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Line-Mixing Effects in the RotationalrQ-Branches of16O3Perturbed by N2and O2

✍ Scribed by Rodolphe Rodrigues; Paolo De Natale; Gianfranco Di Lonardo; Jean-Michel Hartmann

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 315 KB
Volume: 175
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1996.0049

No coin nor oath required. For personal study only.

✦ Synopsis

Line-mixing effects have been studied in the r Q 5 to r Q 12 rotational subbranches of 16 O 3 . Far-infrared Fourier transform measurements have been made in the 30-90 cm 01 spectral region for mixtures of ozone with N 2 and O 2 at room temperature and total pressures in the 0.5-1.3 atm range. A careful analysis of the experimental data evidence, for the first time, the effects of line interferences on absorption in the far-infrared ozone branches. Modifications with respect to additive Lorentzian line contributions are on the order of 15% at the r Q K a peaks under atmospheric conditions. A simple model is proposed in order to account for these line-mixing effects. It successfully predicts the spectral shape in the 0.05-1.3 atm total pressure range for both O 3 -O 2 and O 3 -N 2 collisions.

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