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Spectral Lineshape Parameters Revisited for HF in a Bath of Argon: II. Asymmetries in the (0–0), (0–1), and (0–2) Bands

✍ Scribed by J. Boissoles; F. Thibault; C. Boulet; J.P. Bouanich; J.M. Hartmann


Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
90 KB
Volume
198
Category
Article
ISSN
0022-2852

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✦ Synopsis


Previous measurements of asymmetries of the profiles of argon-broadened HF lines at moderate perturber densities (pressures higher than 10 atm) have been confirmed and extended by high-resolution Fourier transform spectroscopy. In some cases, the asymmetries observed here are of opposite sign when compared to the results obtained at much lower densities (pressures lower than 1 atm). By comparing all the available experiments, the competition between the various mechanisms leading to asymmetries has been analyzed as function of the perturber pressure and the vibrational transitions considered. Copyright 1999 Academic Press.


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Spectral Lineshape Parameters Revisited
✍ I.M. Grigoriev; R. Le Doucen; J. Boissoles; B. Calil; C. Boulet; J.M. Hartmann; 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 156 KB

The test of an interaction potential for HF-argon recently determined from the spectroscopy of the Van der Waals complex requires accurate experimental widths and shifts cross sections. Since inconsistencies existed between previous measurements, collisional lineshapes were studied at T = 296 K by h