Fig. 5.
Top: luminosity-metallicity relation for the Local Group dwarfs (gray dots, McConnachie 2012), Centaurus group dwarfs (gray triangles, Crnojević et al. 2019; Müller et al. 2019c), NGC 1052-DF2 (blue point, Fensch et al. 2019), and MATLAS-2019 (red point). Bottom: metallicity-age relation for Milky Way GCs (gray dots, VandenBerg et al. 2013), GCs from 23 galaxies of the Fornax cluster (turquoise dots, Fahrion et al. 2020b,c), the stacked GC population of NGC 1052-DF2 (blue square, Fensch et al. 2019), and the GCs and stacked GC population of MATLAS-2019 (small red points and large red square).
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