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Fig. 8
Departure coefficients log bi for the five lowest levels of H i as a function of continuum optical depth τ5000 referring to λ = 5000 Å in the model atmosphere 6530/3.96/−0.05. Tick marks indicate the locations of core-to-wing transition (0.85 to 0.95 in normalized flux) formation depths for Hα and Hβ.
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