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Herman-Wallis factors in the C2H2nu5 infrared fundamental near 14 micronsThe presence of acetylene has been confirmed for some time in the atmospheres of the outer planets Jupiter, Saturn, Neptune, and Saturn's satellite Titan. For these atmospheres, the determination of C2H2 abundances using its strong nu5 fundamental requires laboratory line position and intensity measurements. The 1-m Fourier transform spectrometer at McMath solar telescope of Kitt Peak National Observatory was used to measure C2H2 at an unapodized spectral resolution of 0.0025/cm. Synthetic spectra are generated by convolving a Voigt line shape with an instrument function and varying intensity parameters by means of a nonlinear least squares technique. Intensities of 37 nu5 lines spanning P18 through R20 were measured using 0.123 torr of gas in a 1-cm cell. A Herman-Wallis intensity correction parameter of 1.3(4) x 10 to the -3rd has been derived using a least squares linear fit.
Document ID
19910070160
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Maguire, William C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hillman, John J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Weber, Mark
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Blass, William E.
(Tennessee, University Knoxville, United States)
Date Acquired
August 14, 2013
Publication Date
September 25, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
91A54783
Distribution Limits
Public
Copyright
Other

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