Modified disc model of Jupiter's magnetosphere

Details Modified disc model of Jupiter's magnetosphere Modified disc model of Jupiter's magnetosphere

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.1691l&link_type=abstract

Journal of Geophysical Research, vol. 87, Mar. 1, 1982, p. 1691-1695.

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Astronomical Models, Atmospheric Models, Jupiter Atmosphere, Magnetohydrodynamics, Planetary Magnetic Fields, Planetary Magnetospheres, Current Sheets, Io, Plasma Temperature, Rotating Plasmas, Thickness, Jupiter, Magnetosphere, Disc, Models, Magnetohyrodynamics, Rotation, Magnetodisc, Structure, Magnetic Fields, Pressure, Density, Temperatures, Theoretical Studies, Thickness, Plasma Sheets, Thermal Properties, Energy, Distance, Sources, Mathematical Models, Flux, Origin, Acceleration, Particles, Comparison

Scientific paper

This paper establishes a set of static magnetohydrodynamic equations in which a differential rotation of the magnetosphere and a wavy magnetodisc structure are considered. Solutions are obtained that include magnetic field, pressure, density, and temperature. By using the theoretical formulas of the magnetic field and pressure, the thickness of the plasma sheet is calculated. The main results are as follows: (1) the thickness of the plasma sheet is determined by the thermal energy and the rotational energy of the plasma, and it increases with increasing thermal energy, or temperature, and decreases with increasing rotational energy; (2) the thickness of the plasma sheet is different under adiabatic and isothermal conditions; (3) in the isothermal case, when the values of the initial ratio of rotational to thermal energy of the plasma are greater than 0.86, the thickness initially increases with increasing radial distance, reaches a maximum, and then decreases; for values smaller than 0.86 in the isothermal case and for all values in the adiabatic case, the thickness decreases monotonically with increasing radial distance.

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