The development of the Atomic Database happens in github.com/tardis-sn/cassis
As an explanation, the atomic databases contains two big tables: (1) a table for levels in atoms (2) a table of lines tha…
The atomic data for OII in the CHIANTI database contains some incorrect collision strengths, and the data from Zeippen (1982) only goes up to 20,000K. We should include the recalculated data from Kis…