{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:7IEMQQ5CTZVOYNRDVUFPTO3W5F","short_pith_number":"pith:7IEMQQ5C","schema_version":"1.0","canonical_sha256":"fa08c843a29e6aec3623ad0af9bb76e9430881a0de6e522a7334ac3bc56d0e0d","source":{"kind":"arxiv","id":"0901.3157","version":1},"attestation_state":"computed","paper":{"title":"The Formation of Massive Star Systems by Accretion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Andrew J. Cunningham, Christopher F. McKee, Mark R. Krumholz, Richard I. Klein, Stella S. R. Offner","submitted_at":"2009-01-20T21:09:14Z","abstract_excerpt":"Massive stars produce so much light that the radiation pressure they exert on the gas and dust around them is stronger than their gravitational attraction, a condition that has long been expected to prevent them from growing by accretion. We present three-dimensional radiation-hydrodynamic simulations of the collapse of a massive prestellar core and find that radiation pressure does not halt accretion. Instead, gravitational and Rayleigh-Taylor instabilities channel gas onto the star system through non-axisymmetric disks and filaments that self-shield against radiation, while allowing radiatio"},"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":"0901.3157","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-01-20T21:09:14Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"da4c71a83f7b06d8c1431cdf9cd44a88128919310f3065034806575fe43baec5","abstract_canon_sha256":"a6ee70ca3f7a058afda2b6def7b54ae15ae5a99de538fbedce01754c9fd249a5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:21.904235Z","signature_b64":"t29QPzh93OffXlaQrSOD3nIrqQoTi9KQIQvxe2xlnh4+9gFrcmCpzDtTsAWJU2/atKFQHJXuw2d5PipeicmTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa08c843a29e6aec3623ad0af9bb76e9430881a0de6e522a7334ac3bc56d0e0d","last_reissued_at":"2026-05-18T04:28:21.903689Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:21.903689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Formation of Massive Star Systems by Accretion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Andrew J. Cunningham, Christopher F. McKee, Mark R. Krumholz, Richard I. Klein, Stella S. R. Offner","submitted_at":"2009-01-20T21:09:14Z","abstract_excerpt":"Massive stars produce so much light that the radiation pressure they exert on the gas and dust around them is stronger than their gravitational attraction, a condition that has long been expected to prevent them from growing by accretion. We present three-dimensional radiation-hydrodynamic simulations of the collapse of a massive prestellar core and find that radiation pressure does not halt accretion. Instead, gravitational and Rayleigh-Taylor instabilities channel gas onto the star system through non-axisymmetric disks and filaments that self-shield against radiation, while allowing radiatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.3157","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":"0901.3157","created_at":"2026-05-18T04:28:21.903757+00:00"},{"alias_kind":"arxiv_version","alias_value":"0901.3157v1","created_at":"2026-05-18T04:28:21.903757+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.3157","created_at":"2026-05-18T04:28:21.903757+00:00"},{"alias_kind":"pith_short_12","alias_value":"7IEMQQ5CTZVO","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_16","alias_value":"7IEMQQ5CTZVOYNRD","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_8","alias_value":"7IEMQQ5C","created_at":"2026-05-18T12:25:58.837520+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/7IEMQQ5CTZVOYNRDVUFPTO3W5F","json":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F.json","graph_json":"https://pith.science/api/pith-number/7IEMQQ5CTZVOYNRDVUFPTO3W5F/graph.json","events_json":"https://pith.science/api/pith-number/7IEMQQ5CTZVOYNRDVUFPTO3W5F/events.json","paper":"https://pith.science/paper/7IEMQQ5C"},"agent_actions":{"view_html":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F","download_json":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F.json","view_paper":"https://pith.science/paper/7IEMQQ5C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0901.3157&json=true","fetch_graph":"https://pith.science/api/pith-number/7IEMQQ5CTZVOYNRDVUFPTO3W5F/graph.json","fetch_events":"https://pith.science/api/pith-number/7IEMQQ5CTZVOYNRDVUFPTO3W5F/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F/action/storage_attestation","attest_author":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F/action/author_attestation","sign_citation":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F/action/citation_signature","submit_replication":"https://pith.science/pith/7IEMQQ5CTZVOYNRDVUFPTO3W5F/action/replication_record"}},"created_at":"2026-05-18T04:28:21.903757+00:00","updated_at":"2026-05-18T04:28:21.903757+00:00"}