Absorption cross section measurements of oxygen in the wavelength region 195-241 nm of the Herzberg continuum

Details Absorption cross section measurements of oxygen in the wavelength region 195-241 nm of the Herzberg continuum Absorption cross section measurements of oxygen in the wavelength region 195-241 nm of the Herzberg continuum

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34.1007c&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 34, Nov. 1986, p. 1007-1021. Research supported by the Chemical Manufacturers

Computer Science

32

Absorption Cross Sections, Continuous Spectra, Herzberg Bands, Molecular Spectra, Oxygen, Pressure Dependence, Schumann-Runge Bands, Stratosphere

Scientific paper

The continuous absorption cross section of oxygen in the region 205-241 nm is studied as a function of path length and oxygen pressure. The technique used to study the continuous absorption cross section is described. Cross section measurements of oxygen in the wavelength region 193-205 nm obtained by Cheung et al. (1984) are applied in this experiment. The measured cross section is analyzed in terms of a Herzberg continuum and a pressure-dependent continuum. The total measured continuum cross section, the cross section involving two molecules of O2, and the Herzberg continuum absorption cross section values are calculated. It is observed that the Herzberg continuum cross section of oxygen values measured at 1 nm intervals in the region 195-241 nm, increase from 6.3 x 10 to the -24th sq cm at 195 nm to a maximum of 6.6 x 10 to the -24th sq cm at 201 nm and then decrease to 0.85 x 10 to the -24th sq cm at 241 nm. The Herzberg values are compared with data from previous investigations and the values correlate well.

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