{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:3Y2KIAFWVMG7D6MCVBHQ4GMBM3","short_pith_number":"pith:3Y2KIAFW","schema_version":"1.0","canonical_sha256":"de34a400b6ab0df1f982a84f0e198166e41be40d5481327a0273c7e7eca90b96","source":{"kind":"arxiv","id":"astro-ph/0405622","version":1},"attestation_state":"computed","paper":{"title":"Extended X-ray emission at high redshifts: radio galaxies versus clusters","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Celotti (SISSA), A.C. Fabian (IoA)","submitted_at":"2004-05-31T12:31:54Z","abstract_excerpt":"Most old distant radio galaxies should be extended X-ray sources due to inverse Compton scattering of Cosmic Microwave Background (CMB) photons. Such sources can be an important component in X-ray surveys for high redshift clusters, due to the increase with redshift of both the CMB energy density and the radio source number density. We estimate a lower limit to the space density of such sources and show that inverse Compton scattered emission may dominate above redshifts of one and X-ray luminosities of 10^44 erg/s, with a space density of radio galaxies > 10^-8 Mpc^-3. The X-ray sources may l"},"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":"astro-ph/0405622","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-05-31T12:31:54Z","cross_cats_sorted":[],"title_canon_sha256":"0846cf87dcebea0ef069c5f88f59ee96f5f8d09917edf5041b5dbfb3a739ab6b","abstract_canon_sha256":"ec8e2981ea5a0d7947609a57be8d327ed4143341a1acfd0f1ac9ef70b7d6dc41"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:32.479717Z","signature_b64":"9U6ybhaOXX0P4jcaHkir0E5qf0MAY47UeY6jmvAieOpvyZjVjIAQ9j8IQuG4DuCMNqRoLW6KfGpqEgpLmuXDBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de34a400b6ab0df1f982a84f0e198166e41be40d5481327a0273c7e7eca90b96","last_reissued_at":"2026-05-18T01:07:32.479059Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:32.479059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Extended X-ray emission at high redshifts: radio galaxies versus clusters","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Celotti (SISSA), A.C. Fabian (IoA)","submitted_at":"2004-05-31T12:31:54Z","abstract_excerpt":"Most old distant radio galaxies should be extended X-ray sources due to inverse Compton scattering of Cosmic Microwave Background (CMB) photons. Such sources can be an important component in X-ray surveys for high redshift clusters, due to the increase with redshift of both the CMB energy density and the radio source number density. We estimate a lower limit to the space density of such sources and show that inverse Compton scattered emission may dominate above redshifts of one and X-ray luminosities of 10^44 erg/s, with a space density of radio galaxies > 10^-8 Mpc^-3. The X-ray sources may l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0405622","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":"astro-ph/0405622","created_at":"2026-05-18T01:07:32.479166+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0405622v1","created_at":"2026-05-18T01:07:32.479166+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0405622","created_at":"2026-05-18T01:07:32.479166+00:00"},{"alias_kind":"pith_short_12","alias_value":"3Y2KIAFWVMG7","created_at":"2026-05-18T12:25:52.051335+00:00"},{"alias_kind":"pith_short_16","alias_value":"3Y2KIAFWVMG7D6MC","created_at":"2026-05-18T12:25:52.051335+00:00"},{"alias_kind":"pith_short_8","alias_value":"3Y2KIAFW","created_at":"2026-05-18T12:25:52.051335+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/3Y2KIAFWVMG7D6MCVBHQ4GMBM3","json":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3.json","graph_json":"https://pith.science/api/pith-number/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/graph.json","events_json":"https://pith.science/api/pith-number/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/events.json","paper":"https://pith.science/paper/3Y2KIAFW"},"agent_actions":{"view_html":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3","download_json":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3.json","view_paper":"https://pith.science/paper/3Y2KIAFW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0405622&json=true","fetch_graph":"https://pith.science/api/pith-number/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/graph.json","fetch_events":"https://pith.science/api/pith-number/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/action/storage_attestation","attest_author":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/action/author_attestation","sign_citation":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/action/citation_signature","submit_replication":"https://pith.science/pith/3Y2KIAFWVMG7D6MCVBHQ4GMBM3/action/replication_record"}},"created_at":"2026-05-18T01:07:32.479166+00:00","updated_at":"2026-05-18T01:07:32.479166+00:00"}