Large Amplitude Dust-acoustic Solitons in a Plasma Consisting of SuperthermalElectron-positron Pairs and Dust Particulates

E. Saberian, A. Esfandyari-Kalejahi, M. Afsari-Ghazi
{"title":"Large Amplitude Dust-acoustic Solitons in a Plasma Consisting of SuperthermalElectron-positron Pairs and Dust Particulates","authors":"E. Saberian, A. Esfandyari-Kalejahi, M. Afsari-Ghazi","doi":"10.2174/1876534301508010008","DOIUrl":null,"url":null,"abstract":"The occurrence and propagation of large amplitude dust-acoustic solitary waves (DASWs) are studied in a three-component plasma consisting of negatively charged dust grains and electron-positron pairs by employing a pseudopotential technique. Here, we focus on a superthermal plasma modeled by a -like distribution and consider a finite temperature for dust particulates. It is shown that the solitary waves with negative polarity are allowed in the system and there is a critical value for dust charge Z d above/below which the subsonic/supersonic solitary structures can propagate. In the case of negative fullerene ions, Z d = 1, it is observed that subsonic DASWs can propagate in the plasma. In addition, it is revealed that the propagation of double layers is not possible in this plasma system.","PeriodicalId":231555,"journal":{"name":"The Open Plasma Physics Journal","volume":"208 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Open Plasma Physics Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1876534301508010008","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7

Abstract

The occurrence and propagation of large amplitude dust-acoustic solitary waves (DASWs) are studied in a three-component plasma consisting of negatively charged dust grains and electron-positron pairs by employing a pseudopotential technique. Here, we focus on a superthermal plasma modeled by a -like distribution and consider a finite temperature for dust particulates. It is shown that the solitary waves with negative polarity are allowed in the system and there is a critical value for dust charge Z d above/below which the subsonic/supersonic solitary structures can propagate. In the case of negative fullerene ions, Z d = 1, it is observed that subsonic DASWs can propagate in the plasma. In addition, it is revealed that the propagation of double layers is not possible in this plasma system.
由超热电子-正电子对和尘埃粒子组成的等离子体中的大振幅尘声孤子
利用赝势技术研究了在带负电荷的尘埃颗粒和正电子对组成的三组分等离子体中,大振幅尘声孤波的发生和传播。在这里,我们将重点放在一个类似分布的超热等离子体上,并考虑粉尘颗粒的有限温度。结果表明,系统中允许存在负极性的孤立波,并且存在一个亚声速/超声速孤立结构传播的粉尘电荷zd临界值。在负富勒烯离子zd = 1的情况下,观察到亚音速DASWs可以在等离子体中传播。此外,还揭示了在该等离子体系统中不可能出现双层传输。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信