Plasma wave and particle dynamics during interchange events in the Jovian Magnetosphere using Juno observations
Abstract
Interchange instability is an important mechanism that drives the radial transport of particles in Jupiter's inner magnetosphere. Interchanged flux tubes often coincide with rapid changes in particle distributions and plasma waves, including whistler and Z-mode waves, but their occurrence rate, preferential location, and characteristics are not well understood. In this study, we perform a multi-event analysis to evaluate the properties of energetic particles and plasma waves during interchange events using Juno data. The particle data from JEDI and JADE instruments and the plasma wave data from Waves instrument are used to evaluate the properties of energetic particles, whistler-mode waves, and Z-mode waves in the Jovian magnetosphere from 2016 to 2021. We provide several examples of interchange events coincided with plasma waves, followed by a multi-event analysis to reveal the occurrence rate, preferential location, and features of the electron distributions and plasma wave properties. Furthermore, we calculate the growth rate of whistler-mode and Z-mode waves based on the observed plasma parameters and electron distributions. Our findings provide insight into particle transport and generation of plasma waves in the Jovian magnetosphere.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2022
- Bibcode:
- 2022AGUFMSM42F2243D