Cusp and Regular Ion-Acoustic Solitons

	Cusp and Regular Ion-Acoustic Solitons
	Qureshi, M. N. S.; Shi, Jiankui; Shah, H. A.
刊名	BRAZILIAN JOURNAL OF PHYSICS
	2012
卷号	42 期号:1-2 页码:48-54
关键词	Cusp soliton Ion-acoustic waves
ISSN号	0103-9733
通讯作者	Qureshi, MNS (reprint author), Govt Coll Univ, Dept Phys, Lahore 54000, Pakistan.
中文摘要	Cups and regular smooth solitons are studied using the fluid model in cylindrical geometry for parallel propagating ion-acoustic waves in a low beta plasma. It is found that smooth solitons only occur in the supersonic regime, whereas cusp solitons occur both in supersonic and subsonic regimes. In the supersonic regime, the amplitude and the width of cusp solitons increase when the Mach number M increases and initial electric field E-0 decreases. However, the amplitude of smooth regular solitons increases and their width decreases when E-0 increases and M decreases. For the subsonic case, both the amplitude as well as the width of a cusp solitons increase when M increases and E-0 decreases. Corresponding to these cusp and regular solitons, bipolar electric field structures are also studied. These results may be helpful in understanding the properties of ion-acoustic regular and cusp solitons in space plasmas.
英文摘要	Cups and regular smooth solitons are studied using the fluid model in cylindrical geometry for parallel propagating ion-acoustic waves in a low beta plasma. It is found that smooth solitons only occur in the supersonic regime, whereas cusp solitons occur both in supersonic and subsonic regimes. In the supersonic regime, the amplitude and the width of cusp solitons increase when the Mach number M increases and initial electric field E-0 decreases. However, the amplitude of smooth regular solitons increases and their width decreases when E-0 increases and M decreases. For the subsonic case, both the amplitude as well as the width of a cusp solitons increase when M increases and E-0 decreases. Corresponding to these cusp and regular solitons, bipolar electric field structures are also studied. These results may be helpful in understanding the properties of ion-acoustic regular and cusp solitons in space plasmas.
学科主题	空间物理
收录类别	SCI
资助信息	China National Natural Science Foundation [40874084, 40921063]; State Key Laboratories of China
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3185]
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.,Shi, Jiankui,Shah, H. A.. Cusp and Regular Ion-Acoustic Solitons[J]. BRAZILIAN JOURNAL OF PHYSICS,2012,42(1-2):48-54.
APA	Qureshi, M. N. S.,Shi, Jiankui,&Shah, H. A..(2012).Cusp and Regular Ion-Acoustic Solitons.BRAZILIAN JOURNAL OF PHYSICS,42(1-2),48-54.
MLA	Qureshi, M. N. S.,et al."Cusp and Regular Ion-Acoustic Solitons".BRAZILIAN JOURNAL OF PHYSICS 42.1-2(2012):48-54.