{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:JVCUVQPPHVJC6GEP7ATYDY277X","short_pith_number":"pith:JVCUVQPP","schema_version":"1.0","canonical_sha256":"4d454ac1ef3d522f188ff82781e35ffdcd3edd8bc9dd7f0d9aedd7040d815836","source":{"kind":"arxiv","id":"1809.01757","version":1},"attestation_state":"computed","paper":{"title":"Coronal properties of Swift/BAT-selected Seyfert 1 AGN observed with NuSTAR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Anne Lohfink, Fiona Harrison, Mislav Balokovi\\'c, Murray Brightman, Nikita Kamraj","submitted_at":"2018-09-05T22:51:26Z","abstract_excerpt":"The NuSTAR observatory, with its high sensitivity in hard X-rays, has enabled detailed broadband modeling of the X-ray spectra of Active Galactic Nuclei (AGN), thereby allowing constraints to be placed on the high-energy cutoff of the X-ray coronal continuum. We investigate the spectral properties of a sample of 46 NuSTAR-observed Seyfert 1 AGN selected from the Swift/BAT 70-month hard X-ray survey. Our measurements of the high-energy cutoff of the continuum from modeling the NuSTAR X-ray spectra are used to map out the temperature - compactness ($\\theta-l$) plane for AGN coronae. We find that"},"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":"1809.01757","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-09-05T22:51:26Z","cross_cats_sorted":[],"title_canon_sha256":"82f66bbfa19df9c66ab9f2be417c18b1257936cda6784386c12ec3b1f9b411bb","abstract_canon_sha256":"13b5697c034ddb88e1e22e9013cdbc642c695f76dbfba3fed49bb9995c15157f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:50.500838Z","signature_b64":"D5fwfc8T2NZAX45IuJnozYFTi8dhsRkFqL6QeXz04jUYNhnghQF9kl7WwANvhQBDJnOZGnzMqlMQV07Z/nfeAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4d454ac1ef3d522f188ff82781e35ffdcd3edd8bc9dd7f0d9aedd7040d815836","last_reissued_at":"2026-05-18T00:00:50.500217Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:50.500217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coronal properties of Swift/BAT-selected Seyfert 1 AGN observed with NuSTAR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Anne Lohfink, Fiona Harrison, Mislav Balokovi\\'c, Murray Brightman, Nikita Kamraj","submitted_at":"2018-09-05T22:51:26Z","abstract_excerpt":"The NuSTAR observatory, with its high sensitivity in hard X-rays, has enabled detailed broadband modeling of the X-ray spectra of Active Galactic Nuclei (AGN), thereby allowing constraints to be placed on the high-energy cutoff of the X-ray coronal continuum. We investigate the spectral properties of a sample of 46 NuSTAR-observed Seyfert 1 AGN selected from the Swift/BAT 70-month hard X-ray survey. Our measurements of the high-energy cutoff of the continuum from modeling the NuSTAR X-ray spectra are used to map out the temperature - compactness ($\\theta-l$) plane for AGN coronae. We find that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01757","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":"1809.01757","created_at":"2026-05-18T00:00:50.500307+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.01757v1","created_at":"2026-05-18T00:00:50.500307+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01757","created_at":"2026-05-18T00:00:50.500307+00:00"},{"alias_kind":"pith_short_12","alias_value":"JVCUVQPPHVJC","created_at":"2026-05-18T12:32:31.084164+00:00"},{"alias_kind":"pith_short_16","alias_value":"JVCUVQPPHVJC6GEP","created_at":"2026-05-18T12:32:31.084164+00:00"},{"alias_kind":"pith_short_8","alias_value":"JVCUVQPP","created_at":"2026-05-18T12:32:31.084164+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.17993","citing_title":"Nuclear Activity and Host Galaxy Properties of Low-Luminosity AGN Identified from VLA Observations","ref_index":10,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X","json":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X.json","graph_json":"https://pith.science/api/pith-number/JVCUVQPPHVJC6GEP7ATYDY277X/graph.json","events_json":"https://pith.science/api/pith-number/JVCUVQPPHVJC6GEP7ATYDY277X/events.json","paper":"https://pith.science/paper/JVCUVQPP"},"agent_actions":{"view_html":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X","download_json":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X.json","view_paper":"https://pith.science/paper/JVCUVQPP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.01757&json=true","fetch_graph":"https://pith.science/api/pith-number/JVCUVQPPHVJC6GEP7ATYDY277X/graph.json","fetch_events":"https://pith.science/api/pith-number/JVCUVQPPHVJC6GEP7ATYDY277X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X/action/storage_attestation","attest_author":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X/action/author_attestation","sign_citation":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X/action/citation_signature","submit_replication":"https://pith.science/pith/JVCUVQPPHVJC6GEP7ATYDY277X/action/replication_record"}},"created_at":"2026-05-18T00:00:50.500307+00:00","updated_at":"2026-05-18T00:00:50.500307+00:00"}