{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:4OK6YZM4JFDBPZMXJVIC64G4NZ","short_pith_number":"pith:4OK6YZM4","schema_version":"1.0","canonical_sha256":"e395ec659c494617e5974d502f70dc6e426b11b5ee2b3d5fc3acbb5862eb5148","source":{"kind":"arxiv","id":"1809.00090","version":1},"attestation_state":"computed","paper":{"title":"Can Stellar Discs in a Cosmological Setting Avoid Forming Strong Bars?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jacob S. Bauer, Lawrence M. Widrow","submitted_at":"2018-09-01T00:48:30Z","abstract_excerpt":"We investigate the connection between the vertical structure of stellar discs and the formation of bars using high-resolution simulations of galaxies in isolation and in the cosmological context. In particular, we simulate a suite of isolated galaxy models that have the same Toomre Q parameter and swing amplification parameter but that differ in the vertical scale height and velocity dispersion. We find that the onset of bar formation occurs more slowly in models with thicker discs. Moreover, thicker discs and also discs evolved in simulations with larger force softening also appear to be more"},"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":"1809.00090","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-09-01T00:48:30Z","cross_cats_sorted":[],"title_canon_sha256":"7000999a81ad04922911be3223cd88a409bba75f97cd69cd8814ece5c8c7a13c","abstract_canon_sha256":"4a104ba3fbcc768d83c2f950bad6670a945f64b3bc8190fee3b2dea61f81333f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:41.102868Z","signature_b64":"syUtkdC+YbBWFIK+2uu+gQ5tt9Tf5qc9AWqENFc5aHYLZDIAT061REietMOaW6C/1hEhWCdqGRPsHQ58Q6VIBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e395ec659c494617e5974d502f70dc6e426b11b5ee2b3d5fc3acbb5862eb5148","last_reissued_at":"2026-05-17T23:52:41.102198Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:41.102198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Can Stellar Discs in a Cosmological Setting Avoid Forming Strong Bars?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jacob S. Bauer, Lawrence M. Widrow","submitted_at":"2018-09-01T00:48:30Z","abstract_excerpt":"We investigate the connection between the vertical structure of stellar discs and the formation of bars using high-resolution simulations of galaxies in isolation and in the cosmological context. In particular, we simulate a suite of isolated galaxy models that have the same Toomre Q parameter and swing amplification parameter but that differ in the vertical scale height and velocity dispersion. We find that the onset of bar formation occurs more slowly in models with thicker discs. Moreover, thicker discs and also discs evolved in simulations with larger force softening also appear to be more"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00090","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":"1809.00090","created_at":"2026-05-17T23:52:41.102296+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.00090v1","created_at":"2026-05-17T23:52:41.102296+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00090","created_at":"2026-05-17T23:52:41.102296+00:00"},{"alias_kind":"pith_short_12","alias_value":"4OK6YZM4JFDB","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"4OK6YZM4JFDBPZMX","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"4OK6YZM4","created_at":"2026-05-18T12:32:05.422762+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/4OK6YZM4JFDBPZMXJVIC64G4NZ","json":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ.json","graph_json":"https://pith.science/api/pith-number/4OK6YZM4JFDBPZMXJVIC64G4NZ/graph.json","events_json":"https://pith.science/api/pith-number/4OK6YZM4JFDBPZMXJVIC64G4NZ/events.json","paper":"https://pith.science/paper/4OK6YZM4"},"agent_actions":{"view_html":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ","download_json":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ.json","view_paper":"https://pith.science/paper/4OK6YZM4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.00090&json=true","fetch_graph":"https://pith.science/api/pith-number/4OK6YZM4JFDBPZMXJVIC64G4NZ/graph.json","fetch_events":"https://pith.science/api/pith-number/4OK6YZM4JFDBPZMXJVIC64G4NZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ/action/storage_attestation","attest_author":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ/action/author_attestation","sign_citation":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ/action/citation_signature","submit_replication":"https://pith.science/pith/4OK6YZM4JFDBPZMXJVIC64G4NZ/action/replication_record"}},"created_at":"2026-05-17T23:52:41.102296+00:00","updated_at":"2026-05-17T23:52:41.102296+00:00"}