The effect of trapped electrons on large amplitude ion-acoustic waves in a plasma with an electron beam

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.536569· OSTI ID:379785

Nejoh, Y N ^[1]

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1. Hachinohe Inst. of Tech. (Japan)

Nonlinear waves may play important roles in rarefied space plasmas in the earth`s magnetosphere, the physics of solar atmosphere, and other astrophysical plasmas. The nonlinear wave structures of large amplitude ion-acoustic waves are investigated in an electron beam-plasma system with trapped electrons, by the pseudopotential method. The speed of the ion-acoustic wave increases as the effect of trapped electrons decreases and the beam temperature increases. The region of the existence of ion-acoustic waves is examined, showing that the condition of the existence sensitively depends on the parameters such as the effects of the electron beam density and temperature, electrostatic potential, and the effect of trapped electrons. It turns out that the region of existence spreads as the effect of trapped electrons decreases and beam temperature increases. New findings of large amplitude ion-acoustic waves in an electron beam-plasma system with trapped electrons are predicted.

• OSTI ID: 379785
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 4 Vol. 24; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BEAM-PLASMA SYSTEMS
CALCULATION METHODS
EARTH MAGNETOSPHERE
ION ACOUSTIC WAVES
TEMPERATURE DEPENDENCE