Revisiting the Color–Color Selection: Submillimeter and AGN Properties of NUV–r–J Selected Quiescent Galaxies

Abstract We examine the robustness of color–color selection quiescent galaxies (QGs) against contamination dusty star-forming using latest submillimeter data. selected 18,304 QG candidates out to z ∼ 3 commonly adopted NUV – r J based on high-quality multiwavelength COSMOS2015 catalog. Using extremely deep 450 and 850 μ m catalogs from JCMT SCUBA-2 Large Programs, S2COSMOS STUDIES, as well Atacama Millimeter/submillimeter Array submillimeter, VLA GHz, Spitzer MIPS 24 catalogs, we identified luminous, dusty, among candidates. also conducted stacking analyses in images look for less-luminous By cross matching GHz data, were able identify a subgroup “IR-radio-bright” QGs that possess strong signals. The potential these luminous accounts approximately 10% color-selected In addition, there exists spatial correlation between at ≲60 kpc scale. Finally, found high fraction radio active galactic nuclei (AGNs) < 1.5. Our data show AGNs, which may suggest connection quenching process radio-mode AGN feedback.