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Powerful radio jets launched by a central supermassive black hole pump a substantial amount of energy into their host galaxies and cluster environment. This feedback from the central AGN is thought to regulate galaxy growth and cooling of the surrounding hot atmosphere. Our ALMA Early Science observations of brightest cluster galaxies in cooling clusters revealed molecular gas filaments extending 5-15 kpc with masses of $10^9$ to a few $10^10$ solar masses, which likely formed from gas cooling out of the clusters' hot atmospheres. I will present new ALMA observations of extended molecular filaments in the Phoenix and PKS0745-191 brightest cluster galaxies, which are drawn up around radio bubbles and show that radio jets interact with cold, dense molecular gas as well as the hot, diffuse intracluster medium.
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