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Fig. 11.

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Spatial distribution of the velocity along the LOS inferred from the Doppler shift of the Si I 10827 Å (left), Ca II 8542 Å (middle), and He I 10830 Å (right) spectral line centres. The contours tentatively define the area corresponding to the umbra and penumbra computed from the continuum intensity maps presented in Figure 2.

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