COSMOS2020: Ubiquitous AGN Activity of Massive Quiescent Galaxies at $0<z<5$ Revealed by X-ray and Radio Stacking

Kei Ito, Masayuki Tanaka, Takamitsu Miyaji +8

We characterize the average X-ray and radio properties of quiescent galaxies (QGs) with $\log (M_{\star }/M_{\odot })>10$ at $0<z<5$. QGs are photometrically selected from the latest CO…