Electric currents in E-like planetary ionospheres

Details Electric currents in E-like planetary ionospheres Electric currents in E-like planetary ionospheres

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990p%26ss...38.1061c&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 38, Aug. 1990, p. 1061-1068.

Computer Science

8

E Region, Electric Current, Ionized Gases, Ionospheric Electron Density, Planetary Ionospheres, Energy Dissipation, Equatorial Electrojet, Kinetic Theory, Magnetohydrodynamics

Scientific paper

In this paper an MHD approach is used to consider the conduction of electric current in a lightly ionized gas, taking into account the gradients of pressure in the ion and electron gases, in addition to the electric field. The coefficients of electrical conductivity are found for each driver of current. New expressions for the components of heat dissipation associated with each driver of current are developed, which are fully consistent with kinetic theory. The relationship of the results to those obtained by kinetic theory is discussed. New components of currents associated with planetary equatorial electrojets are found. A new diffusion equation for magnetic induction is found, applicable in E-like regions of planetary ionospheres, and stellar photospheres.

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