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High resolution absorption cross-sections and band oscillator strengths of the Schumann-Runge absorption bands of isotopic oxygen, (O-18)2, at 79 KCross-sections of (O-18)2 at 79 K have been obtained from photoabsorption measurements at various pressures throughout the wavelength region 177.8-197.8 nm with a 6.65 m photoelectric scanning spectrometer equipped with a 2400 lines/mm grating and having an instrumental width (FWHM) of 0.0013 nm. The measured absorption cross-sections of the Schumann-Runge bands (14,0) through (2,0) are, with the exception of the (12,0) band, independent of the instrumental width. The measured cross-sections are presented graphically here and are available at wavenumber intervals of about 0.1/cm as numerical compilations stored on magnetic tape. Band oscillator strengths of those bands have been determined by direct numerical integration of the measured absolute cross-sections and are in excellent agreement with these theoretically calculated values.
Document ID
19890033965
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Yoshino, K.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Freeman, D. E.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Esmond, J. R.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Friedman, R. S.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Parkinson, W. H.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1988
Publication Information
Publication: Planetary and Space Science
Volume: 36
ISSN: 0032-0633
Subject Category
Atomic And Molecular Physics
Accession Number
89A21336
Funding Number(s)
CONTRACT_GRANT: NSF ATM-87-13204
CONTRACT_GRANT: NAG5-484
Distribution Limits
Public
Copyright
Other

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