The well-established gravito-electrostatic sheath (GES) model, originally devised to study the fundamental issues of the Sun and its atmosphere, is revisited. A bi-fluidic model with the realistic inhomogeneous temperature distribution is formulated. We see that the potential drop across the modified GES and its thickness decrease due to increase in the ion temperature. This is a scale-invariance property in good agreement with the laboratory plasma sheath structure. The temperature inhomogeneity is noticed to play a drastic influential role on the electric current evolution dynamics in both the interior and exterior coupled via the GES-surface. All the interesting and significant electrodynamic properties of the solar plasma system are also investigated in detail. It is found that the self-gravitationally confined solar plasma system can behave both as Ohmic-like (linear ) and non-Ohmic (nonlinear ) conducting fluids depending on the relative strength of the gravito-electrostatically coupling forces. Also, the solar surface acts as Ohmic-like conductor with minimum electrical conductivity. An elaborate contrast on the diverse significant electromagnetic properties relative to the earlier GES is drawn. Consistency and applicability of our results in the light of the existing literature are highlighted. Possible future refinements with the non-extensive statistical mechanics of the plasma particles are concisely indicated.
The gravito-electrostatic sheath (GES) model, previously formulated to investigate the equilibrium properties of the Sun and its unbounded atmosphere coupled via the interfacial solar surface boundary (SSB) under the gravito-electrostatic interplay, is re-examined. It is modified, for the first time, with the self-consistent inclusion of turbu-magnetic pressure effects originating from intrinsic continuous instability processes. The role of the new effects is interestingly realized through considerable changes in the dynamic properties of the solar plasma system on both the bounded and unbounded scales. The SSB, as a result of the outward turbu-magnetic action relative to the inward self-gravitating one, is found to shift radially outwards by 5.71% relative to the sheer GES model, and by 7.50% inwards relative to the pure uniformly magnetized counterpart. The sonic point moves inwards by 30% in the former, and by 24% in the latter; respectively. It is further found that the floating surface and floating potential increase by 47% each relative to the GES; and by 27% and 160% relative to the pure magnetic case; respectively. The implications and applications are discussed in the panoptical light of real astronomical observations alongside the facts, faults and future refinements.
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