REVISED ANALYSIS OF LaO BAND SPECTRUM
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Date
1971
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Publisher
Ohio State University
Abstract
LaO emission bands of the green-yellow, red, and near infra red region of the spectrum were analysed. Part of the scope of this contribution is to report some neglected information given in publications on this subject by other authors. For instance, an extra branch of important intensity in the green-yellow system of $La^{16}O$, and some “jumps” in the position of another two branches strongly suggest that further developments are still needed to resolve the structure of this molecule without ambiguity, in spite of recent trends supported by analogy with related molecules (i.e. ScO). The bands of $La^{18} O$ were obtained in an are at reduced pressure. Preliminary analysis of lines belonging to branches without irregularity confirm the rotational assignment given for lines of same character in the $La^{16} O$ band specturm. Also rotational constants have been calculated for the isotopic molecule. For the lower common electronic level involved we found $B_{{o}}^{\prime\prime} = 0.3116$.
Description
Su\'{a}rez is a member of Carrera del Investigador Cientifico of Consejo Nacional de Investigaciones Cientificas y T\'{e}enicas de la Rep\'{u}blica Argentina.
Author Institution: Department of Physics, University of La Plata
Author Institution: Department of Physics, University of La Plata