{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:6K5SIARZNG4DZWDWTOBK6KQ4NT","short_pith_number":"pith:6K5SIARZ","schema_version":"1.0","canonical_sha256":"f2bb24023969b83cd8769b82af2a1c6ccccbd1f2240dbc7ff9eceb7a2d02c5c6","source":{"kind":"arxiv","id":"0811.2793","version":1},"attestation_state":"computed","paper":{"title":"Resolving the discrepancy between lensing and X-ray mass estimates of the complex galaxy cluster Abell 1689","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Laboratoire d'Astrophysique de Toulouse-Tarbes, (3) University of Oslo), Copenhagen, Danka Paraficz (1), Desiree Della Monica Ferreira (1), Haakon Dahle (3) ((1) Dark Cosmology Centre, Kristian Pedersen (1), Marceau Limousin (1, Signe Riemer-Sorensen (1)","submitted_at":"2008-11-18T10:39:24Z","abstract_excerpt":"There is a long-standing discrepancy between galaxy cluster masses determined from X-ray and gravitational lensing observations of which Abell 1689 is a well-studied example. In this work we take advantage of 180 ks of Chandra X-ray observations and a new weak gravitational study based on a Hubble Space Telescope mosaic covering the central 1.8 Mpc x 1.4 Mpc to eliminate the mass discrepancy. In contrast to earlier X-ray analyses where the very circular surface brightness has been inferred as Abell 1689 being spherically symmetric and in hydrostatic equilibrium, a hardness ratio map analysis r"},"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":"0811.2793","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-18T10:39:24Z","cross_cats_sorted":[],"title_canon_sha256":"82b0b4c2837c6ed449d912b4cde2ec2e58126fec48192db886a15da96f520dd5","abstract_canon_sha256":"043d95db84df0028bf4ace211527b66a28918d51c2966b7396f4b26d23254b80"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:25.013149Z","signature_b64":"9/jisto0rWOTfWwI7vGBKzibkZfasU70PX4Dia2Zk2SDcseLfF+S+GJSUT7WyNev4HhcN3j5lD7aMKmzg4nVAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2bb24023969b83cd8769b82af2a1c6ccccbd1f2240dbc7ff9eceb7a2d02c5c6","last_reissued_at":"2026-05-18T04:29:25.012471Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:25.012471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Resolving the discrepancy between lensing and X-ray mass estimates of the complex galaxy cluster Abell 1689","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Laboratoire d'Astrophysique de Toulouse-Tarbes, (3) University of Oslo), Copenhagen, Danka Paraficz (1), Desiree Della Monica Ferreira (1), Haakon Dahle (3) ((1) Dark Cosmology Centre, Kristian Pedersen (1), Marceau Limousin (1, Signe Riemer-Sorensen (1)","submitted_at":"2008-11-18T10:39:24Z","abstract_excerpt":"There is a long-standing discrepancy between galaxy cluster masses determined from X-ray and gravitational lensing observations of which Abell 1689 is a well-studied example. In this work we take advantage of 180 ks of Chandra X-ray observations and a new weak gravitational study based on a Hubble Space Telescope mosaic covering the central 1.8 Mpc x 1.4 Mpc to eliminate the mass discrepancy. In contrast to earlier X-ray analyses where the very circular surface brightness has been inferred as Abell 1689 being spherically symmetric and in hydrostatic equilibrium, a hardness ratio map analysis r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.2793","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":"0811.2793","created_at":"2026-05-18T04:29:25.012574+00:00"},{"alias_kind":"arxiv_version","alias_value":"0811.2793v1","created_at":"2026-05-18T04:29:25.012574+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.2793","created_at":"2026-05-18T04:29:25.012574+00:00"},{"alias_kind":"pith_short_12","alias_value":"6K5SIARZNG4D","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_16","alias_value":"6K5SIARZNG4DZWDW","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_8","alias_value":"6K5SIARZ","created_at":"2026-05-18T12:25:56.245647+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/6K5SIARZNG4DZWDWTOBK6KQ4NT","json":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT.json","graph_json":"https://pith.science/api/pith-number/6K5SIARZNG4DZWDWTOBK6KQ4NT/graph.json","events_json":"https://pith.science/api/pith-number/6K5SIARZNG4DZWDWTOBK6KQ4NT/events.json","paper":"https://pith.science/paper/6K5SIARZ"},"agent_actions":{"view_html":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT","download_json":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT.json","view_paper":"https://pith.science/paper/6K5SIARZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0811.2793&json=true","fetch_graph":"https://pith.science/api/pith-number/6K5SIARZNG4DZWDWTOBK6KQ4NT/graph.json","fetch_events":"https://pith.science/api/pith-number/6K5SIARZNG4DZWDWTOBK6KQ4NT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT/action/storage_attestation","attest_author":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT/action/author_attestation","sign_citation":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT/action/citation_signature","submit_replication":"https://pith.science/pith/6K5SIARZNG4DZWDWTOBK6KQ4NT/action/replication_record"}},"created_at":"2026-05-18T04:29:25.012574+00:00","updated_at":"2026-05-18T04:29:25.012574+00:00"}