Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985angeo...3..135g&link_type=abstract
Annales Geophysicae (ISSN 0755-0685), vol. 3, Mar.-Apr. 1985, p. 135-140.
Physics
1
Auroral Zones, Electron Precipitation, Kinetic Equations, Inelastic Collisions, Ion Production Rates, Mathematical Models, Maxwell-Boltzmann Density Function, Neutral Atmospheres, Polar Regions
Scientific paper
A numerical method of describing the interaction between auroral electrons and the atmosphere is presented. The method is based upon the solution of a unified kinetic equation for electrons with an energy between 1 eV and several keV, without classifying them as ones of magnetospheric and atmospheric origin. The results are in reasonable agreement with those obtained by Rees et al. (1977), who report experimental data and theoretical calculations. The numerical modelling utilizes as boundary conditions the Maxwellian distribution functions, involving different values of characteristic energy that are isotropic for the dawn hemisphere which is typical of diffuse auroral zones. The solution is derived in coordinates of energy, pitch-angle and altitude, with the influence of longitudinal electric fields and an inhomogeneous magnetic field taken into account. The disadvantages of some simplistic techniques in current use are demonstrated in terms of a calculation of ion production rate.
Gefan Grigorii D.
Khazanov George V.
Trukhan Aleksander A.
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