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Fig. 7
Hα formation for the Kurucz (left) and FCHHT-B (right) models. Solid: Planck function Bν at line center. Dashed: angle-averaged radiation Jν at line center. Dotted: total source function Sν at line center. The ticks mark the locations with line-center optical depth τν = 3,1,0.3 from left to right.
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