Physics – Optics
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apopt..27.3275b&link_type=abstract
Applied Optics (ISSN 0003-6935), vol. 27, Aug. 1, 1988, p. 3275-3279.
Physics
Optics
12
Absorption Spectra, Fourier Transformation, Line Shape, Line Spectra, Methane, Remote Sensing, Atmospheric Composition, High Resolution, Molecular Spectra, Room Temperature
Scientific paper
The positions and strengths of about 1900 absorption lines of methane between 3700 and 4136/cm were measured experimentally to provide a reference line list for the identification of weak CH4 features in planetary spectra. The line parameters were obtained at room temperature with accuracies of 0.0002-0.003/cm for positions and + or - 3-40 percent for strengths using spectra recorded at 0.011/cm resolution (unapodized) with a Fourier transform spectrometer at Kitt Peak National Observatory/National Solar Observatory. Individual line strengths range from 0.00002-0.013/sq cm per atm at room temperature, and the sum of the observed strengths is 1.42/sq cm per atm at 297 K. All measurements are reported in natural isotopic abundance.
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