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Fig. 4


Metallicity as a function of the parameter μ0.32. The green line plots the FMR projection as a function of μ0.32 (Mannucci et al. 2011). The left panel shows the individual AMAZE and LSD galaxies at z ~ 3–5 (same symbol codes as in Fig. 2). The average metallicity uncertainty of the sample is shown in the lower-right corner. In the right panel the data are binned by the μ0.32 parameter. The black circles show the average metallicities in each μ0.32 bin, while the red circles show the metallicity of the spectra stacked in the same bins. The black error bars show the dispersion of the average metallicity and μ0.32 at each bin. The vertical red error bars show the error of the metallicity of the stacked spectrum in each bin. The horizontal red error bars show the dispersion of the average μ0.32 in each bin.

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