Infrared Absorptions near Three Microns Recorded over the Polar Cap of Mars
- 24 October 1969
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 166 (3904) , 496-499
- https://doi.org/10.1126/science.166.3904.496
Abstract
During the Mariner 7 flyby of Mars, the infrared spectrometer recorded distinct, sharp absorption. near 3020 and 3300 reciprocal centimeters between 61°S and 80°S. at the edge of the southern polar cap, with maximum optical density near 68°S and 341°E. These hands, which match in frequency the v3 bands of methane and ammonia, can be associated with previously unreported spectral features of solid carbon dioxide exceeding 1 millimeter in thickness. Possible reasons for the geographic localization are discussed.Keywords
This publication has 4 references indexed in Scilit:
- Infrared Spectra of Solid α- and β-OxygenThe Journal of Chemical Physics, 1965
- Torsional vibrations in CO2 and N2O crystalsSpectrochimica Acta, 1959
- Spectroscopic Studies of Reactive Molecules by the Matrix Isolation MethodThe Journal of Chemical Physics, 1956
- The Vibrational Spectra of Molecules and Complex Ions in Crystals. VI. Carbon DioxideThe Journal of Chemical Physics, 1952