Chemical sputtering could produce sodium vapor and ice on Mercury

Details Chemical sputtering could produce sodium vapor and ice on Mercury Chemical sputtering could produce sodium vapor and ice on Mercury

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22.3289p&link_type=abstract

Geophysical Research Letters, Volume 22, Issue 23, p. 3289-3292

Physics

43

Planetology: Comets And Small Bodies: Atmospheres-Composition And Chemistry, Planetology: Comets And Small Bodies: Composition, Planetology: Comets And Small Bodies: Interactions With Solar Wind Plasma And Fields, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions

Scientific paper

It is suggested that chemical sputtering of surface rocks by protons from the Mercury magnetosphere can yield sodium vapor more efficiently than physical sputtering, thus lowering the required sodium concentration in surface rocks. Chemical sputtering can also yield sodium vapor having a relatively low kinetic temperature, in agreement with observation. Water vapor is produced in addition to sodium vapor. It could be produced in sufficient amounts to explain the observation of ice in Mercury polar craters.

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