Fourier transforms CO spectra near 1.19 µm. (February 2020)

• Record Type: Journal Article
• Authors: Borkov, Yu.G.; Solodov, A.M.; Petrova, T.M.; Solodov, A.A.; Karlovets, E.V.; Perevalov, V.I.
• Is Part Of: Journal of quantitative spectroscopy & radiative transfer. Volume 242(2020)
• Publication Date: 2020-02
• Subjects: Fourier transform spectroscopy -- Carbon monoxide -- CO -- Spectral line parameters -- Effective dipole moment parameters; Spectrum analysis -- Periodicals; Radiation -- Periodicals; Analyse spectrale -- Périodiques; Rayonnement -- Périodiques; Radiation; Spectrum analysis; Periodicals; 543.0858
• DOI: 10.1016/j.jqsrt.2019.106790
• Languages: English
• ISSNs: 0022-4073

Abstract

Highlights: Observed line intensities for the 4–0 band of 12 C 16 O, 13 C 16 O and 12 C 18 O. Effective dipole moment parameters for the 4–0 band of all carbon monoxide isotopologues. Calculated line intensities for the 4–0 band of all carbon monoxide isotopologues. Self-pressure induced broadening coefficients for the 4–0 band of 12 C 16 O. Abstract: The absorption spectra of carbon monoxide have been recorded in the 8150–8466 cm −1 wavenumber regions using the IFS 125 HR Fourier transform spectrometer and a 30 m multipass cell with the White-type optical system. The spectra were recorded at spectral resolution of 0.012–0.014 cm −1, path length up to 1058 m, and at pressure range from 196 to 492 mbar. The temperature of the recordings was about 302 K. The lines of the 4–0 band of three isotopologues 12 C 16 O, 13 C 16 O and 12 C 18 O were assigned. The effective dipole moment parameters describing the line intensities of the 4–0 band of 12 C 16 O were fitted to the observed values of the line intensities. Then using the isotopic substitution equations they were recalculated to those of the minor isotopologues including the radioactive ones. The accuracy of the line intensity measurements varies between 2% and 3% for the strong unblended lines. The comparison of our measured line intensities to those of other authors and to HITRAN2016 database is given.