Observations of the plasma-wave spectra from the four major outer planets are examined with particular attention given to the instabilities related to the precipitation of energetic particles. Wave-particle interactions involving hiss, chorus, and electron-cyclotron harmonic emissions are studied. These interactions contribute about 10 exp 13 W into the Jovian atmosphere, and the electron-cyclotron emissions on Saturn are shown to contribute significantly to the precipitation of energetic electrons. Whistler-mode waves are shown to exist at Uranus with intensities that could put 3-40 keV electrons on strong diffusion, but the amplitudes of the emissions are not sufficient to make them a significant part of precipitation. Weak electron-cyclotron harmonic emissions and whistler modes are detected at Neptune, suggesting that the present dataset is based on regions of low wave intensities.
Comparative observations of plasma waves at the outer planets
Advances in Space Research ; 12 , 8 Au
1992-08-01
Sonstige
Keine Angabe
Englisch
Comparative observations of plasma waves at the outer planets
Elsevier | 1992
|Radio and plasma waves at the outer planets
Elsevier | 2003
|Radio and plasma waves at the outer planets
Online Contents | 2004
|Radio and Plasma Waves at the Outer Planets
British Library Conference Proceedings | 2004
|Voyager plasma wave observations near the outer planets
NTRS | 1991
|