Effective energy loss per electron-ion pair in proton aurora |
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Authors: | B V Kozelov V E Ivanov |
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Institution: | 1. Polar Geophysical Institute, Academy of Science of Russia, Apatity, Murmansk region, Russia
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Abstract: | Effective energy loss per electron-ion pair produced, <xi>(E 0), as a function of a particle’s initial energy has been obtained for proton transport in the atmosphere. The influence of some transport parameters on the shape of <xi>(E 0) has been studied. Comparisons with the case of electron transport and with other results were made. It has been shown that: 1. for E 0>1 keV, <xi>(E 0) varies within the range 30–36 eV; 2. as E 0 increases the value of <xi>(E 0) tries to attain an asymptotic value that is the same as for electrons (\approx35 eV); 3. <xi>(E 0) strongly depends on the average energy of secondary electrons, but the energy distribution of secondary electrons is not as important. The range of possible changes in <xi>(E 0) associated with discrepancies in cross sections has been obtained. |
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