O2-broadening coefficients of acetylene lines in the ν4 + ν5 band at room temperature

Tuong Le Cong, Laurent Fissiaux, Ha Tran, Muriel Lepere

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Abstract Room temperature O<inf>2</inf>-broadening coefficients were measured for 16 transitions, from P(23) to R(16), of the ν<inf>4</inf> + ν<inf>5</inf> band of acetylene near 7.5 μm. Absorption spectra of these lines were recorded at room temperature and various pressures, from 20.00 mbar to 66.21 mbar using a tunable diode laser spectrometer. The broadening coefficients were obtained by fitting the Voigt profile as well as the Rautian, the Galatry and the quadratic Speed Dependent Voigt models on the experimental spectra. The results were then compared with some previous studies realized for other bands of acetylene.

langue originaleAnglais
Numéro d'article10589
Pages (de - à)48-53
Nombre de pages6
journalJournal of molecular spectroscopy
Les DOIs
étatPublié - 2 juil. 2015

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