{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:NAUT2GT52HN6XWF64ANN6ZJWNU","short_pith_number":"pith:NAUT2GT5","schema_version":"1.0","canonical_sha256":"68293d1a7dd1dbebd8bee01adf65366d2cc5f352f760330296fd5435bb93e723","source":{"kind":"arxiv","id":"1006.2136","version":1},"attestation_state":"computed","paper":{"title":"Host galaxies of luminous quasars: population synthesis of optical off-axis spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. I. Sheinis, E. J. Hooper, I. Wold, M. J. Wolf","submitted_at":"2010-06-10T20:00:08Z","abstract_excerpt":"There is increasing evidence of a connection between AGN activity and galaxy evolution. To obtain further insight into this potentially important evolutionary phase, we analyse the properties of quasar host galaxies. In this paper, we present a population synthesis modeling technique for off-axis spectra, the results of which constrain host colour and the stellar ages of luminous quasars (M_V(nuc)<-23). Our technique is similar to well established quiescent-galaxy models, modified to accommodate scattered nuclear light (a combination of atmospheric, instrumental and host galaxy scattered light"},"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":"1006.2136","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-10T20:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"715bfc458ea82e3faad0d9dcd9293be781c91f344ac9271e7b4b565059d5c373","abstract_canon_sha256":"99750733e2ab4f6fa40feb8f413364d19dd898ea902c5c1379b9f1afeab301cb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:54.988919Z","signature_b64":"u0diY23ti9nU0zyQmA0a+UzdmBomCQL0E0UhMhzm+so2cc6DCMpzMx8IYDPTsgKvr9MTHxk+05mYG35dxx+DAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"68293d1a7dd1dbebd8bee01adf65366d2cc5f352f760330296fd5435bb93e723","last_reissued_at":"2026-05-18T02:06:54.988136Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:54.988136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Host galaxies of luminous quasars: population synthesis of optical off-axis spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. I. Sheinis, E. J. Hooper, I. Wold, M. J. Wolf","submitted_at":"2010-06-10T20:00:08Z","abstract_excerpt":"There is increasing evidence of a connection between AGN activity and galaxy evolution. To obtain further insight into this potentially important evolutionary phase, we analyse the properties of quasar host galaxies. In this paper, we present a population synthesis modeling technique for off-axis spectra, the results of which constrain host colour and the stellar ages of luminous quasars (M_V(nuc)<-23). Our technique is similar to well established quiescent-galaxy models, modified to accommodate scattered nuclear light (a combination of atmospheric, instrumental and host galaxy scattered light"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.2136","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":"1006.2136","created_at":"2026-05-18T02:06:54.988244+00:00"},{"alias_kind":"arxiv_version","alias_value":"1006.2136v1","created_at":"2026-05-18T02:06:54.988244+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.2136","created_at":"2026-05-18T02:06:54.988244+00:00"},{"alias_kind":"pith_short_12","alias_value":"NAUT2GT52HN6","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_16","alias_value":"NAUT2GT52HN6XWF6","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_8","alias_value":"NAUT2GT5","created_at":"2026-05-18T12:26:10.704358+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/NAUT2GT52HN6XWF64ANN6ZJWNU","json":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU.json","graph_json":"https://pith.science/api/pith-number/NAUT2GT52HN6XWF64ANN6ZJWNU/graph.json","events_json":"https://pith.science/api/pith-number/NAUT2GT52HN6XWF64ANN6ZJWNU/events.json","paper":"https://pith.science/paper/NAUT2GT5"},"agent_actions":{"view_html":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU","download_json":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU.json","view_paper":"https://pith.science/paper/NAUT2GT5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1006.2136&json=true","fetch_graph":"https://pith.science/api/pith-number/NAUT2GT52HN6XWF64ANN6ZJWNU/graph.json","fetch_events":"https://pith.science/api/pith-number/NAUT2GT52HN6XWF64ANN6ZJWNU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU/action/storage_attestation","attest_author":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU/action/author_attestation","sign_citation":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU/action/citation_signature","submit_replication":"https://pith.science/pith/NAUT2GT52HN6XWF64ANN6ZJWNU/action/replication_record"}},"created_at":"2026-05-18T02:06:54.988244+00:00","updated_at":"2026-05-18T02:06:54.988244+00:00"}