|Título||Plasma emission by weak turbulence processes
Ziebell, Luiz Fernando
Yoon, Peter H.
|Abstract||The plasma emission is the radiation mechanism responsible for solar type II and type III radio bursts. The first theory of plasma emission was put forth in the 1950s, but the rigorous demonstration of the process based upon first principles had been lacking. The present Letter reports the first complete numerical solution of electromagnetic weak turbulence equations. It is shown that the fundamental emission is dominant and unless the beam speed is substantially higher than the electron thermal speed, the harmonic emission is not likely to be generated. The present findings may be useful for validating reduced models and for interpreting particle-in-cell simulations.
|Contido em||The astrophysical journal. Bristol. Vol. 795, no. 2 (Nov. 2014), L32, 5 p.
Radiação solar em radio-frequência
Simulação de plasmas
Turbulência em plasmas
[en] Radiation mechanisms: non-thermal
[en] Solar wind
[en] Sun: radio radiation
|Tipo||Artigo de periódico
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