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  Inflow Speed Analysis of Interchange Injections in Saturn's Magnetosphere

Paranicas, C., Thomsen, M. F., Kollmann, P., Azari, A. R., Bader, A., Badman, S. V., et al. (2020). Inflow Speed Analysis of Interchange Injections in Saturn's Magnetosphere. Journal of Geophysical Research: Space Physics, 125(9): e2020JA028299. doi:10.1029/2020JA028299.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-0A98-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-0A99-2
Genre: Journal Article

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 Creators:
Paranicas, C., Author
Thomsen, M. F., Author
Kollmann, P., Author
Azari, A. R., Author
Bader, A., Author
Badman, S. V., Author
Dumont, M., Author
Kinrade, J., Author
Krupp, Norbert1, Author              
Roussos, Elias1, Author              
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 MPIS_PROJECTS: CASSINI: MIMI
 MPIS_GROUPS: Planetary Plasmas
 Abstract: During its more than 13 years in orbit, the Cassini spacecraft detected a large number of plasma and energetic charged particle injections in Saturn's inner magnetosphere. In the corotating frame of the planet, the plasma contained within an injection moves radially inward with the component particles gaining energy. The highest energy particles in the injection experience stronger gradient‐curvature drifts in the longitudinal direction and can drift out of the main body of the injection. We have used these drift‐out effects to estimate the inflow speed of 19 injections by surveying cases from the available plasma data. We find that the average inflow speed from our sample is 22 km/s, and the values are well distributed between 0 and 50 km/s, with a few higher estimates. We have also computed the radial travel distance of interchange events and found that these are typically one to two Saturn radii. We discuss the implications of these quantifications on our understanding of transport.

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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: 10.1029/2020JA028299
 Degree: -

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Title: Journal of Geophysical Research: Space Physics
  Other : JGR-A
  Abbreviation : J. Geophys. Res. - A
Source Genre: Journal
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Affiliations:
Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 125 (9) Sequence Number: e2020JA028299 Start / End Page: - Identifier: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264