论文标题
1D平面，圆柱和球形亚音速孤独波在空间电子阳性灰尘等离子体系统中
1D planar, cylindrical and spherical subsonic solitary waves in space electron-ion-positive dust plasma systems
论文作者
论文摘要
考虑了含有等温惯性电子物种，冷惯性离子物种以及固定阳性（正值带电）灰尘物种的空间电子离子阳性尘埃等离子体系统。分别通过伪电势和还原性扰动方法研究了一维（1D）平面和非平面亚音单位波的基本特征。据观察，阳性灰尘物种的存在降低了离子声波的相位速度，因此在这样的空间尘埃等离子体系统中支持具有正波电势的亚音速孤波。据观察，圆柱和球形亚元音孤立波随时间显着发展，并且球形孤立波的时间演变要比圆柱形孤立波的速度快。该作品在许多空间尘土飞扬的等离子体系统中的应用，尤其是在地球的中层，彗星尾巴，木星的磁层等中。
The space electron-ion-positive dust plasma system containing isothermal inertialess electron species, cold inertial ion species, and stationary positive (positivively charged) dust species is considered. The basic features of one dimensional (1D) planar and nonplanar subsonic solitary waves are investigated by the pseudo-potential and reductive perturbation methods, respectively. It is observed that the presence of the positive dust species reduces the phase speed of the ion-acoustic waves, and consequently supports the subsonic solitary waves with the positive wave potential in such a space dusty plasma system. It is observed that the cylindrical and spherical subsonic solitary waves significantly evolve with time, and that the time evolution of the spherical solitary waves is faster than that of the cylindrical ones. The applications of the work in many space dusty plasma systems, particularly in Earth's mesosphere, cometary tails, Jupiter's magnetosphere, etc. are addressed.
