The major improvement over the 2004 version of the models concerns the
model atoms, which have been extended in order to achieve a more complete
coverage of the near-IR J, H and K bands.
Note: This model grid originally suffered from a bug in the atomic data,
which affected a few spectral lines. Especially the N_V multiplett at
4933-4944 became far too strong by this bug. The grid was replaced by a
corrected version on 2013 November 4.
Summary of the model atoms:
Notes: Element "G" stands for the generic iron-group element,
which combines the elements from Sc to Ni in solar relative mixture.
In case of the "G" element, the number of levels given in the above table
actually refers to superlevels.
For a couple of lines, contour plots of the equivalent width have been
prepared. The contours are labeled with Wλ
The following contour plot relates the stellar temperature
, which refers to the hydrostatic radius, to the
"effective" temperature T2/3
referring to the radius of
the optical depth 2/3. The contours are labeled with log T2/3