Ion acoustic waves in the dayside of Titan ionosphere: effect of the solar wind

Ahmed, Samar Mohamed; Hassib, Ehab Rashad; Abd EL-Sallam, Osama Mohamed; Moslem, Waleed Moslem

doi:10.21608/fsrt.2020.40085.1024

Ion acoustic waves in the dayside of Titan ionosphere: effect of the solar wind

Document Type : Original Article

Authors

¹ Mathematics department, Faculty of Science, Suez university, Suez, Egypt

² Mathematics department, Faculty of Science, EL-Fayoum university, EL-Fayoum, Egypt.

³ Physics department, Faculty of Science, Port Said University, Port said, Egypt

10.21608/fsrt.2020.40085.1024

Abstract

We investigate the nonlinear ion-acoustic solitary waves for a plasma model at Titan's ionosphere dayside. The plasma system composed of three positive ions, namely HCNH⁺, C₂H₅⁺, and CH₅⁺, isothermal electrons and streaming solar wind particles (i.e. protons and electrons). The dynamics of the ion-acoustic waves is described by Korteweg de-Vries (KdV) equation. The analysis has been done by using a reductive perturbation method. The solitary wave solution is obtained and the effects of solar wind parameters on the pulses profile are examined. Furthermore, the effects of the relevant physical parameters on the profiles of soliton waves are investigated. It is found that only positive pulses are existing and there is not any negative pulses. The soliton amplitude increases with the increase of the phase velocity λ and the relative density protons-to-HCNH⁺. Also, it was found that the pulses decrease with the increase of the relative density C₂H₅⁺-to-HCNH⁺ and temperature ratio protons-to-electrons.

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