DCBH detection limits in the NEP. The thick dashed line represents the combined JWST/NIRCam 5σ flux detection limits expressed in AB magnitudes across the NEP spokes. The colored lines show the photometric fluxes of the Pacucci et al. (2016) 5 × 10⁶ M_⊙ DCBH model at z = 6, 10, 15, and 20 in the set of NIRCam filters used by PEARLS across the NEP field. The thin solid black line shows the z = 6 version of the DCBH model spectrum on which the photometric predictions are based, but offset by 0.5 mag for clarity. As can be seen, this Pacucci et al. (2016) 5 × 10⁶ M_⊙ DCBH model remains detectable up to z = 20 in the reddest NIRCam filters used. The photometric SEDs are characterized by a significantly red slope across the NIRCam bands and are relatively featureless except for the drop at the Lyα limit and the bump seen in the F444W filter at z = 6 SED, which is due to strong Hα emission. This is not seen in the higher-redshift SEDs, since it redshifts out of the NIRcam range at z ≳ 6.9.