Modelling <i>JWST</i> mid-infrared counts – II. Extension to 5.6 μm, optical, radio, and X-rays

ABSTRACT In Paper I, models derived in 2009 to fit mid-infrared (8–24 micron) source counts from the IRAS, ISO, and Spitzer missions, were found to provide an excellent fit to deep counts at 7.7–21 $\mu$m with JWST, demonstrating that the evolution of dusty star-forming galaxies is well understood. Here, the treatment of optical spectral energy distributions is improved and the counts are extended to 5.6 $\mu$m and optical wavelengths. The models proved a good fit to the latest, deeper, JWST counts. The models are also extended to radio and X-ray wavelengths. Predicted redshift distributions are given for a range of wavelengths and flux-densities.