Electromagnetic ion-cyclotron wave growth rates and their variation with velocity distribution function shape

Author:

Shrauner Abraham,Feldman W. C.

Abstract

The sensitivity of electromagnetic ion-cyclotron wave growth rates to the details of the shape of proton velocity distribution functions is explored. For this purpose two different forms of bi-Lorentzian for the proton distribution functions were adopted. The growth rates for the two types of bi-Lorentzians and the biMaxwellians for the beam (hot) protons are compared. Although the growth rates for the three shapes depend on the velocity moments of the different velocity distributions in a similar way, their magnitudes were found to vary considerably.

Publisher

Cambridge University Press (CUP)

Subject

Condensed Matter Physics

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