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[en] In a completely ionized hot plasma, with a non-Maxwellian electron velocity distribution, it is shown that, depending on the electron temperature, oscillations may occur at the elctron plasma and gyro frequencies. For three different electron velocity distributions, it is shown the oscillations dependency on the temperature. This situation occurs in the ionospheric plasma when artificially heated by HF radio waves. If the distribution is Maxwellian, the oscillation only occur near the electron plasma frequency
[pt]
Em um plasma quente, completamente ionizado e com distribuicao de velocidades nao Maxwelliana, e teoricamente possivel, dependendo da temperatura dos eletrons, haver oscilacoes nas frequencias eletronicas e de girofrequencia do plasma. Para tres tipos de funcoes de distribuicao de velocidades e mostrada a influencia da temperatura nas frequencias de oscilacao. Essa situacao ocorre no plasma ionosferico quando aquecido artificialmente por meio de ondas de radio de alta frequencia. Quando a distribuicao e Maxwelliana, as oscilacoes se limitam a frequencia eletronica do plasmaJournal
Revista Brasileira de Fisica; ISSN 0374-4992; 
; v. 7(3); p. 621-642
; v. 7(3); p. 621-642