Fig. 6.
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Mass–metallicity relation of the three z ∼ 8 galaxies (black stars) compared to mean relations observed at z = 0 and 2.2 (Andrews & Martini 2013; Sanders et al. 2020), and the results from numerical simulations at z = 2.2 and 8 (dotted lines) from Ma et al. (2016). Green stars show the results from adopting stellar masses determined by Curti et al. (2022), who quote very small uncertaintes for their stellar masses.
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