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Fig. 17

image

Relative spectral deviations, (OλMλ) /Oλ, where O and M denote the observed and the model spectra, for the nuclear regions of all DR2 galaxies, vertically sorted by redshift. Unlike in Fig. 16, emission lines and bad pixels are not masked in this plot. Systematic deviations from the starlight model appear as vertical stripes (rest-frame mismatches, e.g., imperfect stellar model or emission lines), while slanted stripes trace observed-frame mismatches (e.g., imperfect sky model). Compare to Fig. 16 of H13.

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