%0 Journal Article %T Effect of the NO concentration on the ratio I₅₅₇.₇/I₄₂₇.₈ in auroras %A Ivanov, V.E. %A Dashkevich, Z.V. %K nitric oxide, 557.7 nm and 427.8 nm emissions, intensity ratio, aurora, modeling, electron precipitation %J Solar-Terrestrial Physics %D 2024 %N 10 %P 4 %I INFRA-M Academic Publishing LLC.