Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfven, Ion Cyclotron, and Whistler Modes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F20%3A00538242" target="_blank" >RIV/68378289:_____/20:00538242 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/20:10423279
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL088432" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL088432</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2020GL088432" target="_blank" >10.1029/2020GL088432</a>

Result language
angličtina
Original language name
Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfven, Ion Cyclotron, and Whistler Modes
Original language description
The electrodynamic coupling between Io and Jupiter gives rise to wave-particle interactions across multiple spatial scales. Here we report observations during Juno's 12th perijove (PJ) high-latitude northern crossing of the flux tube connected to Io's auroral footprint. We focus on plasma wave measurements, clearly differentiating between magnetohydrodynamic (MHD), ion, and electron scales. We find (i) evidence of Alfven waves undergoing a turbulent cascade, suggesting Alfvenic acceleration processes together with observations of bi-directional, broadband electrons: (ii) intense ion cyclotron waves with an estimated heating rate that is consistent with the generation of ion conics reported by Clark et al. (2020, ): and (iii) whistler-mode auroral hiss radiation excited by field-aligned electrons. Such high-resolution wave and particle measurements provide an insight into satellite interactions in unprecedented detail. We further anticipate that these spatially well-constrained results can be more broadly applied to better understand processes of Jupiter's main auroral oval.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

Project
<a href="/en/project/LTAUSA17070" target="_blank" >LTAUSA17070: Electromagnetic waves in planetary ionospheres and magnetospheres</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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