dc.contributor.author |
Lakhina, G.S. |
|
dc.contributor.author |
Singh, S.V. |
|
dc.contributor.author |
Kakad, Amar |
|
dc.date.accessioned |
2015-10-27T06:38:58Z |
|
dc.date.accessioned |
2021-02-12T09:37:04Z |
|
dc.date.available |
2015-10-27T06:38:58Z |
|
dc.date.available |
2021-02-12T09:37:04Z |
|
dc.date.issued |
2011 |
|
dc.identifier.citation |
Adv. Sp. Res., v.47, p.1558-1567, 2011, doi: 10.1016/j.asr.2010.12.013 |
en_US |
dc.identifier.uri |
http://localhost:8080/xmlui/handle/123456789/655 |
|
dc.description.abstract |
A general model for the ion- and electron-acoustic solitons and double layers in a multi-component unmagnetized plasma consisting of background electrons, counter-streaming electron beams and ions is discussed. The model is based on the multi-fluid equations and the Poisson equation, and uses the Sagdeev pseudo-potential techniques. For identical counter-streaming electron beams and depending upon the plasma parameters, three types of solutions, namely, ion-acoustic, slow and fast electron-acoustic soliton/double layer, are possible. Generally, the ion acoustic solitons have positive potentials, slow-electron acoustic solitons have negative potentials and fast electron-acoustic solitons and double layers can have either positive or negative potentials depending on the core electron density. As beam speed is increased, first ion-acoustic and then slow electron-acoustic solitons disappear. At large beam speed, only fast electron-acoustic solitons/double layers survive. The results may be relevant to the observations of the electrostatic solitary waves (ESWs) observed in the Earth’s magnetosphere. |
en_US |
dc.language.iso |
en |
en_US |
dc.subject |
Electrostatic solitary waves |
en_US |
dc.subject |
Solitons and double layers in space plasmas |
en_US |
dc.subject |
Nonlinear ion- and electron-acoustic waves |
en_US |
dc.subject |
Space plasmas |
en_US |
dc.subject |
Sagdeev pseudo-potential techniques |
en_US |
dc.subject |
Poisson equation |
en_US |
dc.subject |
Multi-fluid equations |
en_US |
dc.subject |
Magnetosphere |
en_US |
dc.title |
Ion- and electron-acoustic solitons and double layers in multi-component space plasmas |
en_US |
dc.type |
Article |
en_US |
dc.identifier.accession |
091163 |
|