{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:325QIAUTW5YNUA4TQW3Z2ZIVHW","short_pith_number":"pith:325QIAUT","schema_version":"1.0","canonical_sha256":"debb040293b770da039385b79d65153d95fa980e0facb1fea3ec23211517cb52","source":{"kind":"arxiv","id":"2403.09038","version":1},"attestation_state":"computed","paper":{"title":"Dynamical Friction and Black Holes in Ultralight Dark Matter Solitons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Emily Kendall, Richard Easther, Russell Boey, Yourong Wang","submitted_at":"2024-03-14T02:25:46Z","abstract_excerpt":"We numerically simulate the motion of a black hole as it plunges radially through an ultralight dark matter soliton. We investigate the timescale in which dynamical friction reduces the kinetic energy of the black hole to a minimum, and consider the sensitivity of this timescale to changes in the ULDM particle mass, the total soliton mass, and the mass of the black hole. We contrast our numerical results with a semi-analytic treatment of dynamical friction, and find that the latter is poorly suited to this scenario. In particular, we find that the back-reaction of the soliton to the presence o"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2403.09038","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-03-14T02:25:46Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"2efc41b4433cfd0f43597e9608d036c0a8bcdfb0e2a030df86820bd0ea37835f","abstract_canon_sha256":"024246af32802b57107d618cd86f70014d05b0b238a077d6c8bf072419b6d940"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:55:50.944258Z","signature_b64":"sLW/6TV9wjfO6MyggdLib60pOn1BuPYLznP3HCA561LWZXMK9h/QOFz9ZrtGFbGvNFk/4FNtI5qweEE2MPxbDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"debb040293b770da039385b79d65153d95fa980e0facb1fea3ec23211517cb52","last_reissued_at":"2026-07-05T07:55:50.943849Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:55:50.943849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamical Friction and Black Holes in Ultralight Dark Matter Solitons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Emily Kendall, Richard Easther, Russell Boey, Yourong Wang","submitted_at":"2024-03-14T02:25:46Z","abstract_excerpt":"We numerically simulate the motion of a black hole as it plunges radially through an ultralight dark matter soliton. We investigate the timescale in which dynamical friction reduces the kinetic energy of the black hole to a minimum, and consider the sensitivity of this timescale to changes in the ULDM particle mass, the total soliton mass, and the mass of the black hole. We contrast our numerical results with a semi-analytic treatment of dynamical friction, and find that the latter is poorly suited to this scenario. In particular, we find that the back-reaction of the soliton to the presence o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.09038","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2403.09038/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2403.09038","created_at":"2026-07-05T07:55:50.943907+00:00"},{"alias_kind":"arxiv_version","alias_value":"2403.09038v1","created_at":"2026-07-05T07:55:50.943907+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.09038","created_at":"2026-07-05T07:55:50.943907+00:00"},{"alias_kind":"pith_short_12","alias_value":"325QIAUTW5YN","created_at":"2026-07-05T07:55:50.943907+00:00"},{"alias_kind":"pith_short_16","alias_value":"325QIAUTW5YNUA4T","created_at":"2026-07-05T07:55:50.943907+00:00"},{"alias_kind":"pith_short_8","alias_value":"325QIAUT","created_at":"2026-07-05T07:55:50.943907+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2607.00349","citing_title":"Variability in Supermassive Black-Hole Accretion Rates in Fuzzy Dark Matter Cores due to Black-Hole Wandering","ref_index":59,"is_internal_anchor":false},{"citing_arxiv_id":"2602.11512","citing_title":"Stone Skipping Black Holes in Ultralight Dark Matter Solitons","ref_index":48,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW","json":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW.json","graph_json":"https://pith.science/api/pith-number/325QIAUTW5YNUA4TQW3Z2ZIVHW/graph.json","events_json":"https://pith.science/api/pith-number/325QIAUTW5YNUA4TQW3Z2ZIVHW/events.json","paper":"https://pith.science/paper/325QIAUT"},"agent_actions":{"view_html":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW","download_json":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW.json","view_paper":"https://pith.science/paper/325QIAUT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2403.09038&json=true","fetch_graph":"https://pith.science/api/pith-number/325QIAUTW5YNUA4TQW3Z2ZIVHW/graph.json","fetch_events":"https://pith.science/api/pith-number/325QIAUTW5YNUA4TQW3Z2ZIVHW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW/action/storage_attestation","attest_author":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW/action/author_attestation","sign_citation":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW/action/citation_signature","submit_replication":"https://pith.science/pith/325QIAUTW5YNUA4TQW3Z2ZIVHW/action/replication_record"}},"created_at":"2026-07-05T07:55:50.943907+00:00","updated_at":"2026-07-05T07:55:50.943907+00:00"}