Fourier transform spectroscopy of CO2 isotopologues at 1.6 mu m: Line positions and intensities

作者：Jacquemart D; Borkov Yu G; Lyulin O M; Tashkun S A; Perevalov V I^*

来源：Journal of Quantitative Spectroscopy and Radiative Transfer, 2015, 160: 1-9.

DOI：10.1016/j.jqsrt.2015.03.016

• Carbon dioxide
• Isotopologues
• Infrared
• Line positions
• Line intensities

The line positions and intensities of carbon dioxide isotopologues have been retrieved between 5900 and 6400 cm(-1) region from Fourier transform spectra of O-17- and O-18-enriched carbon dioxide recorded in LADIR (Paris, France) with the Bruker IFS 125-HR. In total 1634 line positions and intensities of 20 bands of the 5 major CO2 isotopologues present in our sample 16O(12)C(17)O (39.48%), (OCO)-O-17-C-12-O-17 (27.73%), (OCO)-O-16-C-12-O-16 (15.20%), (OCO)-O-16-C-12-O-18 (7.32%) and (OCO)-O-17-C-12-O-18 (8.25%) are retrieved. All studied bands belong to the Delta P=8 (only for asymmetric species) and 9 series of transitions, where P = 2V(1)+ V-2 +3V(3) is the polyad number (V-i are vibrational quantum numbers). The accuracy of the line position determination is about 0.3 x 10(-3) cm(-1) for the unblended and not very weak lines and the accuracy for the line intensities varies from 4% to 30% depending on the intensity of the line and on the extent of the line overlapping. For the (OCO)-O-16-C-12-O-17, (OCO)-O-17-C-12-O-17, (OCO)-O-16-C-12-O-18 and (OCO)-O-17-C-12-O-18 isotopologues the systematic comparisons have been performed with the recent CRDS measurements.

• 出版日期2015-7