Sputtering Contribution to Planetary Atmospheres

Details Sputtering Contribution to Planetary Atmospheres Sputtering Contribution to Planetary Atmospheres

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agusmsa21b..05b&link_type=abstract

American Geophysical Union, Spring Meeting 2004, abstract #SA21B-05

Other

2427 Ionosphere/Atmosphere Interactions (0335), 5420 Impact Phenomena (Includes Cratering), 5780 Tori And Exospheres, 6020 Ice, 6280 Saturnian Satellites

Scientific paper

We have measured the sputtering of specific species during ion irradiation of water ice, labradorite, albite, anorthoclase, and olivine targets, to understand the importance of sputtering in the generation of atmospheres around icy satellites of the outer solar system by magnetospheric ions, and around the Moon and Mercury by the Solar wind. We use mass spectrometry in ultrahigh vacuum to measure sputtered species and gas evolved during post-irradiation heating to identify chemical species formed by ion implantation. We will discuss the formation of NO and other molecules in the Saturnian system that may be detectable by Cassini, and the relative importance of different mechanism that lead to the formation of Na atmospheres around the Moon and Mercury.

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