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Fig. 9.

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Our full-sample SED and others from literature (see text). All the SEDs are normalised by their integrated luminosity between 1000 Å and 1 μm. The AGN spectral composite from Euclid Collaboration: Lusso et al. (2024) is scaled to match our SED (red solid line) at 2200 Å. The black line in the bottom panel shows the number of sources contributing per spectral channel in the average SED. The full-sample composite SED is available in its entirety in machine-readable form in the online journal.

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