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Magnetosphere-ionosphere coupling currents at Saturn

Lead Research Organisation: University of Leicester
Department Name: Physics and Astronomy

Abstract

We will newly examine the magnetic signatures of field-aligned coupling currents in Saturn's magnetosphere observed on highly-inclined orbits of the Cassini spacecraft in 2013 under conditions of northern spring. These will be compared with corresponding data obtained during southern summer to search for seasonal differences. The results will subsequently be input to the development of models of the field-perturbations due to these currents that are present within the Cassini grand finale mission data (2016/17), to help discriminate their signatures from those of rotating internal field asymmetries.

Publications

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Bader A (2019) The Dynamics of Saturn's Main Aurorae in Geophysical Research Letters

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Bradley T (2018) Field-Aligned Currents in Saturn's Nightside Magnetosphere: Subcorotation and Planetary Period Oscillation Components During Northern Spring in Journal of Geophysical Research: Space Physics

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Bradley T (2018) Planetary Period Modulation of Reconnection Bursts in Saturn's Magnetotail in Journal of Geophysical Research: Space Physics

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Palmaerts B (2018) Auroral Storm and Polar Arcs at Saturn-Final Cassini/UVIS Auroral Observations in Geophysical Research Letters

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Provan G (2019) Variability of Intra-D Ring Azimuthal Magnetic Field Profiles Observed on Cassini's Proximal Periapsis Passes in Journal of Geophysical Research: Space Physics

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Provan G (2019) Magnetic Field Observations on Cassini's Proximal Periapsis Passes: Planetary Period Oscillations and Mean Residual Fields in Journal of Geophysical Research: Space Physics

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Provan G (2018) Planetary Period Oscillations in Saturn's Magnetosphere: Cassini Magnetic Field Observations Over the Northern Summer Solstice Interval in Journal of Geophysical Research: Space Physics

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Stallard T (2019) Local-time averaged maps of H 3 + emission, temperature and ion winds in Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

Studentship Projects

Project Reference Relationship Related To Start End Student Name
ST/N504117/1 30/09/2015 30/03/2021
1778784 Studentship ST/N504117/1 30/09/2016 30/03/2020 Thomas Bradley