Abstract By introducing the Kappa distribution function () and considering the dimensionless variables and applying them to the Poisson equation, the Bohm sheath equation in a plasma is obtained. We know the above distribution function has two important factors: 1-the invariant kappa spectral index (), 2-the number of degrees of freedom (). In this regard, we considered soliton with positive and negative potentials in the two areas of the solar structure Heliosphere (positive potential: near equilibrium areas and negative potential Heliosheath: out of equilibrium areas ). Then, the Korteweg-de-Vries equation (KdV) is obtained using the Bohm criterion and applying the Sagdeev pseudo potential method and effects of the spectral index , the potential degrees of freedom via perturbation are studied numerically.
Generalized Bohm sheath criterion in dusty plasma of space environment
Advances in Space Research ; 68 , 8 ; 3455-3463
2021-06-10
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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