7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

Arbitrary amplitude ion-acoustic and electron-acoustic solitons in two-ion space plasmas revisited

8 Jul 2014, 15:20
D Les 204

D Les 204

Oral Presentation Track D2 - Space Science Space


Dr Shimul Kumar Maharaj (South African National Space Agency)

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In the present study we will broaden the scope of the studies in [1] by investigating why upper velocity limits occur for slow and fast ion-acoustic and electron-acoustic solitons for a plasma model composed of cool and hot ions (of equal mass) and cool and hot electrons. All species will initially be treated as adiabatic fluids. Not only will we be able to present the admissible soliton velocity ranges for much broader regions in parameter space than those found in [1], our results will also provide useful insights into the properties of the observed solitons such as whether polarity changes can be induced in the observed structures and if double layers are possible. In addition, we will establish how retaining (as opposed to neglecting) inertial effects of the hot electrons in the model affects the results.

[1] G. S. Lakhina, S. V. Singh, A. P. Kakad, F. Verheest and R. Bharuthram, Nonlin. Process Geophys. 15,
903-913 (2008).

Primary author

Dr Shimul Kumar Maharaj (South African National Space Agency)


Prof. Gurbax Singh Lakhina (Indian Institute of Geomagnetism) Prof. Ramesh Bharuthram (University of the Western Cape) Prof. Satya Vir Singh (Indian Institute of Geomagnetism)

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