Home » Drozdov et al. 2020

Whistler mode waves in the vicinity of Jupiter’s moons and wave-particle interactions in the Jovian magnetosphere

Drozdov A. Y., Y. Y. Shprits, J. D. Menietti, M. de Soria-Santacruz, R. B. Horne, E. E. Woodfield, J. B. Groene, T. F. Averkamp, H. Garrett, C. Paranicas, D. A. Gurnett, A. Kellerman, H. Zhu, (2020), Whistler mode waves in the vicinity of Jupiter’s moons and wave-particle interactions in the Jovian magnetosphere, Lpp, Paris, France, January, 2020

Abstract

Understanding wave environments is critical for understanding of how particles are accelerated and lost in space. We find that, in the vicinity of Europa and Ganymede, that have internal magnetic fields, chorus wave power is significantly increased. The observed enhancements are persistent and exceed median values of wave activity by up to 6 orders of magnitude for Ganymede. Produced waves may have a pronounced effect on the acceleration and loss of particles in the Jovian magnetosphere. The generated waves are capable of significantly modifying the energetic particle environment, accelerating particles to very high energies, or produce depletions in phase space density. To improve our understanding of the role of plasma waves in shaping the intense Jovian radiation belts we also study the effect of pitch angle and energy diffusion of energetic electrons due to upper and lower band chorus observed in the Jovian magnetosphere. To construct a realistic wave model, an extensive survey from the Galileo spacecraft is used. Two Earth-based models, the Full Diffusion Code (FDC) and the Versatile Electron Radiation Belt (VERB) code, are adapted to the case of the Jovian magnetosphere and used to resolve the interaction between chorus and electrons at L = 10. The presentation will conclude that the shape of the electron phase space density, and the latitudinal extent of the waves, are important for both electron acceleration and loss.

Authors (sorted by name)

Averkamp de Soria-Santacruz Drozdov Garrett Groene Gurnett Horne Kellerman Menietti Paranicas Shprits Woodfield Zhu

Journal / Conference

Lpp

Bibtex

@seminar{Drozdov-2020-0131, 
author = {Drozdov, A.Y. and Shprits, Y.Y. and Menietti, J.D. and de Soria-Santacruz, M.  and  Horne, R.B. and  Woodfield, E.E. and  Groene, J.B. and  Averkamp, T.F. and  Garrett, H. and  Paranicas, C. and Gurnett, D.A. and Kellerman, A.  and Zhu, H.}, 
year = {2020}, 
title = {Whistler mode waves in the vicinity of Jupiter’s moons and wave-particle interactions in the Jovian magnetosphere},
series = {},
organization = {Lpp},
address = {Paris, France},
month = {January},
abstract = {Understanding wave environments is critical for understanding of how particles are accelerated and lost in space. We find that, in the vicinity of Europa and Ganymede, that have internal magnetic fields, chorus wave power is significantly increased. The observed enhancements are persistent and exceed median values of wave activity by up to 6 orders of magnitude for Ganymede. Produced waves may have a pronounced effect on the acceleration and loss of particles in the Jovian magnetosphere. The generated waves are capable of significantly modifying the energetic particle environment, accelerating particles to very high energies, or produce depletions in phase space density. To improve our understanding of the role of plasma waves in shaping the intense Jovian radiation belts we also study the effect of pitch angle and energy diffusion of energetic electrons due to upper and lower band chorus observed in the Jovian magnetosphere. To construct a realistic wave model, an extensive survey from the Galileo spacecraft is used. Two Earth-based models, the Full Diffusion Code (FDC) and the Versatile Electron Radiation Belt (VERB) code, are adapted to the case of the Jovian magnetosphere and used to resolve the interaction between chorus and electrons at L = 10. The presentation will conclude that the shape of the electron phase space density, and the latitudinal extent of the waves, are important for both electron acceleration and loss.},
note = {January 31}
}