Formation of Alfvénic supernonlinear waves in a plasma containing double spectral distributed electrons  

作　　者：A A El-Tantawy W F El-Taibany S K El-Labany A M Abdelghany 

机构地区：[1]Department of Physics,Faculty of Science,Damietta University,New Damietta,PO Box 34517,Egypt [2]Center of Space Research and Its Application,Damietta University,New Damietta,PO Box 34517,Egypt

出　　处：《Communications in Theoretical Physics》2024年第12期138-147,共10页理论物理通讯(英文版)

摘　　要：The characteristics of nonlinear and supernonlinear Alfvén waves propagating in a multicomponent plasma composed of a double spectral electron distribution and positive and negative ions were investigated.The Sagdeev technique was employed,and an energy equation was derived.Our findings show that the proposed system reveals the existence of a double-layer solution,periodic,supersoliton,and superperiodic waves.The phase portrait and potential analysis related to these waves were investigated to study the main features of existing waves.It was also found that decreasing the electron temperature helps the superperiodic structure to be excited in our plasma model.Our results help interpret the nonlinear and supernonlinear features of the recorded Alfvén waves propagating in the ionosphere D-region.

关 键 词：nonlinear waves Alfvén waves supernonlinear waves Sagdeev method double spectral distribution 

分 类 号：O441.4[理学—电磁学] O53[理学—物理]