# Improved theoretical approximation for the ion drag force in collisionless plasma with strong ion-grain coupling

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- Nonplanar ion acoustic waves with kappa-distributed electrons. Sahu, Biswajit // Physics of Plasmas;Jun2011, Vol. 18 Issue 6, p062308
Using the standard reductive perturbation technique, nonlinear cylindrical and spherical Kadomtsev-Petviashvili equations are derived for the propagation of ion acoustic solitary waves in an unmagnetized collisionless plasma with kappa distributed electrons and warm ions. The influence of...

- Effect of nonthermality of electrons on the speed and shape of ion-acoustic solitary waves in a warm plasma. Abdelwahed, H. G.; El-Shewy, E. K. // Physics of Plasmas;Jul2012, Vol. 19 Issue 7, p072301
Nonlinear ion-acoustic solitary waves in a warm collisionless plasma with nonthermal electrons are investigated by a direct analysis of the field equations. The Sagdeev's potential is obtained in terms of ion acoustic speed by simply solving an algebraic equation. It is found that the amplitude...

- Ion acoustic solitons in finite ion temperature inhomogeneous plasmas having negative ions. Malik, H.K.; Dahiya, R.P. // Physics of Plasmas;Sep94, Vol. 1 Issue 9, p2872
Investigates the ion acoustic solitons in finite ion temperature inhomogeneous plasmas having negative ions. Basic equations and phase velocity; Kortewe-De Vries equation with additional terms and its solution; Critical values of negative-to-positive ion density ratio.

- Solitary waves in a warm plasma with negative ions and drifting effect of electrons. Kalita, B. C.; Devi, N. // Physics of Fluids B: Plasma Physics;Feb93, Vol. 5 Issue 2, p440
Propagation of ion-acoustic solitary waves in a warm plasma with negative ions under the drifting effect of electrons is considered. Compressive and rarefactive solitons are shown to exist depending on the drift velocity vâ€™e of electrons for different values of Qâ€™...

- Ion acoustic solitons in a warm magnetoplasma. Ghosh, Kamal Kumar; Ray, Dipankar // Journal of Mathematical Physics;Nov87, Vol. 28 Issue 11, p2801
Kalita and Bujarbarua [J. Phys. A: Math. Gen. 16, 439 (1983) ] obtained a set of equations to describe the nonlinear propagation of ion acoustic waves in a warm magnetoplasma and made a numerical study of these equations for particular values of the physical parameters. In this paper a rigorous...

- Spectral analysis of ion-acoustic soliton excitation. Chang, Hong-Young; Lien, Chuong; Sukarto, Sudewo; Hill, Jacqueline; Raychaudhuri, Santwana; Lonngren, Karl E. // Applied Physics Letters;12/15/1985, Vol. 47 Issue 12, p1274
The evolution of the frequency spectrum of a velocity modulated burst of ions from a fine mesh grid in a plasma is measured and interpreted. Initial frequency modulation close to the grid indicates a "ktystron bunching" of the ions. The measured, spectrum far from the grid indicates the...

- Effect of ion temperature on large-amplitude ion-acoustic solitary waves in relativistic plasma. Chatterjee, Prasanta; Roychoudhury, Rajkumar // Physics of Plasmas;Jul94, Vol. 1 Issue 7, p2148
Focuses on the effects of ion temperature on the conditions for existence of solitary waves in a relativistic plasma using Sagdeev's pseudopotential approach. Restriction on the values of the soliton velocity placed by the ion temperature; Effect of ion temperature on the width and amplitude of...

- Large amplitude Langmuir and ion-acoustic waves in a relativistic two-fluid plasma. Nejoh, Yasunori; Sanuki, Heiji // Physics of Plasmas;Jul94, Vol. 1 Issue 7, p2154
Analyzes large amplitude Langmuir and ion-acoustic waves in a weakly relativistic two-fluid plasma by the pseudopotential method. Dependence of existence conditions for relativistic nonlinear Langmuir waves on the relativistic effect, particular energy and ion mass to electron mass ratio;...

- Highly nonlinear ion-acoustic solitons in a warm magnetoplasma with drifting effect of electrons. Kalita, B.C.; Bhatta, R.P. // Physics of Plasmas;Jul94, Vol. 1 Issue 7, p2172
Investigates ion-acoustic solitary waves in a warm, magnetoplasma under the initial drift motion of the electrons in the direction of the magnetic field. Existence of both the compressive and rarefractive solitons within the parametric domains; Effect of the introduction of electron inertia and...