Abstract
A first theoretical work is presented to study the propagation of two-solitons in an electron acoustic waves (EAWs) within the theoretical framework of the Tsallis statistical mechanics. For this purpose, cylindrical and spherical Korteweg-de Vries (KdV) equations are derived for electron acoustic solitary waves (EASWs) in an unmagnetized three species plasma system comprised of cold electrons, immobile ions and hot electrons featuring Tsallis statistics by employing the standard reductive perturbation method. The effects of electron nonextensivity and the fractional number density of the hot electrons relative to that of the cold ones number density (α) on the profiles of two-soliton structures are investigated numerically. Results would be helpful for understanding the localized structures that may occur in space plasmas.
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Sahu, B. Propagation of two-solitons in an electron acoustic waves in a plasma with electrons featuring Tsallis distribution. Astrophys Space Sci 346, 415–420 (2013). https://doi.org/10.1007/s10509-013-1467-5
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DOI: https://doi.org/10.1007/s10509-013-1467-5