PREDISSOCIATION LINE WIDTHS OF THE SCHUMANN-RUNGE BANDS OF $^{16}O_{2}$

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1987

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Ohio State University

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Non-linear least squares spectral curve fitting has been used to determine predissociation line widths of the Schumann-Runge bands of 16O2. Previously obtained results for the absorption cross sections1 and molecular constants1 were used as data in the fitting procedure. Because the predissociation widths are large compared with the room temperature Doppler widths, Lorentzian profiles were used instead of Voigt profiles. Predissociation widths determined for varioun vibrational levels will be discussed. This work is supported by NASA grant NAG 5-484 to Smithsonian Astrophysical Observatory.

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1 K. Yoshino, D.E. Freeman, J.R. Esmond and W.H. Parkinson, Planet Space Sci. 31, 339 (1983). 2 A.S.-C. Cheung, K. Yoshino, W.H. Parkinson, and D.E. Freeman, J. Mol. Spectrosc. 119, 1 (1986).


Author Institution: Department of Chemistry, University of Hong Kong, Pokfulam Road; Department of Chemistry, Harvard-Smithsonian Center for Astrophysics

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http://hdl.handle.net/1811/17363

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1980-1989