# OscillatorStrength[Helium] and OscillatorStrength[Rubidium] do not return results

I am new to working with the Resonance Absorption Lines Pacgage

<< ResonanceAbsorptionLines


and trying to write code using the OscillatorStrength command. While I get nice results for many elements ie:

OscillatorStrength[Hydrogen]
OscillatorStrength[Lithium]
OscillatorStrength[Beryllium]
OscillatorStrength[Carbon]


Some elements such as

OscillatorStrength[Helium]
OscillatorStrength[Rubidium]


return empty sets. Is this a bug in the package or a bug in my understanding?

• This looks like a very old package, only has information on 32 elements. Have you looked at SpectralLineData`? – Jason B. May 4 '20 at 18:35
• @JasonB. I have looked at SpectralLineData and am in fact using it for other calculations within this same code, but I have been unable to get the oscillator strengths directly from this package. – cphys May 4 '20 at 19:37