{"schema":"pubphys.bundle/1","record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"f6437679414cec067d0d2c2093d821d08b109111780af45b3cf48e1a16be9aaf","created":"2026-10-03T07:17:55Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["09accbaed3934624b5734eea03da8c930ea8ff01c1dddff48a801f9cf6768401","5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"d68fc96a3e78ed1d59fae742881bf16fb4daede2219f439332a6ffaf400fe5d8","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"value","assisted_by":[],"external_id":"astro.galaxy-quenching.agn-coupling","kind":"well-posed","literature_status":"open","n":"1","parents":[{"note":"","parent_revision":"09accbaed3934624b5734eea03da8c930ea8ff01c1dddff48a801f9cf6768401","relation":"special_case"}],"plain":"Simulations assume that a few percent of the energy released by a growing black hole heats or pushes the surrounding gas. Whether real outflows carry this much energy has not been measured reliably.","posed_since":"","precise":"Measure the coupling efficiency epsilon_f = dE_kin,outflow/dt divided by the AGN bolometric luminosity $L_{\\mathrm{bol}}$, summed over ionized, neutral and molecular outflow phases, as a function of $L_{\\mathrm{bol}}$ and Eddington ratio, and compare with the values $\\sim 0.05-0.15$ used in cosmological simulations. The answer is the measured distribution of $\\epsilon_f$ with its dependence on $L_{\\mathrm{bol}}$.","problem_ref":null,"references":"","settled_by":"Spatially resolved multiphase outflow measurements (JWST integral-field spectroscopy, ALMA, X-ray absorption) for a luminosity-complete AGN sample.","status_note":"","title":"What fraction of black hole energy couples to galactic 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