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Fig. 9

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Illustration of the radiative acceleration for a model with 10 M and T* ≈ 115 kK which is not capable of launching a wind from the “hot iron bump” and thus is dynamically not converged: In the inner part, the total radiative acceleration (red dashed line) approaches Γrad = 1, but does not surpass it sufficiently to launch a wind that could be maintained in the following deceleration region.

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