Bb. Radak et al., LINE-INTENSITIES IN THE 647.5-NM AMMONIA BAND AT LOW-TEMPERATURES DETERMINED BY INTRACAVITY LASER SPECTROSCOPY, Journal of quantitative spectroscopy & radiative transfer, 53(5), 1995, pp. 519-526
Absolute intensities of three re-vibrational lines in the 647.5-nm amm
onia absorption band are investigated by intracavity laser spectroscop
y as a function of temperature (ranging from 180 to 300 K). The absorp
tion lines are at 645.584, 645.712, and 646.050 nm. Their intensities
at 299 K are found to be 2.57, 4.01, and 1.94 cm(-1) atm(-1) km(-1), r
espectively. A rotational analysis using the derived intensity data is
also presented.