Knowledge Bank

In addition to accurate line center positions and absolute intensities, air- and self- broadening, pressure shifts, line mixing coefficients and speed dependence parameters in the P-and R-branches of the 30013$\leftarrow$00001parallelbandhavebeenmeasuredfromhigh-resolution(0.01\backslash wn)roomtemperature($\sim$ 294 K) absorption spectra of CO$2$ in the 6120 to 6280 \wn region. These parameters were retrieved by a single fit covering the entire spectral region with a total of 26 spectra simultaneously by using our multispectrum nonlinear least squares technique.} \underline{\textbf{53}}, 705-721, 1995.} The data were recorded with the McMath-Pierce Fourier transform spectrometer and the 6-m base path White-type cell available at the National Solar Observatory on Kitt Peak, AZ. The path lengths used in the experiments range between 25 and 121 m and the total gas pressures varied from 11 to 900 Torr. High accuracies in the retrieved rovibrational constants (G, B, D . . .) and intensity parameters (line and band intensity and Herman-Wallis factors) were achieved using position and intensity constraints. Line mixing effects were determined using the relaxation matrix formalism. The analyses were performed using a Voigt line profile modified with line mixing and speed dependence. The results will be compared to values reported in the literature} \underline{\textbf{239}}, 221-242 and 243-271, 2006.} and with our recent measurements of the 30012$\leftarrow$00001 band.} accepted, 2007.}