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  Heavy Ion Charge States in Jupiter's Polar Magnetosphere Inferred From Auroral Megavolt Electric Potentials

Clark, G., Mauk, B. H., Kollmann, P., Paranicas, C., Bagenal, F., Allen, R. C., et al. (2020). Heavy Ion Charge States in Jupiter's Polar Magnetosphere Inferred From Auroral Megavolt Electric Potentials. Journal of Geophysical Research: Space Physics, 125(9): e2020JA028052. doi:10.1029/2020JA028052.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-0AB1-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-0AB2-5
Genre: Journal Article

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 Creators:
Clark, G., Author
Mauk, B. H., Author
Kollmann, P., Author
Paranicas, C., Author
Bagenal, F., Author
Allen, R. C., Author
Bingham, S., Author
Bolton, S., Author
Cohen, I., Author
Ebert, R. W., Author
Dunn, W., Author
Haggerty, D., Author
Houston, S. J., Author
Jackman, C. M., Author
Roussos, Elias1, Author              
Rymer, A., Author
Westlake, J. H., Author
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Abstract: In this paper, we exploit the charge‐dependent nature of auroral phenomena in Jupiter's polar cap region to infer the charge states of energetic oxygen and sulfur. To date, there are very limited and sparse measurements of the >50 keV oxygen and sulfur charge states, yet many studies have demonstrated their importance in understanding the details of various physical processes, such as X‐ray aurora, ion‐neutral interactions in Jupiter's neutral cloud, and particle acceleration theories. In this contribution, we develop a technique to determine the most abundant charge states associated with heavy ions in Jupiter's polar magnetosphere. We find that O+ and S++ are the most abundant and therefore iogenic in origin. The results are important because they provide (1) strong evidence that soft X‐ray sources are likely due to charge stripping of magnetospheric ions and (2) a more complete spatial map of the oxygen and sulfur charge states, which is important for understanding how the charge‐ and mass‐dependent physical processes sculpt the energetic particles throughout the Jovian magnetosphere.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1029/2020JA028052
 Degree: -

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Title: Journal of Geophysical Research: Space Physics
  Other : JGR-A
  Abbreviation : J. Geophys. Res. - A
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 125 (9) Sequence Number: e2020JA028052 Start / End Page: - Identifier: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264