Modelling of electron and proton aurora

V. E. Ivanov; B. V. Kozelov; Tatyana I. Sergienko

doi:10.1117/12.164810

23 November 1993 Modelling of electron and proton aurora

V. E. Ivanov, B. V. Kozelov, Tatyana I. Sergienko

Proceedings Volume 2050, Airglow and Aurora; (1993) https://doi.org/10.1117/12.164810
Event: High Latitude Optics, 1993, Tromso, Norway

Abstract

In this paper we present some results for the Monte-Carlo transport model of auroral electron and proton-hydrogen atom precipitations. Using the `collision-by-collision' degradation scheme we could consider an influence of the dipolar geomagnetic field on the main transport characteristics in detail. For electron and proton fluxes we find that: (1) the model gives a good agreement with the laboratory transport measurements of the energy deposition distributions, ranges, albedo, lateral spreading and `effective eV per electron-ion pair;' (2) the shape of the altitude energy deposition distribution depends on dipolar geomagnetic field insignificantly, but albedo changes very strongly; (3) the main features of the electron flux spectra in the whole energy and pitch-angle ranges, including `break' of the flux curve near 20 - 30 eV, are described by our model rather well; (4) the lateral spreading of the proton fluxes depends greatly on the initial energy and the altitude; (5) the energy-dependent behavior of the `eV per electron-ion pair' for electron and proton fluxes has a similar shape and is nearly constant (approximately equals 35 eV) as initial energy of particle increases.

Citation Download Citation

V. E. Ivanov, B. V. Kozelov, and Tatyana I. Sergienko "Modelling of electron and proton aurora", Proc. SPIE 2050, Airglow and Aurora, (23 November 1993); https://doi.org/10.1117/12.164810

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