声波 (DARW) 的非线性传播，在包含惯性暖带负电荷尘埃颗粒和无惯性的四组分等离子体介质中进行了理论上的研究。非热分布电子以及等温正电子和离子。数值研究了 DAW 的调制稳定和不稳定参数制度的等离子体参数。此外，还研究了离子与电子和离子与正电子的温度比以及离子和尘埃颗粒的数量密度对 DARW 的影响。据观察，物理参数在 DARW 的形成中起着非常关键的作用。