LINE WIDTHS AND THEIR TEMPERATURE DEPENDENCE IN THE $\nu_{9}$-FUNDAMENTAL BAND OF ETHANE
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Date
1985
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Ohio State University
Abstract
Using the spectral transmittance data on N-$_{2}$ broadened and $H_{2}$-broadened lines in the $\nu_{9}$-fundamental of $C_{2}H_{6}$ at 150, 200 and 296 K, and the spectral catalog generated recently by Atakan et $al^{1}$, we have been able to derive simple and useful results for the half-widths of lines of planetary atmospheric relevance. In $H_{2}$-broadening, a single value of $0.104 cm^{-1}$ $atm^{-1}$ seems to fit most of the lines well. In $N_{2}$-broadening, 0.14 (150/T)$^{0.75}$ when K-0, and 0.168 (150/T)$^{0.75}$ when $K\neq0$, have yielded excellent comparison between theoretical and experimental transmittance data.
Description
$^{*}$ Supported by NASA Grant-in-Aid NGR 33-015-139 through the Planetary Atmospheres Program to Varanasi. $^{1}$A. K. Atakan, W. E. Blass, J. W. Brault, S. J. Daunt, G. W. Halsey, D. E. Jennings, D. C. Reuter, and J. Susskind, NASA Tech. Memo. 85108.
Author Institution: Laboratory for Planetary Atmospheres Research, State University of New York; Laboratory for Planetary Atmospheres Research, State University of New York; Astrophysical Experiments Branch, NASA Ames Research Center; Astrophysical Experiments Branch, NASA Ames Research Center
Author Institution: Laboratory for Planetary Atmospheres Research, State University of New York; Laboratory for Planetary Atmospheres Research, State University of New York; Astrophysical Experiments Branch, NASA Ames Research Center; Astrophysical Experiments Branch, NASA Ames Research Center