Achilleos, N; (2018) The Nature of Jupiter's Magnetodisk Current System. In: Keiling, A and Marghitu, O and Wheatland, M, (eds.) Electric Currents in Geospace and Beyond. (pp. 127-138). American Geophysical Union & John Wiley & Sons: Hoboken, NJ & Washington, D.C., USA.

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Abstract

This chapter gives an overview of the properties of the magnetodisk current in the Jovian system. We describe the global morphology of the current sheet embedded in the plasmadisk / magnetodisk and the observational signatures of currents in this structure. We then consider the role of disk currents in force balance and plasmasheet structure in an axisymmetric, rotating system. We also describe the dependence of current density on spatial location, global size of the magnetosphere, and asymmetries plausibly associated with the influence of solar wind. We conclude with a simplified description of the microscopic nature of the particle motions in the magnetospheric plasma, whose collective action produces the currents themselves.

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