Characterization of line mixing effects in the 11101←00001 band of carbon dioxide for pressures up to 19 atm - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Quantitative Spectroscopy and Radiative Transfer Année : 2021

Characterization of line mixing effects in the 11101←00001 band of carbon dioxide for pressures up to 19 atm

Résumé

Fourier-transform spectra of room-temperature carbon dioxide compressed to pressures up to 19 atm reported previously are re-analyzed to obtain weak line-mixing parameters and a representation of full line mixing for transitions observed in the P- and Q-branches of the 11101 ← 00001 (Π ← Σ) band centered at 2076.86 cm−1. Similar analyses for the R-branch transitions are prevented by strong Coriolis resonances that nearly completely transfer the intensities of R-branch transitions to the P-branch. The weak line mixing coefficients are retrieved experimentally and are modeled using the Exponential Power Gap scaling law. Another modeling is performed with an Energy-Corrected-Sudden type approach making use of a symmetric relaxation matrix satisfying all basic relations. Comparisons of experimental and calculated parameters with results available in the literature are presented and discussed.
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Dates et versions

hal-03593511 , version 1 (02-03-2022)

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Citer

Adriana Predoi-Cross, Jeanna Buldyreva. Characterization of line mixing effects in the 11101←00001 band of carbon dioxide for pressures up to 19 atm. Journal of Quantitative Spectroscopy and Radiative Transfer, 2021, 272, pp.107793. ⟨10.1016/j.jqsrt.2021.107793⟩. ⟨hal-03593511⟩
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