Revived interest in the lunar atmosphere

Details Revived interest in the lunar atmosphere Revived interest in the lunar atmosphere

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991e%26s.....4...10m&link_type=abstract

Earth in Space (ISSN 1040-3124), vol. 4, Oct. 1991, p. 10, 11, 14.

Other

Atmospheric Composition, Lunar Atmosphere, Lunar Surface, Helium, Hydrogen, Rare Gases, Solar Wind

Scientific paper

The recent discoveries of Na and K in the lunar atmosphere are emphasized in a review of lunar atmospheric observations which identifies possible directions of research. Observations are briefly reviewed through the Apollo era which identified the atmosphere as a surface-boundary exosphere, and identified atmospheric constituents included He and Ar which rose and fell by a factor of 20 during the lunar diurnal cycle. Ar-36 and -40 were also identified as were the sources of ionospheric source and sink processes including the solar EUV flux. Na and K are discussed which were identified in a study of the spectroscopic ring effect, and the effects of elemental interaction with the lunar surface can be approximated in laboratory experiments. Observations and measurements of the lunar surface are important for the continued investigation of lunar and other planetary mechanisms.

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