{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:6F7ZQ4NF7YC3LBD77NBXXBEIHJ","short_pith_number":"pith:6F7ZQ4NF","schema_version":"1.0","canonical_sha256":"f17f9871a5fe05b5847ffb437b84883a6117a8d8c6f4590efe5affc766bc187d","source":{"kind":"arxiv","id":"2501.12760","version":1},"attestation_state":"computed","paper":{"title":"The Impact of Bar-induced Non-Circular Motions on the Measurement of Galactic Rotation Curves","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jie Liu, Juntai Shen, Zhi Li","submitted_at":"2025-01-22T09:53:50Z","abstract_excerpt":"We study the impact of bar-induced non-circular motions on the derivation of galactic rotation curves (RCs) using hydrodynamic simulations and observational data from the PHANGS-ALMA survey. We confirm that non-circular motions induced by a bar can significantly bias RCs derived from the conventional tilted-ring method, consistent with previous findings. The shape of the derived RC depends on the position angle difference ($\\Delta \\phi$) between the major axes of the bar and the disk in the face-on plane. For $\\left|\\Delta \\phi\\right|\\lesssim40^\\circ$, non-circular motions produce a bar-induce"},"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":"2501.12760","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-01-22T09:53:50Z","cross_cats_sorted":[],"title_canon_sha256":"4c4b0298d889be680fd5ca7f2b1d84970390c4f1973e4f7a56562f5f78e1fece","abstract_canon_sha256":"ecc4d02ba96d8dee3ea152eca276b55bddb9bb2c70aaad4ff490fd96ffda93a0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:03:58.242757Z","signature_b64":"fv37HL1pE1obUvVN8Jw2O4MZeIOdske3g9hItMC5DriBgVsXOBnyJfhmmfStXKDSajSa2mE6lmbci1B8mn+OBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f17f9871a5fe05b5847ffb437b84883a6117a8d8c6f4590efe5affc766bc187d","last_reissued_at":"2026-07-05T10:03:58.242253Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:03:58.242253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Impact of Bar-induced Non-Circular Motions on the Measurement of Galactic Rotation Curves","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jie Liu, Juntai Shen, Zhi Li","submitted_at":"2025-01-22T09:53:50Z","abstract_excerpt":"We study the impact of bar-induced non-circular motions on the derivation of galactic rotation curves (RCs) using hydrodynamic simulations and observational data from the PHANGS-ALMA survey. We confirm that non-circular motions induced by a bar can significantly bias RCs derived from the conventional tilted-ring method, consistent with previous findings. The shape of the derived RC depends on the position angle difference ($\\Delta \\phi$) between the major axes of the bar and the disk in the face-on plane. For $\\left|\\Delta \\phi\\right|\\lesssim40^\\circ$, non-circular motions produce a bar-induce"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.12760","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2501.12760/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2501.12760","created_at":"2026-07-05T10:03:58.242321+00:00"},{"alias_kind":"arxiv_version","alias_value":"2501.12760v1","created_at":"2026-07-05T10:03:58.242321+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.12760","created_at":"2026-07-05T10:03:58.242321+00:00"},{"alias_kind":"pith_short_12","alias_value":"6F7ZQ4NF7YC3","created_at":"2026-07-05T10:03:58.242321+00:00"},{"alias_kind":"pith_short_16","alias_value":"6F7ZQ4NF7YC3LBD7","created_at":"2026-07-05T10:03:58.242321+00:00"},{"alias_kind":"pith_short_8","alias_value":"6F7ZQ4NF","created_at":"2026-07-05T10:03:58.242321+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/6F7ZQ4NF7YC3LBD77NBXXBEIHJ","json":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ.json","graph_json":"https://pith.science/api/pith-number/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/graph.json","events_json":"https://pith.science/api/pith-number/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/events.json","paper":"https://pith.science/paper/6F7ZQ4NF"},"agent_actions":{"view_html":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ","download_json":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ.json","view_paper":"https://pith.science/paper/6F7ZQ4NF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2501.12760&json=true","fetch_graph":"https://pith.science/api/pith-number/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/graph.json","fetch_events":"https://pith.science/api/pith-number/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/action/storage_attestation","attest_author":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/action/author_attestation","sign_citation":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/action/citation_signature","submit_replication":"https://pith.science/pith/6F7ZQ4NF7YC3LBD77NBXXBEIHJ/action/replication_record"}},"created_at":"2026-07-05T10:03:58.242321+00:00","updated_at":"2026-07-05T10:03:58.242321+00:00"}