Continuum absorption in the wings of the rotational CO band in mixture with Argon
O.B. Rodimova
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: IR absorption, carbon monoxide, broadening by argon, line wing
Abstract
Absorption by carbon monoxide in a mixture with argon is considered on the basis of the asymptotic line wing theory. Line contour parameters, related to the quantum potential of intermolecular interaction describing absorption in the short-wavelength wing of the CO rotational band have been found. This contour is used for describing continuum absorption within the longwave wing of the CO rotational band, leading to agreement with experiment. Thus, the line contour obtained can be applied for estimation of the CO continuum absorption within the CO rotational band.
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