Details

Autor(en) / Beteiligte

• Lamouroux, Julien
• Gamache, Robert R
• Laraia, Anne L
• Hartmann, Jean-Michel
• Boulet, Christian

Titel

Semiclassical calculations of half-widths and line shifts for transitions in the 30012a00001 and 30013a00001 bands of CO2 II: Collisions with O2 and air

Ist Teil von

• Journal of quantitative spectroscopy & radiative transfer, 2012-07, Vol.113 (11), p.991-1003

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The complex RobertaBonamy (CRB) formalism was used to calculate the half-width, its temperature dependence, and the line shift for CO2 for transitions in the 30012a00001 and 30013a00001 bands with O2 as the perturbing gas. The calculations were done for rotational quantum numbers from J=0 to J=120 with no ad hoc scaling of the line shape equations. The intermolecular potential parameters are adjusted on accurate experimental measurements of the half-widths, its temperature dependence, and the pressure-induced line shifts so that a single intermolecular potential reproduces all three parameters. Using the results of this work and previous results for N2-broadening, air-broadening line shape parameters were also determined. The comparison of the CRB calculations with the experimental data available in the literature for the three line shape coefficients demonstrates the quality of the present calculations for the both bands under study.