Physics
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jmosp.168..593b&link_type=abstract
Journal of Molecular Spectroscopy, Volume 168, Issue 2, p. 593-606.
Physics
32
Scientific paper
The hydrogen- and self-broadened linewidths of 116 14NH3 ground state transitions with J,K = 1,0 to 10,10 have been measured at 0.006-cm-1 resolution between 40 and 210 cm-1 using a Bruker spectrometer. These experimental widths have been reproduced to 2.4 and 11%, respectively, using a heuristically derived expression of the form γ = a0 + a1J'' + a2K'' + a3J''2 + a4J''K'', where J'' and K'' are the lower state symmetric-top quantum numbers. This function has also been applied to the measured widths of the 58 transitions of ν1, each broadened by N2, O2, Ar, H2, He [Pine et al., J. Quant. Spectrosc. Radiat. Transfer50, 337-348 (1993)], and NH3 [Markov et al., J. Quant. Spectrosc Radiat. Transfer50, 167-178 (1993)]. The rms of the observed minus calculated widths are +/-5% or better for the five foreign broadeners. For the self-broadening case, the expression fails to reproduce the K = 0 data. The values of the fitted constants suggest that for some broadeners the expression might also be written as γ = a0 + b1J'' - a2(J'' - K'') + b3J''(J'' - K'').
Brown Raymon L.
Peterson D. B.
No associations
LandOfFree
An Empirical Expression for Linewidths of Ammonia from Far-Infrared Measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with An Empirical Expression for Linewidths of Ammonia from Far-Infrared Measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Empirical Expression for Linewidths of Ammonia from Far-Infrared Measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1411894