Fig. 1.
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The L − σ plane. Left panel: the L − σ plane filled by few simulated ETGs followed by the Illustris simulation from z = 4 to z = 0. Each color marks the path of a single galaxy. Right panel: observed L − σ plane. Gray dots are the ETGs with available σ in our sample. The solid line is the least square fit. The arrow shows the direction of motion for two different values of β.
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