Atomic Spectral Lines Data OII, Mg, Al, S, Sc

Using recent critical compilations of atomic energy levels, the authors calculate wavelengths (or wave numbers) from the differences of the energy levels. Results are given along with the observed values for all classified lines.

Unless otherwise noted, the calculated values are in general more accurate than the observed values wherever the two values differ significantly. Some observed lines are classified as unresolved blends of two or more transitions. The calculated wavelength for each of the main components of such a blend is listed, or in some cases the calculated wavelength of the probable strongest component.