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Fig. 7

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Rows from top to bottom: continuum maps of the three TIP-II scans used for the velocity calibration for ChroTel. He i 10 830 Åabsorption depth. He i LOS velocities as determined from the TIP-II spectra. He i LOS velocities as reconstructed from the ChroTel filtergrams (only filtergrams #3–#5; one set of αi, same weighting for all pixels. See Sect. 5.1).

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