Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.1306r&link_type=abstract
American Astronomical Society, DPS meeting #38, #13.06; Bulletin of the American Astronomical Society, Vol. 38, p.506
Astronomy and Astrophysics
Astronomy
Scientific paper
The chemical composition of icy planetary bodies is affected by photochemical changes due to ultraviolet light from the Sun. The study of planetary ices reveals important information about the origin and evolution of materials in the Solar System. The research described here is a study of near- and mid-IR spectra of ice solids and mixtures during UV photolysis in order to connect the known data from the mid-IR with the new data from the near-IR information. We have created thick, UV photolyzed ices using three different methods, including a novel technique. IR Spectra (10,000-400 cm-1) of the ices were measured to search for photochemical changes. These methods were compared for their efficiency in producing strong near-IR absorptions of UV photoproducts adequate for comparisons to observed planetary ice data. Results indicate that certain were more effective at producing photochemical changes per molecule deposited.
Gerakines Perry A.
Richey Christina
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