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Fig. 3

image

Continuum-subtracted emission lines used to determine the gas-phase metallicity in the X-shooter spectrum, as well as the [S ii] doublet. The black line shows the raw spectrum including errors, and the red-shaded areas denote the 90% confidence region of the fit of the emission lines using Gaussians. Grey shaded areas denote wavelength regions that have been omitted in the fitting due to skyline contamination.

This figure is made of several images, please see below:

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