Fig. 5.
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HI-to-stellar and dust-to-stellar mass ratios as a function of light-weighted stellar age. Thin lines show exponential fits to our individual ETG for our sample and their progenitors from which we select fits that have τ/τerr > 1 and these constitute 63% and 47% of the total for the dust- and HI-to-stellar ratios, respectively. Blue and red lines are the same as in Fig. 2.
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