Wave observations in outer planet magnetospheres |
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Authors: | Frederick L Scarf |
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Institution: | (1) TRW Inc. One Space Park, 90278 Redondo Beach, CA, USA |
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Abstract: | The first measurements of plasma waves and wave-particle interactions in the magnetospheres of the outer planets were provided
by instruments on Voyager 1 and 2. At Jupiter, the observations yielded new information on upstream electrons and ions, bow
shock dissipation processes, trapped radio waves in the magnetospheres and extended Jovian magnetotail, pitch angle diffusion
mechanisms and whistlers from atmospheric lightning. Many of these same emissions were detected at Saturn. In addition, the
Voyager plasma wave instruments detected dust particles associated with the tenuous outer rings of Saturn as they impacted
the spacecraft. Most of the plasma wave activity at Jupiter and Saturn is in the audio range, and recordings of the wave observations
have been useful for analysis. |
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