论文标题
具有重核物种的热退化等离子体中的亚音速和超声核声波
Subsonic and supersonic nucleus-acoustic solitary waves in thermally degenerate plasmas with heavy nucleus species
论文作者
论文摘要
考虑了一个完全离子的多核等离子体系统（含有热退化的电子物种，非脱位温暖的光核物种和低致密的固定固定沉重核物种）。通过伪电势方法研究了这种等离子体系统中热和退化驱动的小和任意振幅亚音速和超音核孤立波的基本特征。还检查了固定的重核，非偏见和超相关的电子变性，以及光核温度对小而任意的振幅亚音速和超声核 - 声音孤立波的影响。发现（i）具有玻尔茨曼分布的电子物种的固定重核物种的存在支持亚音核 - 声音孤立波的存在，并且电子脱位和光核温度的影响降低了这些亚核核核核形成的可能性； （ii）随着重核物种的数量密度的上升，亚音核 - 声学孤立波的幅度（宽度）增加（减小）； （iii）在不相互归化的电子物种的情况下，超音核声音单孤波的幅度远小于超偏二聚体电子物种的幅度，但远大于等层电子物种的幅度。 （iv）它们在非相互归化的电子物种的宽度远比超相互归化的电子物种宽得多； （v）随着光核温度的升高，它们的振幅（宽度）降低（增加）。简要讨论了结果在天体物理，空间和实验室血浆情况中的应用。
A fully ionized multi-nucleus plasma system (containing thermally degenerate electron species, non-degenerate warm light nucleus species, and low dense stationary heavy nucleus species) is considered. The basic features of thermal and degenerate pressure driven small and arbitrary amplitude subsonic and supersonic nucleus-acoustic solitary waves in such a plasma system are studied by the pseudo-potential approach. The effects of stationary heavy nucleus, non-relativistically and ultra-relativistically electron degeneracies, and light nucleus temperature on small and arbitrary amplitude subsonic and supersonic nucleus-acoustic solitary waves are also examined. It is found that (i) the presence of stationary heavy nucleus species with Bolttzmann distributed electron species supports the existence of subsonic nucleus-acoustic solitary waves, and that the effects of electron degeneracies and light nucleus temperature reduce the possibility for the formation of these subsonic nucleus-acoustic solitary waves; (ii) the amplitude (width) of the subsonic nucleus-acoustic solitary waves increases (decreases) with the rise of the number density of heavy nucleus species; (iii) the amplitude of the supersonic nucleus-acoustic solitary waves in the situation of no-relativistically degenerate electron species is much smaller than that of ultra-relativistically degenerate electron species, but is much larger than that of isothermal electron species; (iv) their width in the situation of non-relativistically degenerate electron species is much wider than that of ultra-relativistically degenerate electron species; (v) their amplitude (width) decreases (increases) with the rise of the light nucleus temperature. The applications of the results in astrophysical, space, and laboratory plasma situations are briefly discussed.
