{"paper":{"title":"Fuzzy dark matter dynamical friction: stalling of globular clusters induced by dynamical heatings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Fuzzy dark matter dynamical friction stalls globular cluster sinking in dwarf galaxies over a Hubble time.","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Adrian Szpilfidel, Jo Bovy, Paola Di Matteo, Pierre Boldrini","submitted_at":"2025-10-01T14:07:49Z","abstract_excerpt":"We present a new implementation of fuzzy dark matter (FDM) dynamical friction within the galpy framework, enabling orbital integrations of globular clusters (GCs) across a broad range of halo-to-GC mass ratios and boson masses. In this alternative DM scenario, dynamical friction is reduced or even suppressed by heating induced by FDM density granules. We further quantify the role of baryons and solitonic cores, natural consequences of FDM in galaxies, on the efficiency of orbital decay and the long-term survival of GCs. The most significant deviations from the cold DM (CDM) paradigm arise in t"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"FDM dynamical friction can stall the inspiral of GCs over a Hubble time in the dwarf-galaxy regime, thereby preventing their sinking into galactic centers and halting the canonical galactic cannibalism of clusters.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The heating induced by FDM density granules is modeled accurately enough in the galpy implementation to suppress dynamical friction across the explored range of halo-to-GC mass ratios and boson masses, with the FDM-only case serving as a conservative lower bound on GC survival.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Fuzzy dark matter suppresses dynamical friction on globular clusters via granule heating, stalling their orbital decay in dwarf galaxies over a Hubble time and producing bimodal radial distributions that encode the boson mass.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Fuzzy dark matter dynamical friction stalls globular cluster sinking in dwarf galaxies over a Hubble time.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"b34cde4b5a0271a4bc0ccf1649755588d22e15291647ad78d46c90f8477cc12a"},"source":{"id":"2510.00927","kind":"arxiv","version":2},"verdict":{"id":"472037a5-8c60-4d93-b213-29c446601d7e","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T10:43:37.661463Z","strongest_claim":"FDM dynamical friction can stall the inspiral of GCs over a Hubble time in the dwarf-galaxy regime, thereby preventing their sinking into galactic centers and halting the canonical galactic cannibalism of clusters.","one_line_summary":"Fuzzy dark matter suppresses dynamical friction on globular clusters via granule heating, stalling their orbital decay in dwarf galaxies over a Hubble time and producing bimodal radial distributions that encode the boson mass.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The heating induced by FDM density granules is modeled accurately enough in the galpy implementation to suppress dynamical friction across the explored range of halo-to-GC mass ratios and boson masses, with the FDM-only case serving as a conservative lower bound on GC survival.","pith_extraction_headline":"Fuzzy dark matter dynamical friction stalls globular cluster sinking in dwarf galaxies over a Hubble time."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2510.00927/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"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"}