Physics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jqsrt..60.1011a&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 60, issue 6, pp. 1011-1023
Physics
20
Ammonia: Line Intensities, Ammonia: Line Broadening, Ammonia: Laboratory Spectra
Scientific paper
The intensities and foreign gas broadening coefficients of 57 selected lines of the ν4 band of NH3 have been measured in the region of 1550 cm-1 using a high resolution Brucker Fourier transform spectrometer. The line intensities were obtained by using the methods of absorbance at the line center and by fitting Voigt profiles to the measured shapes of the lines. The latter method also provides the collisional widths of the lines. In addition, collision cross relaxation coefficients of O2 and air foreign gases were measured for 9 doublets of NH3 in the ν4 band. The J and K quantum numbers dependencies of pressure-broadening coefficients and line intensities are discussed.
Aroui H.
Bouanich Jean-Pierre
Broquier Michel
Chevalier Mattias
Gherissi S.
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