On the propagation of dynamical waves in complex cometary plasma environments with thermal heavy ions and non-extensive light species

A variety of dust acoustic (DA) waves like solitons, shock waves, and double-layer structures can generate and propagate in dusty plasma systems depending on the plasma composition and their particle distributions. In this paper, a refined fluid model is proposed to provide a general description of...

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Veröffentlicht in:Physics of fluids (1994) 2024-10, Vol.36 (10)
Hauptverfasser: Abdelwahed, H. G., Mahmoud, Abeer A.
Format: Artikel
Sprache:eng
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Zusammenfassung:A variety of dust acoustic (DA) waves like solitons, shock waves, and double-layer structures can generate and propagate in dusty plasma systems depending on the plasma composition and their particle distributions. In this paper, a refined fluid model is proposed to provide a general description of all possible DA waves that may propagate in complex dusty plasmas with thermally distributed heavy ions and non-extensive light species. The DA waves are characterized using the Further-Burger equation with three newly induced arbitrary parameters, enabling the identification of the different plasma waves. The DA wave's structures are found to be highly sensitive to the thermal parameter σ of the heavy ions and the non-extensive parameter “q” of the light species. Moreover, these two parameters act as key factors that control the polarity of the waves around their critical values, i.e., around σ  = 0.11 and “q = 1.146.” The potential relevance of our results in space and astrophysics plasma setups is briefly discussed.
ISSN:1070-6631
1089-7666
DOI:10.1063/5.0227044