The three steps in the construction of the regular opacity table. (a) Group average opacities are computed for each spectral point in the (ρ,T) table. (b) A Delaunay triangulation is computed in the (ρ,T) plane using each table point as a triangle vertex. Each triangle from the Delaunay triangulation represents a plane in the (ρ,T,κg) space. (c) We then overlay a fine rectanglar grid of opacity points which are computed from their coordinates in the opacity planes (see text for more details).
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