Fig. 1

Three examples of our spectra. The nominal spectral range of VIMOS in the setup used for the present survey begins at 4100 Å, but the recorded spectral range depends on the location of the slit on the mask and may extend shortward of that limit. From top to bottom, shown are: B289620 (shifted upward by 2), B319396 (aka V192; shifted upward by 1), and B155556 (aka V216). Diamonds mark lines used for velocity measurements: Hβ at 4861 Å, magnesium triplet at 5167–5184 Å, and sodium doublet at 5890–5896 Å.
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