{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:DFLXE6KHNOJMZ6R75RIOWFBNSD","short_pith_number":"pith:DFLXE6KH","schema_version":"1.0","canonical_sha256":"19577279476b92ccfa3fec50eb142d90fa43596e2bf63baf24be460c83f976ff","source":{"kind":"arxiv","id":"1208.4224","version":1},"attestation_state":"computed","paper":{"title":"Turbulent Linewidths as a Diagnostic of Self-Gravity in Protostellar Discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Duncan H. Forgan, Jacob B. Simon, Philip J. Armitage","submitted_at":"2012-08-21T09:27:28Z","abstract_excerpt":"We use smoothed particle hydrodynamics simulations of massive protostellar discs to investigate the predicted broadening of molecular lines from discs in which self-gravity is the dominant source of angular momentum transport. The simulations include radiative transfer, and span a range of disc-to-star mass ratios between 0.25 and 1.5. Subtracting off the mean azimuthal flow velocity, we compute the distribution of the in-plane and perpendicular peculiar velocity due to large scale structure and turbulence induced by self-gravity. For the lower mass discs, we show that the characteristic pecul"},"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":"1208.4224","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-21T09:27:28Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"931607ecaeef3937370bcff87653cf8b04f7ff839456f4c1adeddee22a7c9b01","abstract_canon_sha256":"f92893708a991329d0ec3f87af94ed28419f3ee4eae48bb1079424eb4bc874d0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:08.870296Z","signature_b64":"NMShyJuGgUOuixC8P/dRCrSyF/9LMNvJL7AQcTxGuyze8hU5f03cCBdsLNfwoy5pusv2eeuILOqOVaJNY5A1Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19577279476b92ccfa3fec50eb142d90fa43596e2bf63baf24be460c83f976ff","last_reissued_at":"2026-05-18T01:55:08.869806Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:08.869806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Turbulent Linewidths as a Diagnostic of Self-Gravity in Protostellar Discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Duncan H. Forgan, Jacob B. Simon, Philip J. Armitage","submitted_at":"2012-08-21T09:27:28Z","abstract_excerpt":"We use smoothed particle hydrodynamics simulations of massive protostellar discs to investigate the predicted broadening of molecular lines from discs in which self-gravity is the dominant source of angular momentum transport. The simulations include radiative transfer, and span a range of disc-to-star mass ratios between 0.25 and 1.5. Subtracting off the mean azimuthal flow velocity, we compute the distribution of the in-plane and perpendicular peculiar velocity due to large scale structure and turbulence induced by self-gravity. For the lower mass discs, we show that the characteristic pecul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4224","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":""},"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":"1208.4224","created_at":"2026-05-18T01:55:08.869885+00:00"},{"alias_kind":"arxiv_version","alias_value":"1208.4224v1","created_at":"2026-05-18T01:55:08.869885+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4224","created_at":"2026-05-18T01:55:08.869885+00:00"},{"alias_kind":"pith_short_12","alias_value":"DFLXE6KHNOJM","created_at":"2026-05-18T12:27:04.183437+00:00"},{"alias_kind":"pith_short_16","alias_value":"DFLXE6KHNOJMZ6R7","created_at":"2026-05-18T12:27:04.183437+00:00"},{"alias_kind":"pith_short_8","alias_value":"DFLXE6KH","created_at":"2026-05-18T12:27:04.183437+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/DFLXE6KHNOJMZ6R75RIOWFBNSD","json":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD.json","graph_json":"https://pith.science/api/pith-number/DFLXE6KHNOJMZ6R75RIOWFBNSD/graph.json","events_json":"https://pith.science/api/pith-number/DFLXE6KHNOJMZ6R75RIOWFBNSD/events.json","paper":"https://pith.science/paper/DFLXE6KH"},"agent_actions":{"view_html":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD","download_json":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD.json","view_paper":"https://pith.science/paper/DFLXE6KH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1208.4224&json=true","fetch_graph":"https://pith.science/api/pith-number/DFLXE6KHNOJMZ6R75RIOWFBNSD/graph.json","fetch_events":"https://pith.science/api/pith-number/DFLXE6KHNOJMZ6R75RIOWFBNSD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD/action/storage_attestation","attest_author":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD/action/author_attestation","sign_citation":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD/action/citation_signature","submit_replication":"https://pith.science/pith/DFLXE6KHNOJMZ6R75RIOWFBNSD/action/replication_record"}},"created_at":"2026-05-18T01:55:08.869885+00:00","updated_at":"2026-05-18T01:55:08.869885+00:00"}