Investigation of the Hydrogen Sulfide High Resolution Spectra in the 760 nm Region

Abstract

Room temperature cavity ring-down spectra (CRDS) of hydrogen sulfide were recorded at three pressures of 10, 20, and 30 Torr in the 12 950–13 300 cm^–1 range with the sensitivity on the order of 3 × 10^–11 cm^–1 in terms of absorption coefficient. The analysis of these spectra was performed. The line positions and intensities were retrieved from these spectra. The theoretical simulation of these spectra was performed within the method of effective operators. The comparison of the measured line positions and intensities to the values obtained within variational calculation was done. The considerable difference was found between calculated (Azzam A.A.A., Yurchenko S.N., Tennyson J., Naumenko O.V. Exomol line lists XVI: A hot line list for H₂S // Mon. Not. R. Astron. Soc. 2016. V. 460. P. 4063–4074) and observed line positions and intensities.