Dust ion-acoustic solitary waves in a dusty plasma with positive and negative ions
- Department of Physics, Jahangirnagar University, Savar, Dhaka-1342 (Bangladesh)
- Institut fuer Theoretische Physik IV, Fakultaet fuer Physik und Astronomie, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)
- Material Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati-781035, Assam (India)
Properties of small but finite amplitude dust ion-acoustic (DIA) solitary waves in a dusty plasma composed of inertialess electrons, positive and negative inertial ions, and immobile negative/positive charged dust grains are investigated. By using the multifluid dusty plasma model, the Kortweg-de Vries equation and energy integral for small and large amplitude solitary pulses, are derived. It is found that the presence of the negative ions modifies the properties of the solitary DIA waves, and provides the possibility of positive and negative solitary potential structures to coexist. The present results may be useful for understanding the salient features of localized DIA excitations that may appear in data from forthcoming laboratory experiments and space observations.
- OSTI ID:
- 21120467
- Journal Information:
- Physics of Plasmas, Vol. 15, Issue 6; Other Information: DOI: 10.1063/1.2920212; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Landau damping effects on dust-acoustic solitary waves in a dusty negative-ion plasma
Effects of vortex-like and non-thermal ion distributions on non-linear dust-acoustic waves