The role of alpha particles in the emission of plasma waves inside solar ejecta
AUTOR(ES)
Dasso, S., Gratton, F.T., Farrugia, C.J.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2002-06
RESUMO
The enhancement of the resonant instability of right-hand polarized electromagnetic ion cyclotron waves by alpha particles for physical parameters corresponding to coronal mass ejections is studied. We focus on the effects of alpha thermal anisotropy and relative He++/H+ abundance on growth and absorption rates. The first parameter governs directly wave emission, while the second modifies also the wave speed and indirectly enhances the wave excitation.
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