Other
Scientific paper
Feb 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976icar...27..255s&link_type=abstract
Icarus, vol. 27, Feb. 1976, p. 255-264.
Other
4
Albedo, Astronomical Photometry, Molecular Spectra, Planetary Radiation, Ultraviolet Photometry, Venus (Planet), Abundance, Carbon Dioxide, Data Reduction, Oao 2, Spectrum Analysis, Sulfuric Acid
Scientific paper
Spectrophotometry of Venus from 2170 to about 1950 A has been obtained by OAO-2 at 10-A resolution. The data confirm and extend previous indications that the geometric albedo decreases continuously below 2500 A. Secular changes in either the amount of distribution, or both, of absorbing constituents in the upper atmosphere are strongly suggested. A narrow absorption feature is found near 2145 A, confirming an earlier report by Anderson et al. (1969). Absorption by trace amounts of nitrogen-bearing molecules, including N2O, HNO3 in aqueous solution, and possibly also NO, together with Rayleigh scattering from CO2, can account for the variation in albedo below 3200 A, but other explanations are not excluded. For example, H2S may contribute to or be responsible for the decrease in albedo below 2500 A.
Caldwell J. Jr. J.
Shaya Edward
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