Fig. 2.
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Panel (a): Normalized peak intensity of Mg I 12.32 μm line calculated by RH 1.5D for MURaM model. Panel (b): Sunspot umbra. Panel (c): Quiet Sun. The blue crosses in panels b and c mark the pixels used for the analysis in Section 3. Note that the white sprinkles indicate points where the radiative transfer calculation fails to converge or crashes.
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