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How does the Sun Influence the Magnetospheres of Jupiter and Saturn?

Published online by Cambridge University Press:  24 July 2018

Caitríona M. Jackman Open the ORCID record for Caitríona M. Jackman [Opens in a new window]  and
Christopher S. Arridge
Caitríona M. Jackman
Affiliation:
Department of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK email: [email protected]
Christopher S. Arridge
Affiliation:
Department of Physics and Astronomy, Lancaster University, Lancaster, LA1 4YB, UK email: [email protected]
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Abstract

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Spacecraft have visited Jupiter and Saturn at all phases of the solar cycle and thus we have a wealth of data with which to explore both upstream parameters and magnetospheric response. In this paper we review upstream parameters including interplanetary magnetic field strength and direction, solar wind dynamic pressure, plasma beta and Mach number. We consider the impact of changing solar wind on dayside coupling via reconnection. We also comment on how solar UV flux variability over a solar cycle influences the plasma and neutral tori in the inner magnetospheres of Jupiter and Saturn, and thus estimate the solar cycle effects on internally driven magnetospheric dynamics. Finally we place our results in the context of the now complete set of data from the Cassini mission at Saturn and the current data streaming in from Juno at Jupiter, outlining future avenues for research.

Keywords

JupiterSaturnsolar windinterplanetary mediumUV radiationplanets and satellites: generalmolecular processes
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S335: Space Weather of the Heliosphere: Processes and Forecasts , July 2017 , pp. 109 - 113
Copyright
Copyright © International Astronomical Union 2018 

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