A more general and realistic four‐component magnetized plasma medium consisting of opposite polarity ions and nonthermal distributed positrons and electrons is considered to investigate the stable/unstable frequency regimes of modulated ion‐acoustic waves (IAWs) in the D‐F regions of Earth's ionosphere. A (3 + 1)‐dimensional nonlinear Schrödinger equation, which leads to the modulation instability (MI) of IAWs, is derived. The parametric regimes for the existence of the MI, first‐ and second‐order rogue waves, and also their basic features (viz., amplitude, width, and speed) are found to be significantly modified by the effect of physical plasma parameters and external magnetic field. It is found that the nonlinearity of the different types of electronegative plasma system depends on the positive to negative ion mass ratio. It is also shown that the presence of nonthermal distributed electrons and positrons modifies the nature of the MI of the modulated IAWs. The implication of our results for the laboratory plasma [e.g., (Ar⁺, F⁻) electronegative plasma] and space plasma [e.g., (H⁺, H⁻), () electronegative plasma in D‐F regions of Earth's ionosphere] are briefly discussed.

中文翻译：

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电子-正电子-离子磁等离子体中的离子声流浪动力学

为了研究地球电离层D-F区域中调制离子声波（IAW）的稳定/不稳定频率范围，可以考虑使用一种由极性相反的离子以及非热分布的正电子和电子组成的更通用，更现实的四成分磁化等离子体介质。 。A （3 +1）推导了导致IAW调制不稳定性（MI）的二维非线性Schrödinger方程。发现物理等离子体参数和外部效应的影响显着修改了MI，一阶和二阶流氓波的存在的参数形式及其基本特征（即幅度，宽度和速度）。磁场。发现不同类型的负电等离子体系统的非线性取决于正负离子质量比。还表明，非热分布电子和正电子的存在改变了调制IAW的MI的性质。我们的研究结果为实验室血浆[言下之意例如，（氩⁺，˚F ^-）简要讨论了）和空间等离子体[例如，地球电离层D-F区的（H ⁺，H ^-），（）负电性等离子体]。