Fig. 4

Comparison between the UNNOFIT output values with the input ones of a series of synthetic profiles of the line CaI 6103. For each ensemble of input values (abscissae), a set of theoretical profiles has been computed, noised, and then inverted, leading to the output (ordinate). Left: the local velocity gradient. Å. Right the local average magnetic field strength, which is the product of the magnetic field strength by the magnetic filling factor.
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