  Iron-group elements have a very high number of atomic levels and an
overwhelming number of spectral lines. No NLTE model-atmosphere code can cope
with these in a classical way. A statistical approach was developed over the
last decade to decrease the number of levels and lines to a manageable amount.
The Iron Opacity and Interface (IrOnIc) calculates sampled cross-sections and
model-atom files as input for model-atmosphere computations. IrOnIc is
presently transferred into a parallelized code to reduce the calculation time
to a reasonable value. It will be accessible by the public as a service of the
German Astrophysical Virtual Observatory.
