Search Publications

First observation of the magnetic dipole CO₂ absorption band at 3.3 µm in the atmosphere of Mars by the ExoMars Trace Gas Orbiter ACS instrument

Montmessin, F.; Korablev, O.; Bertaux, J. -L. +8 more

The atmosphere of Mars is dominated by CO₂, making it a natural laboratory for studying CO₂ spectroscopy. The Atmospheric Chemistry Suite (ACS) on board the ExoMars Trace Gas Orbiter uses solar occultation geometry to search for minor atmospheric species. During the first year of ACS observations, the attention was focused on…

First detection of ozone in the mid-infrared at Mars: implications for methane detection

Montmessin, F.; Fedorova, A.; Korablev, O. +9 more

Aims: The ExoMars Trace Gas Orbiter was sent to Mars in March 2016 to search for trace gases diagnostic of active geological or biogenic processes.
Methods: We report the first observation of the spectral features of Martian ozone (O₃) in the mid-infrared range using the Atmospheric Chemistry Suite Mid-InfaRed (MIR) channel, a…