CALCULATION OF FAR WING LINE BROADENING OF THE SODIUM D LINE INDUCED BY COLLISIONS WITH HYDROGEN ATOMS
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Date
1974
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Ab initio MCSCF wavefunctions and energies were calculated at several internuclear distances for the six states of NaH arising from the divided atoms Na($^{2}S$) + H($^{2}S$) and Na($^{2}P$) + H($^{2}S$). The resulting potential curves, and line strengths computed from the wavefunctions, were used in a statistical line shape $calculation^{1}$ to determine the shape of the far wings of the sodium D line broadened by collisions with hydrogen atoms. The most notable feature of the calculated spectrum is a satellite peak at 10 400 {\AA}, whose intensity is $10^{-9}$ that of the central (unperturbed) peak at $5000^{\circ} K$ and a H atom density of $10^{-10}$ $Bohr^{-3}$.
Description
$^{1}$R.E.M, Hedges, D. L. Drummond, and A. Gallagher, Phys. Rev. A6, 1519 (1972).
Author Institution: Department of Chemistry, University of Chicago; Computer Center, University of Illinois at Chicago Circle
Author Institution: Department of Chemistry, University of Chicago; Computer Center, University of Illinois at Chicago Circle