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Modeling of collision induced absorption spectra of CO2-CO2 pairs for planetary atmosphere of Venus (1995)

Borysow, Aleksandra

In: CASI

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Publication Date: 2019-07-13

Description: The objective of the proposal was to model the rototranslational and rotovibrational collision induced absorption spectral bands of importance for the radiative transfer analysis of the atmosphere of Venus. Our main task has involved CO2 pairs. The approach is not straightforward: whereas computational techniques to compute CIA spectra of small linear molecules exist, and were successfully applied to molecules like H2 or N2, they fail when applied to large molecules like CO2. For small molecules one can safely assume that the interaction potential is isotropic. The same approximation does not work for CO2, and when employed, it gives an incorrect band shape and only 50 percent of the CIA intensity.

Keywords: LUNAR AND PLANETARY EXPLORATION

Type: NASA-CR-197373 , NAS 1.26:197373

Format: application/pdf

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