Fig. 9
Intervening Fe i absorption towards the quasar TXS 1331+170: spectrum (black curve) and simultaneous fit to the four transitions (red curve), excluding from the fit FeI2167, which falls on the quasar Lyα emission line. The green curve for the Fe iλ2167 absorption corresponds to a fit with a spatial coverage factor Cf = 0.8. At vhelio = 0 km s-1, the redshift is z = 0.74461.
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