Death at watersheds: Galaxy quenching in low-density environments

Open Access

Fig. 5.

Distribution of D_n(4000) index for single galaxies (solid grey line), and for satellite galaxies (dashed lines) and BGGs (solid lines) in LLGs (blue lines) and HLGs (red lines). Vertical lines show the values of D_n(4000) index D_n(4000) = 1.35 (D_n(4000) limit for galaxies with very young stellar populations), and D_n(4000) = 1.75 (limit for VO galaxies with D_n(4000)≥1.75, see text).

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