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Variable temperature pressure broadening of the 4(1,4)-3(2,1) transition of H2O by O2 and N2The O2 and N2 pressure-broadening parameters of the 4(1,4)-3(2,1) rotational transition in the ground vibrational state of H2O have been measured in the temperature range between 100 and 520 K. Above 250 K the measurements were made in an equilibrium cell. Below 250 K a cell, which uses collisional cooling to circumvent the temperature limits imposed by the vapor pressure of the sample gas, was used. The data were fitted to an exponential temperature-dependence for data above 150 K with resultant n values of 0.81(3) for O2 and 0.70(3) for N2, where the entries in parentheses represent the error in the last significant figure of the parameter. Below 150 K the measured pressure-broadening parameters are smaller than those calculated using these values of n.
Document ID
19930056305
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goyette, Thomas M.
(NASA Headquarters Washington, DC United States)
Delucia, Frank C.
(Ohio State Univ. Columbus, United States)
Dutta, J. M.
(NASA Headquarters Washington, DC United States)
Jones, C. R.
(North Carolina Central Univ. Durham, United States)
Date Acquired
August 16, 2013
Publication Date
May 1, 1993
Publication Information
Publication: Journal of Quantitative Spectroscopy and Radiative Transfer
Volume: 49
Issue: 5
ISSN: 0022-4073
Subject Category
Atomic And Molecular Physics
Accession Number
93A40302
Distribution Limits
Public
Copyright
Other

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