{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:YH5PMDQCDP7DX5FEY36FWFLREM","short_pith_number":"pith:YH5PMDQC","schema_version":"1.0","canonical_sha256":"c1faf60e021bfe3bf4a4c6fc5b1571231d0f08bc564d779677ac985ab805f0b3","source":{"kind":"arxiv","id":"1908.02969","version":1},"attestation_state":"computed","paper":{"title":"Gravitational wave emission from unstable accretion discs in tidal disruption events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"16, 20133, (2) Department of Physics, Astronomy, G. Lodato (1), Italy, LE1 7RH, Leicester, Milano, M. Toscani (1), R. Nealon (2) ((1) Dipartimento di Fisica, UK), Universit\\`a degli Studi di Milano, University of Leicester, University Road, Via Celoria","submitted_at":"2019-08-08T08:21:29Z","abstract_excerpt":"Gravitational waves can be emitted by accretion discs if they undergo instabilities that generate a time varying mass quadrupole. In this work we investigate the gravitational signal generated by a thick accretion disc of $1 M_{\\odot}$ around a static super-massive black hole of $10^{6}M_{\\odot}$, assumed to be formed after the tidal disruption of a solar type star. This torus has been shown to be unstable to a global non-axisymmetric hydrodynamic instability, the Papaloizou-Pringle instability, in the case where it is not already accreting and has a weak magnetic field. We start by deriving a"},"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":"1908.02969","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-08T08:21:29Z","cross_cats_sorted":[],"title_canon_sha256":"9d8a2b36753eba777e080f78e7b259b5c18a6896660978f24c0d93aa05b59c8d","abstract_canon_sha256":"41d5ab81455ee9f7f005b344c0de800dd386b5b4124dcf410e6003999a563851"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:58:53.632153Z","signature_b64":"G080pA9KoZYKxnoyeNuDaIai/ZH7AVcN/rOJES81cUyR6RiP7ZRAcNHW6NWNc+rs9NfW76D0ZDlMmSJMJHmIAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1faf60e021bfe3bf4a4c6fc5b1571231d0f08bc564d779677ac985ab805f0b3","last_reissued_at":"2026-07-04T23:58:53.631757Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:58:53.631757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational wave emission from unstable accretion discs in tidal disruption events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"16, 20133, (2) Department of Physics, Astronomy, G. Lodato (1), Italy, LE1 7RH, Leicester, Milano, M. Toscani (1), R. Nealon (2) ((1) Dipartimento di Fisica, UK), Universit\\`a degli Studi di Milano, University of Leicester, University Road, Via Celoria","submitted_at":"2019-08-08T08:21:29Z","abstract_excerpt":"Gravitational waves can be emitted by accretion discs if they undergo instabilities that generate a time varying mass quadrupole. In this work we investigate the gravitational signal generated by a thick accretion disc of $1 M_{\\odot}$ around a static super-massive black hole of $10^{6}M_{\\odot}$, assumed to be formed after the tidal disruption of a solar type star. This torus has been shown to be unstable to a global non-axisymmetric hydrodynamic instability, the Papaloizou-Pringle instability, in the case where it is not already accreting and has a weak magnetic field. We start by deriving a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02969","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/1908.02969/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":"1908.02969","created_at":"2026-07-04T23:58:53.631814+00:00"},{"alias_kind":"arxiv_version","alias_value":"1908.02969v1","created_at":"2026-07-04T23:58:53.631814+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02969","created_at":"2026-07-04T23:58:53.631814+00:00"},{"alias_kind":"pith_short_12","alias_value":"YH5PMDQCDP7D","created_at":"2026-07-04T23:58:53.631814+00:00"},{"alias_kind":"pith_short_16","alias_value":"YH5PMDQCDP7DX5FE","created_at":"2026-07-04T23:58:53.631814+00:00"},{"alias_kind":"pith_short_8","alias_value":"YH5PMDQC","created_at":"2026-07-04T23:58:53.631814+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM","json":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM.json","graph_json":"https://pith.science/api/pith-number/YH5PMDQCDP7DX5FEY36FWFLREM/graph.json","events_json":"https://pith.science/api/pith-number/YH5PMDQCDP7DX5FEY36FWFLREM/events.json","paper":"https://pith.science/paper/YH5PMDQC"},"agent_actions":{"view_html":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM","download_json":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM.json","view_paper":"https://pith.science/paper/YH5PMDQC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1908.02969&json=true","fetch_graph":"https://pith.science/api/pith-number/YH5PMDQCDP7DX5FEY36FWFLREM/graph.json","fetch_events":"https://pith.science/api/pith-number/YH5PMDQCDP7DX5FEY36FWFLREM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM/action/storage_attestation","attest_author":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM/action/author_attestation","sign_citation":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM/action/citation_signature","submit_replication":"https://pith.science/pith/YH5PMDQCDP7DX5FEY36FWFLREM/action/replication_record"}},"created_at":"2026-07-04T23:58:53.631814+00:00","updated_at":"2026-07-04T23:58:53.631814+00:00"}