{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:COIYKG73JL3AMXSCKZZFEMWY4E","short_pith_number":"pith:COIYKG73","schema_version":"1.0","canonical_sha256":"1391851bfb4af6065e4256725232d8e1316f44e2bfa73bb9f80796392b4e9be2","source":{"kind":"arxiv","id":"1407.1047","version":2},"attestation_state":"computed","paper":{"title":"A relationship between specific star formation rate and metallicity gradient within z=1 galaxies from KMOS-HiZELS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. M. Swinbank (Durham), David Sobral (Lisbon, Ian Smail (Durham), James E. Geach (Herts), John P. Stott (Durham), Jorryt Matthee (Leiden), Leiden), Philip N. Best (Edinburgh), Ray M. Sharples (Durham), Richard Bower (Durham)","submitted_at":"2014-07-03T20:00:06Z","abstract_excerpt":"We have observed a sample of typical z=1 star forming galaxies, selected from the HiZELS survey, with the new KMOS near-infrared, multi-IFU instrument on the VLT, in order to obtain their dynamics and metallicity gradients. The majority of our galaxies have a metallicity gradient consistent with being flat or negative (i.e. higher metallicity cores than outskirts). Intriguingly, we find a trend between metallicity gradient and specific star formation rate (sSFR), such that galaxies with a high sSFR tend to have relatively metal-poor centres, a result which is strengthened when combined with da"},"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":"1407.1047","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-07-03T20:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"ecbf049f805d44c508c3c2dd779301b4c91702e4b2f52a1bd4df76571164ce6c","abstract_canon_sha256":"1fe034bc39a0eb473aeec10b7d91c3a84455f0cf54465f1f43b6cb045c758b43"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:42.162038Z","signature_b64":"qEUAmrThXqJ6+Nnos2udeTpOw92+BkMyOtERqDv7Mpi8O/X64cXry37n5Rln3W40NxayVD5CuTho4rYGkFc0Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1391851bfb4af6065e4256725232d8e1316f44e2bfa73bb9f80796392b4e9be2","last_reissued_at":"2026-05-18T01:42:42.161344Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:42.161344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A relationship between specific star formation rate and metallicity gradient within z=1 galaxies from KMOS-HiZELS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. M. Swinbank (Durham), David Sobral (Lisbon, Ian Smail (Durham), James E. Geach (Herts), John P. Stott (Durham), Jorryt Matthee (Leiden), Leiden), Philip N. Best (Edinburgh), Ray M. Sharples (Durham), Richard Bower (Durham)","submitted_at":"2014-07-03T20:00:06Z","abstract_excerpt":"We have observed a sample of typical z=1 star forming galaxies, selected from the HiZELS survey, with the new KMOS near-infrared, multi-IFU instrument on the VLT, in order to obtain their dynamics and metallicity gradients. The majority of our galaxies have a metallicity gradient consistent with being flat or negative (i.e. higher metallicity cores than outskirts). Intriguingly, we find a trend between metallicity gradient and specific star formation rate (sSFR), such that galaxies with a high sSFR tend to have relatively metal-poor centres, a result which is strengthened when combined with da"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1047","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":""},"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":"1407.1047","created_at":"2026-05-18T01:42:42.161466+00:00"},{"alias_kind":"arxiv_version","alias_value":"1407.1047v2","created_at":"2026-05-18T01:42:42.161466+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1047","created_at":"2026-05-18T01:42:42.161466+00:00"},{"alias_kind":"pith_short_12","alias_value":"COIYKG73JL3A","created_at":"2026-05-18T12:28:22.404517+00:00"},{"alias_kind":"pith_short_16","alias_value":"COIYKG73JL3AMXSC","created_at":"2026-05-18T12:28:22.404517+00:00"},{"alias_kind":"pith_short_8","alias_value":"COIYKG73","created_at":"2026-05-18T12:28:22.404517+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/COIYKG73JL3AMXSCKZZFEMWY4E","json":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E.json","graph_json":"https://pith.science/api/pith-number/COIYKG73JL3AMXSCKZZFEMWY4E/graph.json","events_json":"https://pith.science/api/pith-number/COIYKG73JL3AMXSCKZZFEMWY4E/events.json","paper":"https://pith.science/paper/COIYKG73"},"agent_actions":{"view_html":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E","download_json":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E.json","view_paper":"https://pith.science/paper/COIYKG73","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1407.1047&json=true","fetch_graph":"https://pith.science/api/pith-number/COIYKG73JL3AMXSCKZZFEMWY4E/graph.json","fetch_events":"https://pith.science/api/pith-number/COIYKG73JL3AMXSCKZZFEMWY4E/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E/action/timestamp_anchor","attest_storage":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E/action/storage_attestation","attest_author":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E/action/author_attestation","sign_citation":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E/action/citation_signature","submit_replication":"https://pith.science/pith/COIYKG73JL3AMXSCKZZFEMWY4E/action/replication_record"}},"created_at":"2026-05-18T01:42:42.161466+00:00","updated_at":"2026-05-18T01:42:42.161466+00:00"}