loading page

Jupiter's Whistler-mode Belts and Electron Slot Region
  • +11
  • Yixin Hao,
  • Yuri Y Shprits,
  • Doug Menietti,
  • Z.-Y. Liu,
  • Terrance F. Averkamp,
  • Dedong Wang,
  • Peter Kollmann,
  • George Blair Hospodarsky,
  • Alexander Yurievich Drozdov,
  • Elias Roussos,
  • Norbert Krupp,
  • Richard B. Horne,
  • Emma E Woodfield,
  • Scott J Bolton
Yixin Hao
GFZ German Research Centre for Geosciences

Corresponding Author:[email protected]

Author Profile
Yuri Y Shprits
Helmholtz Centre Potsdam
Author Profile
Doug Menietti
University of Iowa
Author Profile
Z.-Y. Liu
Institut de Recherche en Astrophysique et Planétologie (IRAP)
Author Profile
Terrance F. Averkamp
University of Iowa
Author Profile
Dedong Wang
GFZ German Research Center for Geosciences
Author Profile
Peter Kollmann
The Johns Hopkins University Applied Physics Laboratory
Author Profile
George Blair Hospodarsky
University of Iowa
Author Profile
Alexander Yurievich Drozdov
University of California Los Angeles
Author Profile
Elias Roussos
Max Planck Institute for Solar System Research
Author Profile
Norbert Krupp
Max-Planck-Institut fur Sonnensystemforschung
Author Profile
Richard B. Horne
British Antarctic Survey
Author Profile
Emma E Woodfield
British Antarctic Survey
Author Profile
Scott J Bolton
Southwest Research Institute
Author Profile

Abstract

The spatial distribution of whistler-mode wave emissions in the Jovian magnetosphere measured during the first 45 perijove orbits of Juno is investigated. A double-belt structure in whistler-mode wave intensity is revealed. Between the two whistler-mode belts, there exists a region devoid of 100s keV electrons near the magnetic equator at 9 < M < 16. Insufficient source electron population in such an electron “slot” region is a possible explanation for the relatively lower wave activity compared to the whistler-mode belts. The wave intensity of the outer whistler-mode belt measured in the dusk-premidnight sector is significantly stronger than in the postmidnight-dawn sector. We suggest that the inherent dawn-dusk asymmetries in source electron distribution and/or auroral hiss emission rather than the modulation of solar cycle are more likely to result in the azimuthal variation of outer whistler-mode belt intensity during the first 45 Juno perijove orbits.
12 Mar 2024Submitted to ESS Open Archive
15 Mar 2024Published in ESS Open Archive