THE ABSORPTION SPECTRUM OF NO IN THE VACUUM-UV REGION
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Date
1972
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Ohio State University
Abstract
The absorption spectrum of NO has been investigated with a 6.65-m vacuum spectrograph using the helium continuum as a background source. Previously studied $\gamma-$, and $\beta$-Rydberg $series^{1, 2}$ have been reinvestigated. In the $\gamma$-series two series limits at 147 811.1 (m = 30) and 147 689.1 $cm^{-1}$ (m = 26) were obtained. The series going to the latter limit has not been reported previously and is relatively weak; it disappears when the gas is cooled with liquid nitrogen. The two series originate from the $X^{2}\Pi_{1\over 2}$ and $X^{2}\Pi_{3/2}$ states, respectively. The limit of the $\beta$-series obtained from this work is 133 565.3 $cm^{-1}$ (m = 29). Additional series which seem to be associated with the $\beta$-series will be discussed.
Description
$^{1}$Y. Tanaka, Sci. Papers Inst. Phys. Chem. Res. (Tokyo), 39, 456 (1942). $^{2}$K. P. Huber, Helvet. Phys. Acta. 34, 929 (1961).""
Author Institution: Air Force Cambridge Research Laboratories, L. G. Hanscom Field
Author Institution: Air Force Cambridge Research Laboratories, L. G. Hanscom Field