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Effect of the variation of electric-dipole moments on the shape of pressure-broadened atomic spectral lines

Kielkopf, J. F.; Allard, N. F.; Royer, A. +1 more

We derive a classical path expression for a pressure-broadened atomic spectral line shape that allows for an electric-dipole moment that is dependent on the position of perturbers. The theory is applied to the atomic hydrogen Lyman-α and Lyman-β lines broadened by collisions with neutral and ionized atomic hydrogen. The far wings of the Lyman seri…