Depth-dependent line blanketing by neutral and ionized metals in a homogeneous model solar photosphere

Line blanketing due to both the neutral and ionized metals is treated here by the modified picket-fence method and applied to the case of a homogeneous model solar photosphere in strict radiative equilibrium. Improvement in fitting the observed photospheric radiation field is noted over a model in which the line absorption coefficient is constant with depth.This work was carried out while the author was at Georgetown College Observatory, Washington, D.C.