Abstract
The shape of the far wing of self- and N2-broadened CO2 lines has been investigated in the 2150–2250-cm−1 spectral region, i.e., on the low wavenumber side of the lines of the very intense ν3 band of 12C16O2 in a temperature range of atmospheric interest (200–300 K). The experimental results have been compared to calculated values based on the AFGL 1986 compilation. It appears that a symmetrical sub-Lorentzian line shape based on experiments made on the high wavenumber side cannot reproduce experiments. Comparison with experiments made at room temperature shows that the asymmetry of the correcting line shape factor χ strongly increases when decreasing the temperature.
© 1991 Optical Society of America
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