Abstract
The reliability of current estimates of free-free absorption coefficients of the negative helium ion are assessed. Results by sophisticated versions of the multiconfiguration-self-consistent field, close-coupling acid polarized orbital methods are shown to have converged to within a few per cent of each other for wavelengths greater than 1 mu m over the temperature range 1400 K to 25200 K. A table of coefficients giving the best current estimates of He- continuous absorption are presented.
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Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
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