as the HAZEL calculates the populations for different multiplets, it is in general straightforward to synthesize the resulting atmosphere for any other neural helium line. However imaging that one has simultaneous observations of the He I 1083 nm and the He I D3 (doable at the DKIST and EST). Currently one can invert them separately but it is not possible to invert them together. Perhaps it increases the complexity of the problem as the two lines do not necessarily emerge from the same slab but nevertheless are related. Therefore I would be grateful if you can think of addressing this problem in the upcoming versions.
as the HAZEL calculates the populations for different multiplets, it is in general straightforward to synthesize the resulting atmosphere for any other neural helium line. However imaging that one has simultaneous observations of the He I 1083 nm and the He I D3 (doable at the DKIST and EST). Currently one can invert them separately but it is not possible to invert them together. Perhaps it increases the complexity of the problem as the two lines do not necessarily emerge from the same slab but nevertheless are related. Therefore I would be grateful if you can think of addressing this problem in the upcoming versions.