Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 84195 10.12737/stp-104202408 Results of current research Results of current research Results of current research Estimating the average energy of auroral electrons from 427.8 nm emission intensity measurements Estimating the average energy of auroral electrons from 427.8 nm emission intensity measurements Дашкевич Жанна Владимировна Dashkevich Zhanna Vladimirovna zhanna@pgia.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Иванов Владимир Евгеньевич Ivanov Vladimir Evgenievich ivanov@pgia.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Полярный геофизический институт Апатиты Россия Polar Geophysical Institute Apatity Russian Federation Полярный геофизический институт РАН Апатиты Россия Polar Geophysical Institute, RAS Apatity Russian Federation 18 12 2024 18 12 2024 10 4 65 71 18 06 2024 02 09 2024 https://zh-szf.ru/en/nauka/article/84195/view

We propose a method for estimating average energy of precipitating electrons from 427.8 nm emission intensity measurements. This method is based on the experimental dependence of the ratio of λ630.0 and λ427.8 nm emission intensities on the λ427.8 emission intensity and model calculations of the dependence of the average auroral electron energy on the I₆₃₀.₀/I₄₂₇.₈ ratio. We present numerical estimates of the influence of three factors on this dependence: the shape of the auroral electron energy spectrum, the atomic oxygen concentration, and the NO concentration. The dependence of the average energy of the auroral electron flux on the 427.8 nm emission intensity is obtained and its analytical approximation is presented.

We propose a method for estimating average energy of precipitating electrons from 427.8 nm emission intensity measurements. This method is based on the experimental dependence of the ratio of λ630.0 and λ427.8 nm emission intensities on the λ427.8 emission intensity and model calculations of the dependence of the average auroral electron energy on the I₆₃₀.₀/I₄₂₇.₈ ratio. We present numerical estimates of the influence of three factors on this dependence: the shape of the auroral electron energy spectrum, the atomic oxygen concentration, and the NO concentration. The dependence of the average energy of the auroral electron flux on the 427.8 nm emission intensity is obtained and its analytical approximation is presented.

 auroras diagnostics average energy electron precipitation emission intensity 427.8 nm 630.0 nm auroras diagnostics average energy electron precipitation emission intensity 427.8 nm 630.0 nm

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