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Arbitrary amplitude solitary waves in plasmas with dust grains of opposite polarity and non-thermal ions

Published online by Cambridge University Press:  21 January 2010

S. K. MAHARAJ ,
R. BHARUTHRAM ,
S. V. SINGH ,
S. R. PILLAY  and
G. S. LAKHINA
S. K. MAHARAJ
Affiliation:
Hermanus Magnetic Observatory, Hermanus, 7200, South Africa
R. BHARUTHRAM
Affiliation:
University of the Western Cape, Modderdam Road, Bellville, 7535, South Africa (rbharuthram@uwc.ac.za)
S. V. SINGH
Affiliation:
Indian Institute of Geomagnetism, New Panvel, Navi Mumbai, 410218, India
S. R. PILLAY
Affiliation:
University of KwaZulu-Natal, Durban, 4000, South Africa
G. S. LAKHINA
Affiliation:
Indian Institute of Geomagnetism, New Panvel, Navi Mumbai, 410218, India
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Abstract

The existence of large amplitude solitary waves in a plasma comprised of a cold negative dust fluid, adiabatic positive dust fluid, Boltzmann electrons and non-thermal ions is theoretically investigated. Different regions in parameter space that correspond to different values of the ratio of the charge-to-mass ratios of the positive and negative dust grains have been identified where either negative or positive potential solitary wave structures occur and a region where coexistence of negative and positive potential solitary waves is supported.

Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Special Issue 3-4: In Honor of Professor Padma Kant Shukla on the Occasion of His 60th Birthday , August 2010 , pp. 441 - 451
Copyright
Copyright © Cambridge University Press 2010

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