Physics
Scientific paper
Apr 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.272..803h&link_type=abstract
Nature, vol. 272, Apr. 27, 1978, p. 803, 804.
Physics
5
Mars Atmosphere, Solar Wind, Sputtering, Atmospheric Density, Carbon Dioxide, Isotopes, Light Elements, Planetary Evolution, Plasma-Particle Interactions, Mars, Atmosphere, Solar Wind, Sputtering
Scientific paper
The role of solar-wind sputtering in causing atmospheric mass loss from Mars is discussed. The atmospheric mass loss is studied by analogy to models of sputtering of solid surfaces and by use of empirical data for the lunar surface. Results show that Martian atmospheric mass loss, when integrated over the course of 4 times 10 to the ninth power years, amounts to 3.1 times 10 to the 41st power CO2 molecules. Preferential loss of light elements and isotopes by sputtering is also considered.
Haff Peter K.
Switkowski Z. E.
Tombrello T. A.
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