Supersonic and near-sonic solitary ion-acoustic waves in magnetized plasma

2010 ◽  
Vol 36 (11) ◽  
pp. 993-999 ◽  
Author(s):  
V. V. Prudskikh
Keyword(s):  
Acoustic Waves ◽  
Magnetized Plasma ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

Dynamics of localized ion-acoustic waves in a magnetized plasma

1988 ◽  
Vol 31 (8) ◽  
pp. 2190 ◽  
Author(s):  
S. Qian ◽  
W. Lotko ◽  
M. K. Hudson
Keyword(s):  
Acoustic Waves ◽  
Magnetized Plasma ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

Nonlinear ion-acoustic waves in a magnetized plasma and the Zakharov-Kuznetsov equation

1989 ◽  
Vol 41 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Bhimsen K. Shivamoggi
Keyword(s):  
Acoustic Waves ◽  
Good Description ◽  
Magnetized Plasma ◽  
Stability Of Solutions ◽  
Solitary Wave Solutions ◽  
Ion Acoustic Waves ◽  
Wave Solutions ◽  
Ion Acoustic ◽  
Analytical Properties ◽  
The Magnetic Field

We consider here the nonlinear development of ion-acoustic waves in a magnetized plasma, and give a further discussion of the analytical properties of the Zakharov-Kuznestov equation that governs the latter problem. First we discuss the solitary-wave solutions and show that they give a good description of recent experimental results about the manner in which the magnetic field influences the solitary waves. We then exhibit recurrence and Lagrange stability of solutions of the Zakharov-Kuznestov equation.

scholarly journals Ion-acoustic solitary waves and spectrally uniform scattering cross section enhancements

2010 ◽  
Vol 28 (6) ◽  
pp. 1299-1306 ◽  
Author(s):  
J. Ekeberg ◽  
G. Wannberg ◽  
L. Eliasson ◽  
K. Stasiewicz
Keyword(s):  
Solitary Waves ◽  
Acoustic Waves ◽  
Magnetized Plasma ◽  
Ion Acoustic Waves ◽  
Langmuir Waves ◽  
Incoherent Scatter Radars ◽  
Ion Acoustic Solitary Waves ◽  
Ion Acoustic ◽  
Order Of Magnitude ◽  
Thermal Level

Abstract. Spectra measured by incoherent scatter radars are formed predominantly by scattering of the incident signal off ion-acoustic and Langmuir waves in the ionosphere. Occasionally, the upshifted and/or downshifted lines produced by the ion-acoustic waves are enhanced well above thermal levels and referred to as naturally enhanced ion-acoustic lines. In this paper, we study another kind of enhancement, which is spectrally uniform over the whole ion-line, i.e. the up- and downshifted shoulder and the spectral valley in between. Based on observations made with the EISCAT Svalbard radar (ESR) facility, we investigate the transient and spectrally uniform power enhancements, which can be explained by ion-acoustic solitary waves. We use a theory of nonlinear waves in a magnetized plasma to determine the properties of such waves and evaluate their effects on scattered signals measured by ESR. We suggest a new mechanism that can explain backscattered power enhancements by one order of magnitude above the thermal level and show that it is consistent with observations.

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