{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:XT6VYU7XBISVPXH54PYXSJ4URV","short_pith_number":"pith:XT6VYU7X","schema_version":"1.0","canonical_sha256":"bcfd5c53f70a2557dcfde3f17927948d7a7bec85fea147ddba824305a41c71d0","source":{"kind":"arxiv","id":"1810.05312","version":1},"attestation_state":"computed","paper":{"title":"Gravitational interactions of stars with supermassive black hole binaries - II. Hypervelocity stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Daniel Kasen, Eliot Quataert, Eric R. Coughlin, Siva Darbha","submitted_at":"2018-10-12T01:37:00Z","abstract_excerpt":"Supermassive black holes (SMBHs) in galactic nuclei can eject hypervelocity stars (HVSs). Using restricted three-body integrations, we study the properties of stars ejected by circular, binary SMBHs as a function of their mass ratios $q = M_2 / M_1$ and separations $a$, focusing on the stellar velocity and angular distributions. We find that the ejection probability is an increasing function of $q$ and $a$, and that the mean ejected velocity scales with $q$ and $a$ similar to previous work but with modified scaling constants. Binary SMBHs tend to eject their fastest stars toward the binary orb"},"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":"1810.05312","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-12T01:37:00Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"7802fbc57f07ffc4d3e5d9da8495644623b8315c77c32cd2eba8b9a37bc205bb","abstract_canon_sha256":"4c80939e513e3fbddc8b2c8bc6a88a780da560cda9645f0a575e4f9eb9ab67a2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:30.220641Z","signature_b64":"MjdyKPx1LZNoh2Y3XSXP2M94bztkBn7NQq2x9RQAW4pRqD3djRuR3Frt3obat+COT3FLrgGRIkWg/xaIGJiDDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcfd5c53f70a2557dcfde3f17927948d7a7bec85fea147ddba824305a41c71d0","last_reissued_at":"2026-05-18T00:02:30.219942Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:30.219942Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational interactions of stars with supermassive black hole binaries - II. Hypervelocity stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Daniel Kasen, Eliot Quataert, Eric R. Coughlin, Siva Darbha","submitted_at":"2018-10-12T01:37:00Z","abstract_excerpt":"Supermassive black holes (SMBHs) in galactic nuclei can eject hypervelocity stars (HVSs). Using restricted three-body integrations, we study the properties of stars ejected by circular, binary SMBHs as a function of their mass ratios $q = M_2 / M_1$ and separations $a$, focusing on the stellar velocity and angular distributions. We find that the ejection probability is an increasing function of $q$ and $a$, and that the mean ejected velocity scales with $q$ and $a$ similar to previous work but with modified scaling constants. Binary SMBHs tend to eject their fastest stars toward the binary orb"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.05312","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":"1810.05312","created_at":"2026-05-18T00:02:30.220042+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.05312v1","created_at":"2026-05-18T00:02:30.220042+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.05312","created_at":"2026-05-18T00:02:30.220042+00:00"},{"alias_kind":"pith_short_12","alias_value":"XT6VYU7XBISV","created_at":"2026-05-18T12:33:01.666342+00:00"},{"alias_kind":"pith_short_16","alias_value":"XT6VYU7XBISVPXH5","created_at":"2026-05-18T12:33:01.666342+00:00"},{"alias_kind":"pith_short_8","alias_value":"XT6VYU7X","created_at":"2026-05-18T12:33:01.666342+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/XT6VYU7XBISVPXH54PYXSJ4URV","json":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV.json","graph_json":"https://pith.science/api/pith-number/XT6VYU7XBISVPXH54PYXSJ4URV/graph.json","events_json":"https://pith.science/api/pith-number/XT6VYU7XBISVPXH54PYXSJ4URV/events.json","paper":"https://pith.science/paper/XT6VYU7X"},"agent_actions":{"view_html":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV","download_json":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV.json","view_paper":"https://pith.science/paper/XT6VYU7X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.05312&json=true","fetch_graph":"https://pith.science/api/pith-number/XT6VYU7XBISVPXH54PYXSJ4URV/graph.json","fetch_events":"https://pith.science/api/pith-number/XT6VYU7XBISVPXH54PYXSJ4URV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV/action/storage_attestation","attest_author":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV/action/author_attestation","sign_citation":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV/action/citation_signature","submit_replication":"https://pith.science/pith/XT6VYU7XBISVPXH54PYXSJ4URV/action/replication_record"}},"created_at":"2026-05-18T00:02:30.220042+00:00","updated_at":"2026-05-18T00:02:30.220042+00:00"}