Fully nonlinear dust-ion-acoustic excitation in Jupiter ionosphere

Document Type : Original Article

Authors

1 Department of Physics, Faculty of Science, Amran University- Yemen

2 Centre for Theoretical Physics, The British University in Egypt (BUE), El-Shorouk city, Cairo, Egypt

3 Department of Physics, Faculty of Science, Port Said University, Port Said, Egypt

4 Department of Physics, Faculty of Science, Damietta University, New Damietta, Egypt

Abstract

Fully nonlinear solitary wave structure of dust-ion-acoustic waves are investigated in
a five-component plasma consisting of positive proton beam from solar wind, positive ion
fluid, two electrons population, one of them from the solar wind and stationary positive
dust grains. The physical parameters in the system such as, proton beam-to-positive
ion temperature and density ratios, as well as solar wind electron number density play
an important role in the profile of the large amplitude dust-ion-acoustic solitary waves.
Using pseudo-potential approach (Sagdeev potential) the basic equations are reduced to
one evolution equation called an energy equation. The latter has been analysed and solved
numerically to obtain an arbitrary amplitude solitary profile as well as the possible regions
for the existence waves. The solution of energy equation presents a positive potential,
which corresponds to a compressive wave profile. The findings of this investigation are
used to interpret the electrostatic arbitrary solitary waves that may be observed in the
Jupiter ionosphere.

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