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Spatially compact objects with extremely red color in the rest-frame opticalto near-infrared (0.4--1 ${\rm \mu m}$) and blue color in the rest-frameultraviolet (UV; 0.2--0.4 ${\rm \mu m}$) have been discovered at $5 < z < 9$using the James Webb Space Telescope (JWST). These extremely red objects(JWST-EROs) exhibit spectral energy distributions (SEDs) that are difficult toexplain using a single component of either star-forming galaxies or quasars,leading to two-component models in which the blue UV and extremely red opticalare explained using less-dusty and dusty spectra of galaxies or quasars,respectively. Here, we report the remarkable similarity in SEDs betweenJWST-EROs and blue-excess dust-obscured galaxies (BluDOGs) identified at $2 < z< 3$. BluDOGs are a population of active galactic nuclei (AGNs) with blackholemasses of $\sim10^{8-9}$ M$_\odot$, which are one order of magnitude largerthan those in some JWST-EROs. The Eddington ratios of BluDOGs are one orhigher, whereas those of JWST-EROs are in the range of 0.1--1. Therefore,JWST-EROs are less massive, less active, and more common counterparts inhigher-$z$ of BluDOGs in cosmic noon. Conversely, JWST-EROs have asignificantly higher fraction of those with blue-excess than DOGs. We presentthe average UV spectra of BluDOGs as a comparison to JWST-EROs and discuss acoherent evolutionary scenario for dusty AGN populations.

Similarity between compact extremely red objects discovered with JWST in cosmic dawn and blue-excess dust-obscured galaxies known in cosmic noon