Shprits Y. Y., J. D. Menietti, A. Y. Drozdov, R. B. Horne, E. E. Woodfield, J. B. Groene, M. de Soria-Santacruz, T. F. Averkamp, H. Garrett, C. Paranicas, D. A. Gurnett, (2018), Strong whistler mode waves observed in the vicinity of Jupiter’s moons, Nature Communications, 9, doi:10.1038/s41467-018-05431-x

Abstract

Understanding of wave environments is critical for the understanding of how particles are accelerated and lost in space. This study shows that in the vicinity of Europa and Ganymede, that respectively have induced and 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 and other astrophysical objects. The generated waves are capable of significantly modifying the energetic particle environment, accelerating particles to very high energies, or producing depletions in phase space density. Observations of Jupiter’s magnetosphere provide a unique opportunity to observe how objects with an internal magnetic field can interact with particles trapped in magnetic fields of larger scale objects.

Authors (sorted by name)

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

Journal / Conference

Nature Communications

Acknowledgments

We thank B. Mauk and M. Kivelson for useful discussions. Work at UCLA was supported by NASA grant NNX11AM36G and NNX15AI94G. Work at GFZ was supported by EC grant H2020 637302. R.B.H. and E.E.W. were supported by STFC grant ST/M00130X/1. J.D.M. was supported by NASA grant NNX11AM36G. The research from H.G. and M.d.S.-S. was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA.

Grants

637302 NNX11AM36G NNX15AI94G ST/M00130X/1

Bibtex

@Article{Shprits2017,
author=" Shprits, Y. Y. and Menietti, J. D. and Drozdov, A. Y. and Horne, R. B. and Woodfield, E. E. and Groene, J. B. and de Soria-Santacruz, M. and Averkamp, T. F. and Garrett, H. and Paranicas, C. and Gurnett, D. A.",
title="Strong whistler mode waves observed in the vicinity of Jupiter’s moons",
journal="Nature Communications",
year="2018",
volume="9",
abstract="Understanding of wave environments is critical for the understanding of how particles are accelerated and lost in space. This study shows that in the vicinity of Europa and Ganymede, that respectively have induced and 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 and other astrophysical objects. The generated waves are capable of significantly modifying the energetic particle environment, accelerating particles to very high energies, or producing depletions in phase space density. Observations of Jupiter’s magnetosphere provide a unique opportunity to observe how objects with an internal magnetic field can interact with particles trapped in magnetic fields of larger scale objects.",
doi="10.1038/s41467-018-05431-x"
}