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Atmospheric and Oceanic Optics

2025 year, number 5

The hypothesis of transient light events in the mesosphere of Venus

E.A. Sosnin1,2, V.A. Panarin1, V.S. Skakun1, D.A. Sorokin1,2
1High Current Electronics Institute of the Siberian Branch of the RAS, Tomsk, Russia
2National Research Tomsk State University, Tomsk, Russia
Keywords: apokamp discharge, Venus mesosphere, transient light event, spectral equipment

Abstract

Observations of the state of the mesosphere of Venus from spacecraft have not yet revealed transient luminous events similar to those observed in the Earth's atmosphere. In this work, a possibility of such phenomena is proved in laboratory conditions. For this purpose, an experiment was conducted on the formation of apokamps in carbon dioxide at various pressure values. The results confirm the hypothesis that conditions at altitudes corresponding to the upper edge of clouds in the atmosphere of Venus are favorable for the generation of analogues of transients of the Earth's mesosphere. Based on this, recommendations have been developed for the design of detection systems for such phenomena from orbiting satellites or balloons.