Fourier-transform-spectroscopic photoabsorption cross sections and oscillator strengths for the S₂ BΣu-3-XΣg-3 system.

ABSTRACT: Photoabsorption cross sections and oscillator strengths for the strong, predissociating vibrational bands, v ≥ 11, in the S₂ BΣu-3-XΣg-3(v,0) system are reported. Absorption measurements were undertaken on S₂ vapor produced by a radio-frequency discharge through H₂S seeded in helium, and also in a two-temperature sulfur furnace, at temperatures of 370 K and 823 K, respectively. S₂ column densities were determined in each source by combining experimental line strengths in low-v non-predissociating B - X bands (v < 7) with calculated line f-values based on measured radiative lifetimes and calculated branching ratios. The broad-band capabilities of two vacuum-ultraviolet Fourier-transform spectrometers, used with instrumental resolutions of 0.22 cm<

SUBMITTER: Stark G 

PROVIDER: S-EPMC9558209 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature