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No detection of SO₂, H₂S, or OCS in the atmosphere of Mars from the first two Martian years of observations from TGO/ACS

Forget, F.; Montmessin, F.; Fedorova, A. A. +13 more

Context. The detection of sulphur species in the Martian atmosphere would be a strong indicator of volcanic outgassing from the surface of Mars.
Aims: We wish to establish the presence of SO₂, H₂S, or OCS in the Martian atmosphere or determine upper limits on their concentration in the absence of a detection.
Method…