A multispecies magnetized collisional nonthermal plasma system, containing inertial ion species, noninertial electron species following nonthermal -distribution, and immobile dust particles, is considered to examine the characteristics of the dissipative dust-ion-acoustic soliton modes, theoretically and parametrically. The electrostatic solitary modes are found to be associated with the low-frequency dissipative dust-ion-acoustic solitary waves (DIASWs). The ion-neutral collision is taken into account, and the influence of ion-neutral collisional effects on the dynamics of dissipative DIASWs is investigated. It is reported that most of the plasma medium in space and laboratory are far from thermal equilibrium, and the particles in such plasma system are well fitted via the -nonthermal distribution than via the thermal Maxwellian distribution. The reductive perturbation approach is adopted to derive the damped KdV (dKdV) equation, and the solitary wave solution of the dKdV equation is derived via the tangent hyperbolic method to analyse the basic features (amplitude, width, speed, time evolution, etc.) of dissipative DIASWs. The propagation nature and also the basic features of dissipative DIASWs are seen to influence significantly due to the variation of the plasma configuration parameters and also due to the variation of the supethermality index in the considered plasma system. The implication of the results of this study could be useful for better understanding the electrostatic localized disturbances, in the ion length and time scale, in space and experimental dusty plasmas, where the presence of excess energetic electrons and ion-neutral collisional damping are accountable.

中文翻译：

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碰撞磁化非热等离子体中阻尼尘埃离子声孤子

一个多物种磁化碰撞非热等离子体系统，包含惯性离子物种、遵循非热分布的非惯性电子物种和不动的尘埃粒子，被认为是从理论上和参数上检查耗散尘埃-离子-声孤子模式的特征。发现静电孤立模式与低频耗散尘埃-离子-声孤立波 (DIASW) 相关。考虑了离子-中性碰撞，研究了离子-中性碰撞效应对耗散 DIASW 动力学的影响。据报道，空间和实验室中的大多数等离子体介质都远离热平衡，这种等离子体系统中的粒子通过-非热分布而不是通过热麦克斯韦分布。采用约简微扰法推导阻尼KdV（dKdV）方程，通过切线双曲线法推导dKdV方程的孤波解，分析其基本特征（幅度、宽度、速度、时间演化等）。耗散 DIASW。由于等离子体配置参数的变化以及超热指数的变化，可以看出耗散性 DIASW 的传播性质和基本特征会产生显着影响在所考虑的等离子系统中。本研究结果的含义可能有助于更好地理解离子长度和时间尺度、空间和实验尘埃等离子体中的静电局域扰动，其中存在过量高能电子和离子中性碰撞阻尼。