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Fig. 7

image

Mean mass fraction of SSPs with different ages for the subsamples with different velocity dispersions. Squares, triangles, and diamonds represent the mean mass fraction of SSPs for BCGs, MGs, and FGs, respectively. The bar associated with each symbol represents the standard deviation of the mean mass fraction. For clarity, symbols representing an SSP with the same age but for different sub-samples are offset by δt = −0.1, 0, and 0.1, respectively.

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