{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:QRTBWVC7RG7BJ3E73ZCJ424F4D","short_pith_number":"pith:QRTBWVC7","schema_version":"1.0","canonical_sha256":"84661b545f89be14ec9fde449e6b85e0f5ad3da9969a69d75fee0a6fe057eceb","source":{"kind":"arxiv","id":"1810.12937","version":1},"attestation_state":"computed","paper":{"title":"Wind Roche lobe overflow in high mass X-ray binaries : a possible mass transfer mechanism for Ultraluminous X-ray sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"I. El Mellah, J. O. Sundqvist, R. Keppens","submitted_at":"2018-10-30T18:04:45Z","abstract_excerpt":"Ultra-luminous X-ray sources (ULX) have so high X-ray luminosities that they were long thought to be accreting intermediate mass black holes. Yet, some ULX have been shown to display periodic modulations and coherent pulsations, suggestive of a neutron star in orbit around a stellar companion and accreting at super-Eddington rates. In this letter, we propose that the mass transfer in ULX could be qualitatively the same as in Supergiant X-ray binaries (SgXB), with a wind from the donor star highly beamed towards the compact object. Since the star does not fill its Roche lobe, this mass transfer"},"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":"1810.12937","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-10-30T18:04:45Z","cross_cats_sorted":[],"title_canon_sha256":"bf46a6da31e3fcec4b2e7c62bdbcd639fc97577df7945b0d2f1e2cbf331c37d5","abstract_canon_sha256":"4c7c1b0791f4b768708c5633a17e133c6daeb710fbff7a0b1e8f240483d46d03"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:11.221031Z","signature_b64":"BA6gT2duvTYlsrqzfBiyaxqB2HvW9tGe6kZVOiidwDUNNC3I8D+EJyr4nLAsWJWDYbtIdKPn63JZSwzjJVWvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84661b545f89be14ec9fde449e6b85e0f5ad3da9969a69d75fee0a6fe057eceb","last_reissued_at":"2026-05-17T23:55:11.220614Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:11.220614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Wind Roche lobe overflow in high mass X-ray binaries : a possible mass transfer mechanism for Ultraluminous X-ray sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"I. El Mellah, J. O. Sundqvist, R. Keppens","submitted_at":"2018-10-30T18:04:45Z","abstract_excerpt":"Ultra-luminous X-ray sources (ULX) have so high X-ray luminosities that they were long thought to be accreting intermediate mass black holes. Yet, some ULX have been shown to display periodic modulations and coherent pulsations, suggestive of a neutron star in orbit around a stellar companion and accreting at super-Eddington rates. In this letter, we propose that the mass transfer in ULX could be qualitatively the same as in Supergiant X-ray binaries (SgXB), with a wind from the donor star highly beamed towards the compact object. Since the star does not fill its Roche lobe, this mass transfer"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12937","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":"1810.12937","created_at":"2026-05-17T23:55:11.220671+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.12937v1","created_at":"2026-05-17T23:55:11.220671+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12937","created_at":"2026-05-17T23:55:11.220671+00:00"},{"alias_kind":"pith_short_12","alias_value":"QRTBWVC7RG7B","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_16","alias_value":"QRTBWVC7RG7BJ3E7","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_8","alias_value":"QRTBWVC7","created_at":"2026-05-18T12:32:46.962924+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/QRTBWVC7RG7BJ3E73ZCJ424F4D","json":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D.json","graph_json":"https://pith.science/api/pith-number/QRTBWVC7RG7BJ3E73ZCJ424F4D/graph.json","events_json":"https://pith.science/api/pith-number/QRTBWVC7RG7BJ3E73ZCJ424F4D/events.json","paper":"https://pith.science/paper/QRTBWVC7"},"agent_actions":{"view_html":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D","download_json":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D.json","view_paper":"https://pith.science/paper/QRTBWVC7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.12937&json=true","fetch_graph":"https://pith.science/api/pith-number/QRTBWVC7RG7BJ3E73ZCJ424F4D/graph.json","fetch_events":"https://pith.science/api/pith-number/QRTBWVC7RG7BJ3E73ZCJ424F4D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D/action/storage_attestation","attest_author":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D/action/author_attestation","sign_citation":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D/action/citation_signature","submit_replication":"https://pith.science/pith/QRTBWVC7RG7BJ3E73ZCJ424F4D/action/replication_record"}},"created_at":"2026-05-17T23:55:11.220671+00:00","updated_at":"2026-05-17T23:55:11.220671+00:00"}