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Fig. 8

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Departure coefficients (b-factors) for selected atomic levels for clumping factors D = 1 and D = 8 and for a set of model atmospheres B4 (for basic global model parameters, see Table 1). From the top panel: H I n = 1 and n = 2; He I 1s 1S, 2s 1S, and 2p 1P; He I 2s 3S and 2p 3P.
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