Extended Data Fig. 2: Observed data (black) degraded down to correspond template resolution and best-fitting templates (red) for Binospec spectra (left panels) and broad-band SEDs (right panels) for PSGs from the main sample.

For the spectra we also show 1σ uncertainty profiles (magenta) and fitting residuals (grey). SED panels show observations and best-fitting models as black and red dots correspondingly. The residuals are shown with black stars around a cyan line representing zero level in the same scale as SEDs. The upper right corner of each spectrum contains a median signal-to-noise ratio for a degraded spectrum per pixel. Main spectral features and broad-band filter bandpasses are marked in the upper row of panels.