{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:QK5ZL44IW2BXYA7BWRW6B4LRPB","short_pith_number":"pith:QK5ZL44I","schema_version":"1.0","canonical_sha256":"82bb95f388b6837c03e1b46de0f171784b2011d7a89bf636d4f9c4ef555562fc","source":{"kind":"arxiv","id":"1509.03841","version":5},"attestation_state":"computed","paper":{"title":"Galactic archaeology of a thick disc: Excavating ESO 533-4 with VIMOS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"E. Laurikainen, H. Salo, J. Janz, P. Yoachim, S. Comer\\'on","submitted_at":"2015-09-13T12:14:11Z","abstract_excerpt":"The formation mechanisms of thick discs are under discussion. Thick discs might have formed either at high redshift on a short time-scale or might have been built slowly over time. They may have an internal or an external origin. Here we study in detail the kinematics and the stellar populations of the thick disc of ESO533-4. ESO533-4 is a nearby bulgeless galaxy.\n  We present the first ever IFU study of an edge-on galaxy with enough depth to study the thick disc. We exposed ESO533-4 with VIMOS@VLT for 6.5hours. The FOV covered an axial extent 0.1-0.7r_25 (1-7kpc). We used pPXF and the MILES l"},"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":"1509.03841","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-13T12:14:11Z","cross_cats_sorted":[],"title_canon_sha256":"3cbd9b65918a20f161fff9a9ac5fc16dbb22870d0a729e407349a8f248c8ff7a","abstract_canon_sha256":"391cc73c6813631a619820a77c723dcf06bdef53e64123d55634cb76ec32aa1f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:20.463248Z","signature_b64":"+6xDKxl5bz1CoZ/eKGyZAR8YBZ4zlAuGgIU1yQINnC8DvGGh8MpYCGcmJ71Jhl8nEESs4X5k0bVa4QvN02tKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82bb95f388b6837c03e1b46de0f171784b2011d7a89bf636d4f9c4ef555562fc","last_reissued_at":"2026-05-18T01:29:20.462406Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:20.462406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Galactic archaeology of a thick disc: Excavating ESO 533-4 with VIMOS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"E. Laurikainen, H. Salo, J. Janz, P. Yoachim, S. Comer\\'on","submitted_at":"2015-09-13T12:14:11Z","abstract_excerpt":"The formation mechanisms of thick discs are under discussion. Thick discs might have formed either at high redshift on a short time-scale or might have been built slowly over time. They may have an internal or an external origin. Here we study in detail the kinematics and the stellar populations of the thick disc of ESO533-4. ESO533-4 is a nearby bulgeless galaxy.\n  We present the first ever IFU study of an edge-on galaxy with enough depth to study the thick disc. We exposed ESO533-4 with VIMOS@VLT for 6.5hours. The FOV covered an axial extent 0.1-0.7r_25 (1-7kpc). We used pPXF and the MILES l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.03841","kind":"arxiv","version":5},"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":"1509.03841","created_at":"2026-05-18T01:29:20.462545+00:00"},{"alias_kind":"arxiv_version","alias_value":"1509.03841v5","created_at":"2026-05-18T01:29:20.462545+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.03841","created_at":"2026-05-18T01:29:20.462545+00:00"},{"alias_kind":"pith_short_12","alias_value":"QK5ZL44IW2BX","created_at":"2026-05-18T12:29:37.295048+00:00"},{"alias_kind":"pith_short_16","alias_value":"QK5ZL44IW2BXYA7B","created_at":"2026-05-18T12:29:37.295048+00:00"},{"alias_kind":"pith_short_8","alias_value":"QK5ZL44I","created_at":"2026-05-18T12:29:37.295048+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/QK5ZL44IW2BXYA7BWRW6B4LRPB","json":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB.json","graph_json":"https://pith.science/api/pith-number/QK5ZL44IW2BXYA7BWRW6B4LRPB/graph.json","events_json":"https://pith.science/api/pith-number/QK5ZL44IW2BXYA7BWRW6B4LRPB/events.json","paper":"https://pith.science/paper/QK5ZL44I"},"agent_actions":{"view_html":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB","download_json":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB.json","view_paper":"https://pith.science/paper/QK5ZL44I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1509.03841&json=true","fetch_graph":"https://pith.science/api/pith-number/QK5ZL44IW2BXYA7BWRW6B4LRPB/graph.json","fetch_events":"https://pith.science/api/pith-number/QK5ZL44IW2BXYA7BWRW6B4LRPB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB/action/storage_attestation","attest_author":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB/action/author_attestation","sign_citation":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB/action/citation_signature","submit_replication":"https://pith.science/pith/QK5ZL44IW2BXYA7BWRW6B4LRPB/action/replication_record"}},"created_at":"2026-05-18T01:29:20.462545+00:00","updated_at":"2026-05-18T01:29:20.462545+00:00"}