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We study active galactic nucleus (AGN) feedback in nearby (z<0.35) galaxyclusters from the Planck Sunyaev-Zeldovich (SZ) sample using Chandraobservations. This nearly unbiased mass-selected sample includes both relaxedand disturbed clusters and may reflect the entire AGN feedback cycle. We findthat relaxed clusters better follow the one-to-one relation of cavity powerversus cooling luminosity, while disturbed clusters display higher cavity powerfor a given cooling luminosity, likely reflecting a difference in cooling andfeedback efficiency. Disturbed clusters are also found to contain asymmetriccavities when compared to relaxed clusters, hinting toward the influence of theintracluster medium (ICM) weather on the distribution and morphology of thecavities. Disturbed clusters do not have fewer cavities than relaxed clusters,suggesting that cavities are difficult to disrupt. Thus, multiple cavities area natural outcome of recurrent AGN outbursts. As in previous studies, weconfirm that clusters with short central cooling times, tcool, and low centralentropy values, K0, contain warm ionized (10000 K) or cold molecular (<100 K)gas, consistent with ICM cooling and a precipitation/chaotic cold accretion(CCA) scenario. We analyzed archival MUSE observations that are available for18 clusters. In 11/18 of the cases, the projected optical line emissionfilaments appear to be located beneath or around the cavity rims, indicatingthat AGN feedback plays an important role in forming the warm filaments bylikely enhancing turbulence or uplift. In the remaining cases (7/18), theclusters either lack cavities or their association of filaments with cavitiesis vague, suggesting alternative turbulence-driven mechanisms(sloshing/mergers) or physical time delays are involved.

X-ray Cavity Dynamics and their Role in the Gas Precipitation in Planck Sunyaev-Zeldovich (SZ) Selected Clusters