摘要： A general formulation is proposed for electrostatic solitons in multicomponent plasmas consisting of one cold species described by the fluid model and multiple hot components described by the kinetic equation. For hot species two types of generalized velocity distributions are adopted: the kappa function and the highly nonthermal distribution with two free parameters which incorporate the widely used nonthermal distribution proposed by Cairns et al (1995 Geophys. Res. Lett. 22 2709) as a special limit. The general expressions for the KdV equations and the Sagdeev potential, as well as the conditions for electrostatic solitons with positive or negative polarity, are derived, which may give rise to various solutions for acoustic solitons in multicomponent plasmas with generalized nonthermal velocity distributions. 其他題名： PPCF 其他題名： Plasma Phys. Control. Fusion 出版者： IOP Publishing 出版日期： 2015-09-01 出處： Plasma physics and controlled fusion, 2015-09, Vol.57 (9), p.95012-7 資源來源： Institute of Physics Journals 版權： 2015 IOP Publishing Ltd 識別號： ISSN: 0741-3335 識別號： ISSN: 1361-6587 識別號： EISSN: 1361-6587 識別號： DOI: 10.1088/0741-3335/57/9/095012 識別號： CODEN: PLPHBZ
