Temperature dependence for self- and N 2 -broadening coefficients of CH 3 Cl
Journal of Quantitative Spectroscopy and Radiative Transfer(2013)
Abstract
The 3.4µm-spectral region of methyl chloride was recently studied in terms of line positions, intensities and self- and N2-broadening coefficients. In this work, the temperature dependence of self- and N2-broadening coefficients was retrieved from high resolution Fourier transform spectra recorded at temperatures between 200K and 270K. 230 self-broadening coefficients and 103N2-broadening coefficients were measured using a multispectrum fitting procedure. The accuracy on the widths measurements was estimated to be around 10%. No K-rotational was observed on the extracted temperature exponents. The model describing the J-rotational dependence of the temperature exponents is available to generate fitted values of both self- and N2- temperature dependence exponent (from J=0 to 40).
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Key words
Methyl chloride,ν1 band,Temperature dependence,Self- and N2-broadening coefficients,J dependence
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