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Variation in the Pedersen Conductance Near Jupiter's Main Emission Aurora: Comparison of Hubble Space Telescope and Galileo Measurements
DOI: 10.1029/2023JA032122 Bibcode: 2024JGRA..12932122R

Nichols, J. D.; Vogt, M. F.; Rutala, M. J. +1 more

We present the first large-scale statistical survey of the Jovian main emission (ME) to map auroral properties from their ionospheric locations out into the equatorial plane of the magnetosphere, where they are compared directly to in-situ spacecraft measurements. We use magnetosphere-ionosphere (MI) coupling theory to calculate currents from the …

2024 Journal of Geophysical Research (Space Physics)
Ulysses eHST 2
Parallel Electron Beams at Io: Numerical Simulations of the Dense Plasma Wake
DOI: 10.1029/2023JA031763 Bibcode: 2024JGRA..12931763D

Bagenal, F.; Dols, V.; Paterson, W. R.

In 1995, the Galileo spacecraft traversed the wake of Io at ∼900 km altitude. The instruments onboard detected intense bi-directional field-aligned electron beams (∼140 eV-150 keV), embedded in a dense, cold and slow plasma wake (Nel ∼ 35,000 cm−3, Ti < 10 eV, V < 3 km/s). Similar electron beams were also det…

2024 Journal of Geophysical Research (Space Physics)
eHST 2