qspec.models.hf_int  (  i ,  j_l ,  j_u ,  transitions  )[source]

Parameters:

iscalar

The nuclear spin $I$.

j_lscalar

The total lower state electron angular momentum $J$.

j_uscalar

The total upper state electron angular momentum $J^\prime$.

transitionsIterable

A list of electronic transition properties. The first two properties of each entry should be f_l and f_u the total angular momenta of lower and upper state.

Returns:

outlist[ndarray]

The relative line intensities.