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Fig. 9.
Center-to-limb variation of the C I 5380.3 Å line. Panel a: displays the average line bisectors from the disk center (μ = 1.0) toward the solar limb (μ = 0.3). Panel b: average convective spectra of the laser frequency comb (LFC, green curve) and the iron hollow cathode lamp (HCL, black curve) are displayed.
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