演講資訊

摘要：

Shallow depressions called "hollows" were discovered in MESSENGER observations of Mercury and are thought to be related to the loss of volatile materials from the surface. The volatiles responsible for hollow formation are suggested to involve sulfur-bearing materials. Also, Mercury possesses a surface-bounded exosphere composed of volatile and semi-volatile species. The exospheric particles can migrate across the surface and interact with Mercury’s porous regolith, potentially forming volatile reservoirs in the shallow subsurface. In my talk, I will present a recent study (10.1029/2025GL118112) that investigates the transport and diffusion of sulfur in Mercury’s exosphere and subsurface.