Ion-acoustic waves in a plasma consisting of adiabatic warm ions, nonisothermal electrons, and a weakly relativistic electron beam: Linear and higher-order nonlinear effects

2008 ◽  
Vol 15 (2) ◽  
pp. 022303 ◽  
Author(s):  
A. Esfandyari-Kalejahi ◽  
I. Kourakis ◽  
P. K. Shukla
2011 ◽  
Author(s):  
M. Mehdipoor ◽  
Muhammed Hasan Aslan ◽  
Ahmet Yayuz Oral ◽  
Mehmet Özer ◽  
Süleyman Hikmet Çaglar

1996 ◽  
Vol 56 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Yasunori Nejoh

Nonlinear wave structures of large-amplitude ion-acoustic waves in a plasma with a relativistic electron beam are studied using the pseudopotential method. The region of existence of large-amplitude ion-acoustic waves is examined, and it is shown that the condition for their existence depends sensitively on parameters such as the relativistic effect of the electron beam, the ion temperature, the electrostatic potential and the electron beam density. It turns out that the region of existence spreads as the relativistic effect (Mach number) increases and the ion temperature decreases. New properties of large-amplitude ion-acoustic waves in a plasma with a relativistic electron beam are predicted.


2020 ◽  
Vol 72 (5) ◽  
pp. 055501
Author(s):  
S M Ahmed ◽  
E R Hassib ◽  
U M Abdelsalam ◽  
R E Tolba ◽  
W M Moslem

1995 ◽  
Vol 2 (11) ◽  
pp. 4122-4126 ◽  
Author(s):  
Yasunori Nejoh ◽  
Heiji Sanuki

1999 ◽  
Vol 61 (2) ◽  
pp. 177-189 ◽  
Author(s):  
W. M. MOSLEM

The nonlinear wave structures of small-amplitude ion acoustic waves in a warm plasma with adiabatic negative-ion, positron and electron constituents traversed by a warm electron beam (with different temperatures) in the vicinity of the critical negative-ion density are investigated using reductive perturbation method. The basic set of equations is reduced to an evolution equation that includes quadratic and cubic nonlinearities. The effective potential of this equation agrees exactly, for small wave amplitudes, with the Sagdeev potential obtained from the original fluid equations using a pseudopotential method. This implies that the evolution equation holds not only in the vicinity of the critical negative-ion density but also in the whole range of negative-ion density under the condition of small wave amplitude.


Sign in / Sign up

Export Citation Format

Share Document