Influence of Generalized (r,q) Distribution Function on Electrostatic Waves

O4; Non-Maxwellian particle distribution functions possessing high energy tail and shoulder in the profile of distribution function considerably change the damping characteristics of the waves. In the present paper Landau damping ofelectron plasma (Langmuir) waves and ion-acoustic waves in a hot, is...

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Bibliographic Details
Published in:Communications in theoretical physics 2006-03, Vol.45 (3), p.550-554
Main Authors: Qureshi, M.N.S, Jian-Kui, Shi, Shi-Zhuang, Ma
Format: Article
Language:English
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Summary:O4; Non-Maxwellian particle distribution functions possessing high energy tail and shoulder in the profile of distribution function considerably change the damping characteristics of the waves. In the present paper Landau damping ofelectron plasma (Langmuir) waves and ion-acoustic waves in a hot, isotropic, unmagnetized plasma is studied with the generalized (r, q) distribution function. The results show that for the Langmuir oscillations Landau damping becomes severe as the spectral index r or q reduces. However, for the ion-acoustic waves Landau damping is more sensitive to the ion temperature than the spectral indices.
ISSN:0253-6102
DOI:10.1088/0253-6102/45/3/034