Investigation of cubic non-linearity-driven electrostatic structures in the presence of double spectral index distribution function

doi:10.1002/ctpp.201900065

	Investigation of cubic non-linearity-driven electrostatic structures in the presence of double spectral index distribution function
	Qureshi, M. N. S.; Shah, K. H.; Shi, Jiankui; Masood, W.; Shah, H. A.
刊名	CONTRIBUTIONS TO PLASMA PHYSICS
	2019
页码	UNSP e201900065
关键词	(r q) distribution KdV equation modified KdV nonlinear ion acoustic waves nonthermal electrons
ISSN号	0863-1042
DOI	10.1002/ctpp.201900065
英文摘要	In this article, modified Korteweg-de Vries equation (which involves cubic non-linearity) was derived to study non-linear ion acoustic waves in a plasma in which electrons follow the double spectral index distribution function. The double spectral index distribution successfully apes the distribution functions that have been frequently observed in space plasmas. The spectral index r moulds the distribution function at low energy and by increasing its value, flatness of the distribution enhances. The spectral index r can also have negative values due to which distribution becomes spiky at low energies. The index q, on the other hand, controls the shape of the tail of distribution function. It has been shown that propagation of the solitary structures gets significantly altered by the choice of the double spectral indices, namely, r and q. A comparison was also made, using the parameters of the auroral zone, between the quadratic and cubic non-linearities-driven non-linear structures and it was shown that the solitary structures form on a much shorter scale for cubic non-linearity compared to their quadratic counterpart.
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/7256]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Qureshi, M. N. S.,Shah, K. H.,Shi, Jiankui,et al. Investigation of cubic non-linearity-driven electrostatic structures in the presence of double spectral index distribution function[J]. CONTRIBUTIONS TO PLASMA PHYSICS,2019:UNSP e201900065.
APA	Qureshi, M. N. S.,Shah, K. H.,Shi, Jiankui,Masood, W.,&Shah, H. A..(2019).Investigation of cubic non-linearity-driven electrostatic structures in the presence of double spectral index distribution function.CONTRIBUTIONS TO PLASMA PHYSICS,UNSP e201900065.
MLA	Qureshi, M. N. S.,et al."Investigation of cubic non-linearity-driven electrostatic structures in the presence of double spectral index distribution function".CONTRIBUTIONS TO PLASMA PHYSICS (2019):UNSP e201900065.