Abstract
Double layers (DLs) structures in a collisionless Lorentzian plasma consisting of warm ions and two-temperature superthermal electrons are studied by using the reductive perturbation method. The basic set of fluid equations is reduced to extended Korteweg-de Vries (EK-dV) equation. It is shown that in temperatures lower than critical value for densities around first critical concentrations of cold electrons (\(d \to d_{c_{1}}\)) DL structures coexist. The effects of cold to hot electron density ratio d, cold to hot electrons temperature ratio σ, spectral index of cold and hot electrons κ c and κ h , ion temperature δ on DLs structure are also, discussed.
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Mehdipoor, M. New characteristics of double layers in two-temperature Lorentzian plasmas. Astrophys Space Sci 353, 525–533 (2014). https://doi.org/10.1007/s10509-014-2082-9
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DOI: https://doi.org/10.1007/s10509-014-2082-9