Existence domains of large amplitude dust-acoustic solitons in non-thermal plasmas with positive and negative dust
Journal Article
·
· AIP Conference Proceedings
- South African National Space Agency Space Science, P O Box 32, Hermanus 7200 (South Africa)
- University of the Western Cape, Modderdam Road, Bellville 7530 (South Africa)
- Indian Institute of Geomagnetism, New Panvel, Navi Mumbai 410218 (India)
- University of KwaZulu-Natal, Private Bag X54001, Durban 4000 (South Africa)
Using the traditional Sagdeev pseudopotential approach, the existence of large amplitude solitons is investigated for a plasma composed of cold negative dust, adiabatic positive dust, non-thermal ions and Boltzmann electrons. The lower and upper soliton Mach number limitations are determined as a function of various parameters and physical reasons are provided as to why these Mach number limits occur. Some regions in parameter space have been identified where only negative or positive solitons occur, whereas, other regions support the coexistence of both positive and negative potential solitons.
- OSTI ID:
- 21612231
- Journal Information:
- AIP Conference Proceedings, Vol. 1397, Issue 1; Conference: 6. international conference on the physics of dusty plasmas, Garmisch-Partenkirchen (Germany), 16-20 May 2011; Other Information: DOI: 10.1063/1.3659845; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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