Abstract
The nonlinear properties of composite structure induced by the head-on collision of electron-acoustic solitons in a general plasma composed of cold fluid electrons, hot nonextensive distributed electron, and stationary ions are studied. We have made a detailed investigation on the time-evolution process of this merged wave structure. It is found that the structure survives during some time interval, and there are obviously different for the properties of the composite structures which are induced in cylindrical and spherical geometries. Moreover, it is shown that there are both positive and negative phase shifts for each colliding soliton after the interaction. For fixed plasma parameters, the soliton received the largest phase shift in spherical geometry, followed by the cylindrical and one-dimensional planar geometries.
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The authors acknowledge the financial support from the National Natural Science Foundation of People’s Republic of China under Grant No. 11365007.
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Han, JN., Luo, JH., Liu, ZL. et al. Nonlinear nature of composite structure induced by the interaction of nonplanar solitons in a nonextensive plasma. Astrophys Space Sci 357, 170 (2015). https://doi.org/10.1007/s10509-015-2399-z
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DOI: https://doi.org/10.1007/s10509-015-2399-z