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

We characterize the average X-ray and radio properties of quiescent galaxies (QGs) with $mathrmlog(M_⋆ /M_ødot ) 10$ at 0 < z < …

Kei Ito, Masayuki Tanaka, Takamitsu Miyaji, Olivier Ilbert, Olivier B. Kauffmann, Anton M. Koekemoer, Stefano Marchesi, Marko Shuntov, Sune Toft, Francesco Valentino, John R. Weaver