Electrical and electrothermal conductivity of planetary ionospheres, 1: Refinement of theory
Abstract
The explicit form of the coefficients of the electrical and electrothermal conductivity of electrons in a magnetic field in a multicomponent ionosphere with allowance for the temperature difference between electrons and heavy constituents is determined in the first, second, and third approximations of the Sonin polynomial expansion of the ChapmanEnskog method. General expressions for the electron transport coefficients are obtained, which are reduced to a form convenient for practical application. In the first approximation, equations are derived for determining the ion diffusion velocities in a magnetic field in a multicomponent gas mixture. Approximating expressions are refined for the collision frequencies of electrons with the principal neutral constituents of the upper planetary atmospheres. Equations for determining the ambipolardiffusion velocities of ions in a multicomponent ionosphere in the absence of a magnetic field (or parallel to it) are obtained in the first, second, and third approximations.
 Publication:

USSR Report Space
 Pub Date:
 September 1985
 Bibcode:
 1985RpSpR...5...48P
 Keywords:

 ChapmanEnskog Theory;
 Ionospheric Conductivity;
 Particle Diffusion;
 Planetary Atmospheres;
 Planetary Ionospheres;
 Thermal Conductivity;
 Transport Properties;
 Electron Diffusion;
 Electron Scattering;
 Ionic Diffusion;
 Ionospheric Composition;
 Planetary Magnetic Fields;
 Thermal Diffusion;
 Lunar and Planetary Exploration