Corotation‐Bounce Resonance of Ions in Jupiter's Magnetosphere
Abstract Banded energy distributions of H + , O ++ , S +++ , and O + or S ++ ions between 100 eV and ∼20 keV are consistently observed in Jupiter's magnetosphere mapping to M‐shells between M = 10–20. The bands correspond to flux enhancements at similar speeds for different ion species, providing the first evidence of simultaneous bounce‐resonant acceleration of multiple ion species in Jupiter's magnetosphere. Ion enhancements occur for energies at which the bounce frequencies of the trapped ions matched integer harmonics of the System‐III corotation frequency. The observations highlight a previously unknown interaction between corotation and bounce motion of <10 keV energy ions that is a fundamental and persistent process occurring in Jupiter's magnetosphere.
Authors
- Joachim Saur (ORCID: https://orcid.org/0000-0003-1413-1231)
- P. A. Damiano (ORCID: https://orcid.org/0000-0002-4477-8119)
- F. Allegrini (ORCID: https://orcid.org/0000-0003-0696-4380)
- D. J. McComas
- Y. Sarkango (ORCID: https://orcid.org/0000-0001-7812-7464)
- P. A. Delamere (ORCID: https://orcid.org/0000-0003-1098-9759)
- A. H. Sulaiman (ORCID: https://orcid.org/0000-0002-0971-5016)
- R. W. Ebert (ORCID: https://orcid.org/0000-0002-2504-4320)
- J. R. Szalay (ORCID: https://orcid.org/0000-0003-2685-9801)
Institutions
- Southwest Research Institute (US)
- University of Minnesota (US)
- University of Alaska Fairbanks (US)
- University of Cologne (DE)
- Princeton University (US)
- The University of Texas at San Antonio (US)
Publication Details
- Journal
- Geophysical Research Letters
- Published
- 2025-02-06
- DOI
- https://doi.org/10.1029/2024gl113193
- Citations
- 2
- Primary Topic
- Astro and Planetary Science
- Type
- article
- Field-Weighted Citation Impact
- 2.31
Funders
- National Aeronautics and Space Administration
- Deutsche Forschungsgemeinschaft
- Nuclear Safety and Security Commission