{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:5OCQMYPBDABFUDLRR4DYJHG3FV","short_pith_number":"pith:5OCQMYPB","schema_version":"1.0","canonical_sha256":"eb850661e118025a0d718f07849cdb2d5635d87d6c49cc1f1cf04027582202f6","source":{"kind":"arxiv","id":"1512.05788","version":2},"attestation_state":"computed","paper":{"title":"A transition in circumbinary accretion discs at a binary mass ratio of 1:25","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.HE","authors_text":"Andrew I. MacFadyen, Brian D. Farris, Daniel J. D'Orazio, Paul Duffell, Zoltan Haiman","submitted_at":"2015-12-17T21:00:59Z","abstract_excerpt":"We study circumbinary accretion discs in the framework of the restricted three-body problem (R3Bp) and via numerically solving the height-integrated equations of viscous hydrodynamics. Varying the mass ratio of the binary, we find a pronounced change in the behaviour of the disc near mass ratio $q \\equiv M_s/M_p \\sim 0.04$. For mass ratios above $q=0.04$, solutions for the hydrodynamic flow transition from steady, to strongly-fluctuating; a narrow annular gap in the surface density around the secondary's orbit changes to a hollow central cavity; and a spatial symmetry is lost, resulting in a l"},"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":"1512.05788","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-12-17T21:00:59Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"1d006cb1b61beb3bed9977aa433f8a1d1fbfbb02e5a1d8941d68e955629593e6","abstract_canon_sha256":"3b6c5690452dd2be2c8fd78b6b2b5d7693ddc4107ae5f510204daaf5f1a1f615"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:15:22.872329Z","signature_b64":"NPrxsISaxFv+fphXXnXhTNxrvRkT4LiNmN0chTHKj0qKsCQCNNeLQBKwBddGWz8hwkA0RQ7kb+NOk7FdQvXtCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb850661e118025a0d718f07849cdb2d5635d87d6c49cc1f1cf04027582202f6","last_reissued_at":"2026-05-18T01:15:22.871590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:15:22.871590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A transition in circumbinary accretion discs at a binary mass ratio of 1:25","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.HE","authors_text":"Andrew I. MacFadyen, Brian D. Farris, Daniel J. D'Orazio, Paul Duffell, Zoltan Haiman","submitted_at":"2015-12-17T21:00:59Z","abstract_excerpt":"We study circumbinary accretion discs in the framework of the restricted three-body problem (R3Bp) and via numerically solving the height-integrated equations of viscous hydrodynamics. Varying the mass ratio of the binary, we find a pronounced change in the behaviour of the disc near mass ratio $q \\equiv M_s/M_p \\sim 0.04$. For mass ratios above $q=0.04$, solutions for the hydrodynamic flow transition from steady, to strongly-fluctuating; a narrow annular gap in the surface density around the secondary's orbit changes to a hollow central cavity; and a spatial symmetry is lost, resulting in a l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.05788","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1512.05788","created_at":"2026-05-18T01:15:22.871694+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.05788v2","created_at":"2026-05-18T01:15:22.871694+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.05788","created_at":"2026-05-18T01:15:22.871694+00:00"},{"alias_kind":"pith_short_12","alias_value":"5OCQMYPBDABF","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_16","alias_value":"5OCQMYPBDABFUDLR","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_8","alias_value":"5OCQMYPB","created_at":"2026-05-18T12:29:05.191682+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.23452","citing_title":"Insights from Analytical Theory of Eccentric Circumbinary Disks II. Forced Modes and Resonance for Precessing Binaries","ref_index":100,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV","json":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV.json","graph_json":"https://pith.science/api/pith-number/5OCQMYPBDABFUDLRR4DYJHG3FV/graph.json","events_json":"https://pith.science/api/pith-number/5OCQMYPBDABFUDLRR4DYJHG3FV/events.json","paper":"https://pith.science/paper/5OCQMYPB"},"agent_actions":{"view_html":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV","download_json":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV.json","view_paper":"https://pith.science/paper/5OCQMYPB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.05788&json=true","fetch_graph":"https://pith.science/api/pith-number/5OCQMYPBDABFUDLRR4DYJHG3FV/graph.json","fetch_events":"https://pith.science/api/pith-number/5OCQMYPBDABFUDLRR4DYJHG3FV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV/action/storage_attestation","attest_author":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV/action/author_attestation","sign_citation":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV/action/citation_signature","submit_replication":"https://pith.science/pith/5OCQMYPBDABFUDLRR4DYJHG3FV/action/replication_record"}},"created_at":"2026-05-18T01:15:22.871694+00:00","updated_at":"2026-05-18T01:15:22.871694+00:00"}