On the Dynamics of the Jovian Ionosphere and Thermosphere: III. The Modelling of Auroral Conductivity |
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| Authors: | George MillwardSteve Miller Tom StallardAlan D Aylward Nicholas Achilleos |
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| Institution: | a Department of Physics and Astronomy, University College London, Gower Street, London, WC1 6BT, United Kingdomf1george@apl.ucl.ac.ukf1b Department of Physics and Astronomy, University College London, Gower Street, London, WC1 6BT, United Kingdomc Space and Atmospheric Physics Group, Imperial College, London, SW7 2AZ, United Kingdom |
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| Abstract: | Recent work has been concerned with calculating the three-dimensional ion concentrations and Pedersen and Hall conductivities within the auroral region of Jupiter for varying conditions of incident electron precipitation. Using the jovian ionospheric model, we present results that show the auroral ionospheric response to changing the incoming flux of precipitating electrons (for constant initial energy) and also the response to changing the initial energy (for both constant flux and constant energy flux). The results show that, for expected energy fluxes of precipitating particles, the average auroral integrated Pedersen conductivity attains values in excess of 1 mho. In addition, it is shown that electrons with an initial energy of around 60 keV are particularly effective at generating auroral conductivity: Particles of this energy penetrate most effectively to the layer of the jovian ionosphere at which the auroral conductivity is at a maximum. |
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| Keywords: | aurorae |
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