Izvorni znanstveni članak
Effects of drift negative ion plasmas on ion-acoustic solitary waves in drift cold positive ion plasmas with isothermal electrons
S. Chattopadhyay
; Centre for Theoretical Plasma Research, 346, R. K. Pally (Balaka), Sonarpur, Kolkata-150, West Bengal, India; Department of Mathematics, Daria J. L. N Vidyalaya, South 24 parganas, West Bengal, India
Sažetak
The effects of higher-order non-linearity on ion-acoustic solitary waves in a collisionless isothermal electron plasma with cold positive and negative ions are investigated by using the pseudopotential method. The influence of negative ions on solitary waves as well as on the first- and second-order amplitudes, widths and phase velocities are discussed for the plasmas having He+,O−, He+,Cl− or H+,O− ions with the variation of parameters. The results are depicted in figures. We discuss the range of the electrostatic potential function (φ) for which the pseudopotential function (ψ) is valid up to a desired degree of accuracy.
Ključne riječi
ion-acoustic solitary waves; collisionless isothermal electron plasma; cold positive and negative ions; He+; O−; He+; Cl− and H+; O− ions; drift motion
Hrčak ID:
302235
URI
Datum izdavanja:
2.5.2007.
Posjeta: 174 *