{"paper":{"title":"Solving the cooling flow problem with combined jet-wind AGN feedback","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Combined jet and wind feedback from AGN solves the cooling flow problem in galaxy clusters.","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aoyun He, Feng Yuan, Haiguang Xu, Haojie Xia, Ming Sun, Minhang Guo, Suoqing Ji, Yuan Li, Yuanyuan Zhao","submitted_at":"2025-11-04T18:20:41Z","abstract_excerpt":"Active galactic nucleus (AGN) feedback is widely viewed as the most promising solution to the long-standing cooling flow problem in galaxy clusters, yet previous models prescribe jet properties inconsistent with accretion physics. We perform an idealized hydrodynamic simulation of a galaxy cluster with no merger history and a relaxed state, with its other properties similar to the Perseus cluster using the MACER framework, incorporating both jets and winds whose properties are constrained by general relativistic magnetohydrodynamic simulations of black hole accretion and observations. The comb"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The combined feedback reproduces key observables, including cold gas mass, star formation rate, thermodynamic radial profiles, and black hole growth, while jet-only or wind-only models fail. The success arises from turbulence driven by jet-wind shear that enhances kinetic-to-thermal energy conversion, boosting heating efficiency by factors of three and six relative to wind-only and jet-only cases, respectively.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The jet and wind properties injected into the hydrodynamic simulation are accurately set by general relativistic magnetohydrodynamic simulations of black hole accretion and by observations, and the idealized no-merger relaxed cluster setup is sufficient to capture the dominant physics of a real system like Perseus.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"An idealized simulation of a relaxed Perseus-like cluster shows that combined jet-wind AGN feedback, with GRMHD-constrained properties, reproduces key observables by boosting heating efficiency through shear-driven turbulence.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Combined jet and wind feedback from AGN solves the cooling flow problem in galaxy clusters.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"7ccfd43006e40731c62e687e0eefdbca71a764f13ced24892f4968a85fb95dcc"},"source":{"id":"2511.02796","kind":"arxiv","version":4},"verdict":{"id":"4731ed27-452d-416b-b426-775fcdd3b5e0","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T00:56:26.294482Z","strongest_claim":"The combined feedback reproduces key observables, including cold gas mass, star formation rate, thermodynamic radial profiles, and black hole growth, while jet-only or wind-only models fail. The success arises from turbulence driven by jet-wind shear that enhances kinetic-to-thermal energy conversion, boosting heating efficiency by factors of three and six relative to wind-only and jet-only cases, respectively.","one_line_summary":"An idealized simulation of a relaxed Perseus-like cluster shows that combined jet-wind AGN feedback, with GRMHD-constrained properties, reproduces key observables by boosting heating efficiency through shear-driven turbulence.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The jet and wind properties injected into the hydrodynamic simulation are accurately set by general relativistic magnetohydrodynamic simulations of black hole accretion and by observations, and the idealized no-merger relaxed cluster setup is sufficient to capture the dominant physics of a real system like Perseus.","pith_extraction_headline":"Combined jet and wind feedback from AGN solves the cooling flow problem in galaxy clusters."},"references":{"count":5,"sample":[{"doi":"10.1146/annurev.aa.32.090194.001425","year":1994,"title":"doi:10.1146/annurev.aa.32.090194.001425 , journaltitle =","work_id":"98271cc7-e6c4-4f6a-b670-76c8dd0a9bdd","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1093/mnras/sty3273","year":2018,"title":"2019, MNRAS, 483, 2465, doi: 10.1093/mnras/sty3273","work_id":"774857a2-8911-47dd-9773-2598735e4b28","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.3847/1538-4357/ab107c","year":2019,"title":"AGN Feedback in Elliptical Galaxies: Numerical Simulations","work_id":"f50d9155-511e-4329-abc3-c122219cd55a","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1088/0004-637x/804/2/101","year":2015,"title":"NUMERICAL SIMULATION OF HOT ACCRETION FLOWS. III. REVISITING WIND PROPERTIES USING THE TRAJECTORY APPROACH","work_id":"3a1f192f-7dff-4447-b16b-94ce14546259","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1051/0004-6361:20054107","year":2006,"title":"The Structure of CDM Halos","work_id":"cf4d6750-b2de-422b-b28a-cb52243ccc81","ref_index":5,"cited_arxiv_id":"astro-ph/9511016","is_internal_anchor":true}],"resolved_work":5,"snapshot_sha256":"03f0aed321c818622382cce2d4e8c595773a4a84a561420f02c857b67fee7679","internal_anchors":1},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}