{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:QWLA5B2C6SS3ZIKW36Y6NYA4DB","short_pith_number":"pith:QWLA5B2C","schema_version":"1.0","canonical_sha256":"85960e8742f4a5bca156dfb1e6e01c184b6bd10b2a3e71dfa8c91b9c7fa672c8","source":{"kind":"arxiv","id":"1110.5875","version":2},"attestation_state":"computed","paper":{"title":"X-Ray surface brightness and gas density fluctuations in the Coma cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Schekochihin, A. Vikhlinin, E. Churazov, H. Boehringer, I. Parrish, I. Zhuravleva, R. Sunyaev, S. Randall, W. Forman","submitted_at":"2011-10-26T18:58:10Z","abstract_excerpt":"X-ray surface brightness fluctuations in the core ($650 \\times 650$ kpc) region of the Coma cluster observed with XMM-Newton and Chandra are analyzed using a 2D power spectrum approach. The resulting 2D spectra are converted to 3D power spectra of gas density fluctuations. Our independent analyses of the XMM-Newton and Chandra observations are in excellent agreement and provide the most sensitive measurements of surface brightness and density fluctuations for a hot cluster. We find that the characteristic amplitude of the volume filling density fluctuations relative to the smooth underlying de"},"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":"1110.5875","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-10-26T18:58:10Z","cross_cats_sorted":[],"title_canon_sha256":"0387d7160db685c832dead90d2f24529f8f86c53bb564c8fbe68b903a543a032","abstract_canon_sha256":"2929159cb55f86e245e5fd14634ef67e34597937e53b22409c85151d91a2b7a2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:03.493041Z","signature_b64":"SycDmnYMDBR5m1bqwdlRGDqZkTTHjex6nnHDUOTyy1jt9hmuNEEvkk4BdDDHnJI6FHOa483nBbD0btyLrY5TBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85960e8742f4a5bca156dfb1e6e01c184b6bd10b2a3e71dfa8c91b9c7fa672c8","last_reissued_at":"2026-05-18T02:00:03.492680Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:03.492680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"X-Ray surface brightness and gas density fluctuations in the Coma cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Schekochihin, A. Vikhlinin, E. Churazov, H. Boehringer, I. Parrish, I. Zhuravleva, R. Sunyaev, S. Randall, W. Forman","submitted_at":"2011-10-26T18:58:10Z","abstract_excerpt":"X-ray surface brightness fluctuations in the core ($650 \\times 650$ kpc) region of the Coma cluster observed with XMM-Newton and Chandra are analyzed using a 2D power spectrum approach. The resulting 2D spectra are converted to 3D power spectra of gas density fluctuations. Our independent analyses of the XMM-Newton and Chandra observations are in excellent agreement and provide the most sensitive measurements of surface brightness and density fluctuations for a hot cluster. We find that the characteristic amplitude of the volume filling density fluctuations relative to the smooth underlying de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.5875","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":"1110.5875","created_at":"2026-05-18T02:00:03.492738+00:00"},{"alias_kind":"arxiv_version","alias_value":"1110.5875v2","created_at":"2026-05-18T02:00:03.492738+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.5875","created_at":"2026-05-18T02:00:03.492738+00:00"},{"alias_kind":"pith_short_12","alias_value":"QWLA5B2C6SS3","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_16","alias_value":"QWLA5B2C6SS3ZIKW","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_8","alias_value":"QWLA5B2C","created_at":"2026-05-18T12:26:39.201973+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/QWLA5B2C6SS3ZIKW36Y6NYA4DB","json":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB.json","graph_json":"https://pith.science/api/pith-number/QWLA5B2C6SS3ZIKW36Y6NYA4DB/graph.json","events_json":"https://pith.science/api/pith-number/QWLA5B2C6SS3ZIKW36Y6NYA4DB/events.json","paper":"https://pith.science/paper/QWLA5B2C"},"agent_actions":{"view_html":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB","download_json":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB.json","view_paper":"https://pith.science/paper/QWLA5B2C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1110.5875&json=true","fetch_graph":"https://pith.science/api/pith-number/QWLA5B2C6SS3ZIKW36Y6NYA4DB/graph.json","fetch_events":"https://pith.science/api/pith-number/QWLA5B2C6SS3ZIKW36Y6NYA4DB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB/action/storage_attestation","attest_author":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB/action/author_attestation","sign_citation":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB/action/citation_signature","submit_replication":"https://pith.science/pith/QWLA5B2C6SS3ZIKW36Y6NYA4DB/action/replication_record"}},"created_at":"2026-05-18T02:00:03.492738+00:00","updated_at":"2026-05-18T02:00:03.492738+00:00"}