Absolute intensities of spectral lines in carbon dioxide bands near 2050/cm

Details Absolute intensities of spectral lines in carbon dioxide bands near 2050/cm Absolute intensities of spectral lines in carbon dioxide bands near 2050/cm

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apopt..23.4523r&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 23, Dec. 15, 1984, p. 4523-4528. NASA-supported research.

Physics

26

Absorption Spectra, Carbon Dioxide, Line Spectra, Luminous Intensity, Molecular Spectra, Spectrum Analysis, Atmospheric Physics, Curve Fitting, Fourier Transformation, Least Squares Method, Signal To Noise Ratios, Spectral Bands, Spectral Resolution, Vibrational Spectra

Scientific paper

The absolute intensities of individual lines of eleven relatively weak bands of (C-12)(O-16)2, (C-13)(O-16)2, (O-16)(C-12)(O-18), and (O-16)(C-12)(O-17) near 2050/cm were measured and recorded at room temperature and 0.01/cm resolution with the Fourier transform spectrometer located in the McMath solar telescope complex located at the National Solar Observatory on Kitt Peak. Each spectrum was obtained with an integration time of one hour, the temperature and pressure were monitored during this time, and the signal-to-rms noise in the 5 micron region was approximately 4000 for all scans. The intensities were determined from analysis of 1-2/cm segments of spectra using nonlinear least-squares spectral curve fitting, and analyzed to determine the vibrational band intensity and F-factor coefficients for each of the bands. The results are pertinent to a wide variety of problems in atmospheric physics and for the analysis of remote-sensing data.

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