Greatest Uncertainties and Approximations
 Current limitations in our understanding of metallic condensates  and lattice structure in strong B and for heavy elements.
 Sharp transition from vacuum to a smooth metallic surface. Effects of the macroscopic surface structure neglected.
 Surface made of pure Fe (effects of mixed composition, impurities..)
 Quasi-free e- gas inside the star. Lattice structure of the linear chains neglected.
 Unpolarized vacuum outside. Neglect vacuum birefringence.
 Damping effects neglected. e- gas treated as a cold plasma.
 The reduced emissivity  will affect the meridional T variation. Profiles in the literature are computed assuming a perfect bb emitter at the star surface.
 Further effect on the crustal T due to dissipation of  rapidly attenuated waves
Š..