Jupiter's low‐altitude auroral zones: Fields, particles, plasma waves, and density depletions

AH Sulaiman, BH Mauk, JR Szalay… - Journal of …, 2022 - Wiley Online Library
The Juno spacecraft's polar orbits have enabled direct sampling of Jupiter's low‐altitude
auroral field lines. While various data sets have identified unique features over Jupiter's …

The Io, Europa, and Ganymede auroral footprints at Jupiter in the ultraviolet: Positions and equatorial lead angles

V Hue, GR Gladstone, CK Louis… - Journal of …, 2023 - Wiley Online Library
Jupiter's satellite auroral footprints are a consequence of the interaction between the Jovian
magnetic field with co‐rotating iogenic plasma and the Galilean moons. The disturbances …

Water‐group pickup ions from Europa‐genic neutrals orbiting Jupiter

JR Szalay, HT Smith, EJ Zirnstein… - Geophysical …, 2022 - Wiley Online Library
Water‐group gas continuously escapes from Jupiter's icy moons to form co‐orbiting
populations of particles or neutral toroidal clouds. These clouds provide insights into their …

A new framework to explain changes in Io's footprint tail electron fluxes

JR Szalay, F Allegrini, F Bagenal… - Geophysical …, 2020 - Wiley Online Library
We analyze precipitating electron fluxes connected to 18 crossings of Io's footprint tail
aurora, over altitudes of 0.15 to 1.1 Jovian radii (RJ). The strength of precipitating electron …

Poynting fluxes, field‐aligned current densities, and the efficiency of the Io‐Jupiter electrodynamic interaction

AH Sulaiman, JR Szalay, G Clark… - Geophysical …, 2023 - Wiley Online Library
Juno's highly inclined orbits provide opportunities to sample high‐latitude magnetic field
lines connected to the orbit of Io, among the other Galilean satellites. Its payload offers both …

Energetic charged particle measurements during Juno's two close Io flybys

C Paranicas, BH Mauk, G Clark… - Geophysical …, 2024 - Wiley Online Library
Abstract On days 2023‐364 and 2024‐034, the Juno spacecraft made close passages of
Jupiter's moon Io, at altitudes of about 1,500 km. Data obtained from the first flyby, when the …

Ion precipitation into Io's poles driven by a strong sub‐Alfvénic interaction

JR Szalay, J Saur, F Allegrini, RW Ebert… - Geophysical …, 2024 - Wiley Online Library
Juno performed two close flybys of Io and found enhanced field‐aligned proton fluxes are
absorbed by Io. These protons are absorbed at mass input rates comparable to previous …

Resonant plasma acceleration at Jupiter driven by satellite‐magnetosphere interactions

Y Sarkango, JR Szalay, AH Sulaiman… - Geophysical …, 2024 - Wiley Online Library
The Juno spacecraft had previously observed intense high frequency wave emission,
broadband electron and energetic proton energy distributions within magnetic flux tubes …

Particle acceleration in Jupiter's ion radiation belts by nonlinear wave trapping

T Sekine, Y Omura, D Summers… - Journal of …, 2024 - Wiley Online Library
We present a physical mechanism for generating∼ GeV ions in the Jovian radiation belts.
The mechanism is called relativistic turning acceleration (RTA) and involves a special form …

How Bi‐Modal Are Jupiter's Main Aurora Zones?

BH Mauk, JR Szalay, F Allegrini… - Journal of …, 2023 - Wiley Online Library
Using Juno‐measured> 30 keV electrons, three regions with substantial ultraviolet
emissions were identified previously for Jupiter's main aurora (excluding the polar cap): low …