Electromagnetic Wave-Particle Interactions at Saturn: The Impact of Multiple Wave Types on the Dynamics of Saturn’s Radiation Belt.
Tuesday
CB1.1
Abstract details
id
Electromagnetic Wave-Particle Interactions at Saturn: The Impact of Multiple Wave Types on the Dynamics of Saturn’s Radiation Belt.
Date Submitted
2021-04-30 13:38:00
Emma
Woodfield
British Antarctic Survey
Wave-Particle Interactions in Space and Astrophysical Plasmas
Contributed
E. E. Woodfield (British Antarctic Survey), S. A. Glauert (British Antarctic Survey), R. B. Horne (British Antarctic Survey), J. D. Menietti (University of Iowa), Y. Y. Shprits (GFZ German Research Centre for Geosciences)
In recent years, the importance of wave-particle interactions with electrons on the dynamics of the radiation belt at Saturn has been increasingly apparent. Thanks to the wave surveys processed from the NASA Cassini mission we are now able to work out the combined effect of the interactions of different waves with the electron population in the inner magnetosphere. In this presentation we investigate how the acceleration and scattering we expect from individual wave types are affected by combining the individual wave effects. Z-mode, whistler mode chorus and hiss and have all been shown to accelerate electrons whilst ion cyclotron waves scatter them into the atmosphere. However, the strength and location of all these waves vary greatly and their impact on the electron population depends on the underlying plasma properties at any given location. We present our analysis of the effects of combinations of whistler-mode chorus and hiss, Z-mode and ion cyclotron waves on energetic electrons across the inner magnetosphere of Saturn.
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