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Auroral evidence of Io's control over the magnetosphere of Jupiter

Bonfond, B.; Clarke, J. T.; Gérard, J. -C. +5 more

Contrary to the case of the Earth, the main auroral oval on Jupiter is related to the breakdown of plasma corotation in the middle magnetosphere. Even if the root causes for the main auroral emissions are Io's volcanism and Jupiter's fast rotation, changes in the aurora could be attributed either to these internal factors or to fluctuations of the…

Earth-based detection of Uranus' aurorae

André, N.; Dougherty, M. K.; Cecconi, B. +16 more

This study is based on multi-planet multi-wavelength observations of planetary aurorae throughout the heliosphere, acquired along the propagation path of a series of consecutive interplanetary shocks. The underlying motivation to track the shocks was to increase the probability of detection of auroral emissions at Uranus. Despite several Earth-bas…