Fig. 3.
Top panels: characteristic density ρ−2 at the radius of density slope −2 vs. 3.6 micron luminosity (left panel: MLconst; right panel: L18a), compared to the density scale of Li et al. (2019). Bottom panels: central density ρ0 vs. 3.6 micron luminosity (left panel: MLconst; right panel: L18a), colour-coded by the value of the Einasto index n.
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