Broadening of the R(0) and P(2) lines in the 13CO fundamental by helium atoms from 300 K down to 12 K: Measurements and comparison with close-coupling calculations - Archive ouverte HAL
Article Dans Une Revue Journal of Molecular Spectroscopy Année : 2007

Broadening of the R(0) and P(2) lines in the 13CO fundamental by helium atoms from 300 K down to 12 K: Measurements and comparison with close-coupling calculations

Résumé

We present measurements of He-broadening parameters for the R(0) and P(2) lines in the fundamental band of 13CO at different temperatures between 12 K and room temperature. The broadening parameters are determined, taking into account confinement narrowing, by simultaneous least-squares fitting of spectra recorded using a frequency stabilized diode laser spectrometer. The pressure broadening cross sections are deduced and compared to close-coupling calculations and earlier results obtained for rotational transitions of 12CO.

Dates et versions

hal-00908185 , version 1 (22-11-2013)

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Citer

Franck Thibault, A. W. Mantz, Christophe Claveau, A. Henry, A. Valentin, et al.. Broadening of the R(0) and P(2) lines in the 13CO fundamental by helium atoms from 300 K down to 12 K: Measurements and comparison with close-coupling calculations. Journal of Molecular Spectroscopy, 2007, 246 (1), pp.118-125. ⟨10.1016/j.jms.2007.09.001⟩. ⟨hal-00908185⟩
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