AGN feedback duty cycle in Planck SZ selected clusters using Chandra observations. Issue 1 (25th August 2022)

• Record Type: Journal Article
• Authors: Olivares, V; Su, Y; Nulsen, P; Kraft, R; Somboonpanyakul, T; Andrade-Santos, F; Jones, C; Forman, W
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 516:Issue 1(2022)
• Page Start: L101
• Page End: L106
• Publication Date: 2022-08-25
• Subjects: Galaxy: evolution -- galaxies: clusters: general -- intergalactic mediumX-rays: galaxies: clusters; galaxies: jets; Astronomy -- Research -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnrasl/slac096
• Languages: English
• ISSNs: 1745-3933

Abstract

ABSTRACT: We present a systematic study of X-ray cavities using archival Chandra observations of nearby galaxy clusters selected by their Sunyaev–Zel'dovich (SZ) signature in the Planck survey, which provides a nearly unbiased mass-selected sample to explore the entire AGN feedback duty cycle. Based on X-ray image analysis, we report that 30 of the 164 clusters show X-ray cavities, which corresponds to a detection fraction of 18 per cent. After correcting for spatial resolution to match the high-$\mathit{ z}$ SPT-SZ sample, the detection fraction decreases to 9 per cent, consistent with the high-z sample, hinting that the AGN feedback has not evolved across almost 8 Gyrs. Our finding agrees with the lack of evolution of cool-core clusters fraction. We calculate the cavity power, P cav, and find that most systems of our sample have enough AGN heating to offset the radiative losses of the intracluster medium.