Spectral and integrated intensity of CO fundamental band at elevated temperatures

Abstract

The spectral absorption coefficient of CO fundamental band at temperatures from 300 to 1500°K is determined from the existing spectral absorption data in the strong-line approximation region and in the transition region. This has been achieved by use of the Godson approximation for the Elsasser function and the estimated mean values for the line half-width-spacing ratio at various temperatures. The resulting spectral absorption coefficients compare favorably with the available experimental data at room temperature and with the theoretical results at various temperatures. For the integrated intensity of the CO fundamental band extrapolated to STP the present investigation results in a value of 290 ± 16 aim −1 cm −2, which again is in good agreement with the recent experimental data of Breeze and Ferriso.