{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:DPJKMAP3VXGCQXCDRA773QUJYU","short_pith_number":"pith:DPJKMAP3","schema_version":"1.0","canonical_sha256":"1bd2a601fbadcc285c43883ffdc289c523aa76c6f8c80fd55d0dece830c4a2d3","source":{"kind":"arxiv","id":"2402.15614","version":2},"attestation_state":"computed","paper":{"title":"Spatial Variations of Stellar Elemental Abundances in FIRE Simulations of Milky Way-Mass Galaxies: Patterns Today Mostly Reflect Those at Formation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew Wetzel, Jeremy Bailin, Matthew A. Bellardini, Russell L. Graf","submitted_at":"2024-02-23T21:36:31Z","abstract_excerpt":"Spatial patterns of stellar elemental abundances encode rich information about a galaxy's formation history. We analyze the radial, vertical, and azimuthal variations of metals in stars, both today and at formation, in the FIRE-2 cosmological simulations of Milky Way (MW)-mass galaxies, and we compare with the MW. The radial gradient today is steeper (more negative) for younger stars, which agrees with the MW, although radial gradients are shallower in FIRE-2. Importantly, this age dependence was present already at birth: radial gradients today are only modestly ($\\lesssim$ 0.01 dex kpc$^{-1}$"},"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":"2402.15614","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-02-23T21:36:31Z","cross_cats_sorted":[],"title_canon_sha256":"340af0ba44304026f2b137ecfd2557d529d4126db4028ec55953a184c7ad0171","abstract_canon_sha256":"ef752a14c49d6faa8840bba44ed8fdc42be8f74f35f50db6c874a13c9ecc267e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:49:37.636251Z","signature_b64":"gq6sXe5V7JQUxgU/MxAAKd3FrEEyNfYds5wpWtbkJfm3ItHbq4Vsfb2+2ODR7ulj+iWjjEmq+Is/6oQCpww/Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1bd2a601fbadcc285c43883ffdc289c523aa76c6f8c80fd55d0dece830c4a2d3","last_reissued_at":"2026-07-05T07:49:37.635775Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:49:37.635775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spatial Variations of Stellar Elemental Abundances in FIRE Simulations of Milky Way-Mass Galaxies: Patterns Today Mostly Reflect Those at Formation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew Wetzel, Jeremy Bailin, Matthew A. Bellardini, Russell L. Graf","submitted_at":"2024-02-23T21:36:31Z","abstract_excerpt":"Spatial patterns of stellar elemental abundances encode rich information about a galaxy's formation history. We analyze the radial, vertical, and azimuthal variations of metals in stars, both today and at formation, in the FIRE-2 cosmological simulations of Milky Way (MW)-mass galaxies, and we compare with the MW. The radial gradient today is steeper (more negative) for younger stars, which agrees with the MW, although radial gradients are shallower in FIRE-2. Importantly, this age dependence was present already at birth: radial gradients today are only modestly ($\\lesssim$ 0.01 dex kpc$^{-1}$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.15614","kind":"arxiv","version":2},"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/2402.15614/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":"2402.15614","created_at":"2026-07-05T07:49:37.635833+00:00"},{"alias_kind":"arxiv_version","alias_value":"2402.15614v2","created_at":"2026-07-05T07:49:37.635833+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.15614","created_at":"2026-07-05T07:49:37.635833+00:00"},{"alias_kind":"pith_short_12","alias_value":"DPJKMAP3VXGC","created_at":"2026-07-05T07:49:37.635833+00:00"},{"alias_kind":"pith_short_16","alias_value":"DPJKMAP3VXGCQXCD","created_at":"2026-07-05T07:49:37.635833+00:00"},{"alias_kind":"pith_short_8","alias_value":"DPJKMAP3","created_at":"2026-07-05T07:49:37.635833+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2507.17637","citing_title":"Watching our Galaxy Grow Up: The Mass and Color Evolution of the Milky Way","ref_index":53,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU","json":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU.json","graph_json":"https://pith.science/api/pith-number/DPJKMAP3VXGCQXCDRA773QUJYU/graph.json","events_json":"https://pith.science/api/pith-number/DPJKMAP3VXGCQXCDRA773QUJYU/events.json","paper":"https://pith.science/paper/DPJKMAP3"},"agent_actions":{"view_html":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU","download_json":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU.json","view_paper":"https://pith.science/paper/DPJKMAP3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2402.15614&json=true","fetch_graph":"https://pith.science/api/pith-number/DPJKMAP3VXGCQXCDRA773QUJYU/graph.json","fetch_events":"https://pith.science/api/pith-number/DPJKMAP3VXGCQXCDRA773QUJYU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU/action/storage_attestation","attest_author":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU/action/author_attestation","sign_citation":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU/action/citation_signature","submit_replication":"https://pith.science/pith/DPJKMAP3VXGCQXCDRA773QUJYU/action/replication_record"}},"created_at":"2026-07-05T07:49:37.635833+00:00","updated_at":"2026-07-05T07:49:37.635833+00:00"}