Image Details
Caption: Figure 15.
Mass comparisons as in Figure 14 plotted now as a function of observed magnitude and the b1000 parameter, a proxy for the degree of recent star formation less sensitive to dust than an NUV-optical color. Some of the redshift-dependent trends in the M* offsets evident in Figure 14 may result from a more fundamental dependence on magnitude. The comparisons reveal little dependence on b1000, despite the fact that the near-IR S82-MGC M* values are less sensitive to biases in M/L owing to recent star formation. The lack of any clear dependence on b1000 in the Portsmouth Passive comparison is particularly striking. Galaxies with higher b1000 values tend to be at greater redshifts, thus explaining the b1000-dependent trend in the Wisconsin comparison.
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