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First detection of hydroxyl in the atmosphere of Venus

Gondet, B.; Erard, S.; Drossart, P. +41 more

Context: Airglow emissions, such as previously observed from NO and O2(a-X) (0-0) on Venus, provide insight into the chemical and dynamical processes that control the composition and energy balance in the upper atmospheres of planets. The OH airglow emission has been observed previously only in the Earth's atmosphere where it has been used to infe…

Modelling the Venusian airglow

Leblanc, F.; Gronoff, G.; Lilensten, J. +3 more

Context: Modelling of the Venusian ionosphere fluorescence is required, to analyse data being collected by the SPICAV instrument onboard Venus Express.
Aims: We present the modelling of the production of excited states of O, CO and N2, which enables the computation of nightglow emissions. In the dayside, we compute several emissions, taking ad…