High Spatial and Spectral Resolution Observations of the Forbidden 1.707 μm Rovibronic SO Emissions on Io: Evidence for Widespread Stealth Volcanism25 Aug 2020, 16:00 UTC
Imke de Pater et al 2020 Planet. Sci. J. 1 29
Many observed SO emission areas are not known volcanos; instead, the emissions may be caused by a large number of stealth plumes, produced through the interaction of silicate melts with superheated SO2 vapor at depth.