In Fig. 8 we show the limb darkening and
contrast for a continuum test case with different
values of . To compute the limb darkening, we
calculate the intensity average
over the visible surface
for different values of
where
is the
angle between the observer and the normal to the surface. We
similarly calculate the contrast as
over the visible surface for different
. The absolute
values of the limb darkening and the contrast depend strongly
on
, scattering dramatically reduces the
contrast and 'flattens' the limb darkening law. Overall, the limb
darkening is nearly linear in
, as would be
expected from a plane parallel atmosphere with grey temperature
structure.