{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:3CCEYPYPRBQMWBH3B754TQRS55","short_pith_number":"pith:3CCEYPYP","schema_version":"1.0","canonical_sha256":"d8844c3f0f8860cb04fb0ffbc9c232ef4f5393576e401075e3b292e0f29fdf20","source":{"kind":"arxiv","id":"1603.01139","version":1},"attestation_state":"computed","paper":{"title":"The evolution of metallicity and metallicity gradients from z=2.7-0.6 with KMOS3D","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Alessandra Beifiori, Andreas Burkert, Audrey Galametz, Bernhard R\\\"ottgers, David J. Wilman, David Rosario, Dieter Lutz, Emily Wisnioski, Erica J. Nelson, Eva Wuyts, Gabriel B. Brammer, Hannah \\\"Ubler, Ivelina G. Momcheva, Jeffrey Chan, J. Trevor Mendel, Kaushala Bandara, Ken-ichi Tadaki, Linda J. Tacconi, Matteo Fossati, Natascha M. F\\\"orster Schreiber, Philipp Lang, Pieter van Dokkum, Ralf Bender, Reinhard Genzel, Ric Davies, Roberto P. Saglia, Sandesh K. Kulkarni, Sirio Belli, Stella Seitz, Stijn Wuyts, Thorsten Naab","submitted_at":"2016-03-03T15:48:43Z","abstract_excerpt":"We present measurements of the [NII]/Ha ratio as a probe of gas-phase oxygen abundance for a sample of 419 star-forming galaxies at z=0.6-2.7 from the KMOS3D near-IR multi-IFU survey. The mass-metallicity relation (MZR) is determined consistently with the same sample selection, metallicity tracer, and methodology over the wide redshift range probed by the survey. We find good agreement with long-slit surveys in the literature, except for the low-mass slope of the relation at z~2.3, where this sample is less biased than previous samples based on optical spectroscopic redshifts. In this regime w"},"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":"1603.01139","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-03T15:48:43Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"e7dff0c881bdda1ce993b098909f51064a981af35cbec9578bd33461328dd78c","abstract_canon_sha256":"4d113b8d2b29a0ba3dfc0e712c12503dc3f895198cf4386e4a4a959a77cd37d9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:42.503157Z","signature_b64":"vBbzgTNAA6Fp/b/vkcj2ZFH8mUKBMxiib8eX5Ske7cP2UKYP3n4wYchTXEZBJaoFEFQ9LJ4Ozt+VBjkaH59YAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8844c3f0f8860cb04fb0ffbc9c232ef4f5393576e401075e3b292e0f29fdf20","last_reissued_at":"2026-05-18T01:08:42.502646Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:42.502646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The evolution of metallicity and metallicity gradients from z=2.7-0.6 with KMOS3D","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Alessandra Beifiori, Andreas Burkert, Audrey Galametz, Bernhard R\\\"ottgers, David J. Wilman, David Rosario, Dieter Lutz, Emily Wisnioski, Erica J. Nelson, Eva Wuyts, Gabriel B. Brammer, Hannah \\\"Ubler, Ivelina G. Momcheva, Jeffrey Chan, J. Trevor Mendel, Kaushala Bandara, Ken-ichi Tadaki, Linda J. Tacconi, Matteo Fossati, Natascha M. F\\\"orster Schreiber, Philipp Lang, Pieter van Dokkum, Ralf Bender, Reinhard Genzel, Ric Davies, Roberto P. Saglia, Sandesh K. Kulkarni, Sirio Belli, Stella Seitz, Stijn Wuyts, Thorsten Naab","submitted_at":"2016-03-03T15:48:43Z","abstract_excerpt":"We present measurements of the [NII]/Ha ratio as a probe of gas-phase oxygen abundance for a sample of 419 star-forming galaxies at z=0.6-2.7 from the KMOS3D near-IR multi-IFU survey. The mass-metallicity relation (MZR) is determined consistently with the same sample selection, metallicity tracer, and methodology over the wide redshift range probed by the survey. We find good agreement with long-slit surveys in the literature, except for the low-mass slope of the relation at z~2.3, where this sample is less biased than previous samples based on optical spectroscopic redshifts. In this regime w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.01139","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":"1603.01139","created_at":"2026-05-18T01:08:42.502723+00:00"},{"alias_kind":"arxiv_version","alias_value":"1603.01139v1","created_at":"2026-05-18T01:08:42.502723+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.01139","created_at":"2026-05-18T01:08:42.502723+00:00"},{"alias_kind":"pith_short_12","alias_value":"3CCEYPYPRBQM","created_at":"2026-05-18T12:29:55.572404+00:00"},{"alias_kind":"pith_short_16","alias_value":"3CCEYPYPRBQMWBH3","created_at":"2026-05-18T12:29:55.572404+00:00"},{"alias_kind":"pith_short_8","alias_value":"3CCEYPYP","created_at":"2026-05-18T12:29:55.572404+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/3CCEYPYPRBQMWBH3B754TQRS55","json":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55.json","graph_json":"https://pith.science/api/pith-number/3CCEYPYPRBQMWBH3B754TQRS55/graph.json","events_json":"https://pith.science/api/pith-number/3CCEYPYPRBQMWBH3B754TQRS55/events.json","paper":"https://pith.science/paper/3CCEYPYP"},"agent_actions":{"view_html":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55","download_json":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55.json","view_paper":"https://pith.science/paper/3CCEYPYP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1603.01139&json=true","fetch_graph":"https://pith.science/api/pith-number/3CCEYPYPRBQMWBH3B754TQRS55/graph.json","fetch_events":"https://pith.science/api/pith-number/3CCEYPYPRBQMWBH3B754TQRS55/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55/action/storage_attestation","attest_author":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55/action/author_attestation","sign_citation":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55/action/citation_signature","submit_replication":"https://pith.science/pith/3CCEYPYPRBQMWBH3B754TQRS55/action/replication_record"}},"created_at":"2026-05-18T01:08:42.502723+00:00","updated_at":"2026-05-18T01:08:42.502723+00:00"}