{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:XEUB74GWMETHQTAEB37FYJT64P","short_pith_number":"pith:XEUB74GW","schema_version":"1.0","canonical_sha256":"b9281ff0d66126784c040efe5c267ee3fb58ef9dcd0ddfd0a143ea60c668ca93","source":{"kind":"arxiv","id":"astro-ph/0206249","version":1},"attestation_state":"computed","paper":{"title":"High Resolution Soft X-ray Spectroscopy of M87 with the Reflection Grating Spectrometers on XMM-Newton","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. Ferrigno, D.M. Worrall, E. Belsole, F.B.S. Paerels, G. Branduardi-Raymont, H. Boehringer, I. Sakelliou, J. Kennea, J.R. Peterson, J.S. Kaastra, J.W. den Herder, R.F. Mushotzky, T. Tamura, W.T. Vestrand","submitted_at":"2002-06-14T17:15:32Z","abstract_excerpt":"We present high-resolution X-ray spectroscopic observations of M87 with the Reflection Grating Spectrometers on XMM-Newton. We detect strong K-shell line emission from N, O, Ne, Mg, some emission from He-like Si, a fully resolved set of Fe L-shell emission spectra, and some emission from C. The angular intensity distributions of the strong emission lines are detectably resolved on scales (15-160) arcsec. The gas in the inner arcmin of M87 has a multi-phase structure, as indicated by the similarity of the emission line profiles of Fe L shell ions with widely separated ionization potentials. The"},"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/0206249","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-14T17:15:32Z","cross_cats_sorted":[],"title_canon_sha256":"9d349c836187e3acb167e6177394ec3a6319885ff1572044572016454db92d47","abstract_canon_sha256":"35d204c64fa12e39a8161515b59a0216d1c73b7c13c9a431fc0426efcdafcdf4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:30:12.701899Z","signature_b64":"2rriAPWq+vlQMymdJbCUhpaf/lwQAlDAdpoIgqeHXEyrPKOu/8O4XQtP2epJnpyXDQyr4T55bA/t0VX/0S/uAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9281ff0d66126784c040efe5c267ee3fb58ef9dcd0ddfd0a143ea60c668ca93","last_reissued_at":"2026-07-04T16:30:12.701510Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:30:12.701510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High Resolution Soft X-ray Spectroscopy of M87 with the Reflection Grating Spectrometers on XMM-Newton","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. Ferrigno, D.M. Worrall, E. Belsole, F.B.S. Paerels, G. Branduardi-Raymont, H. Boehringer, I. Sakelliou, J. Kennea, J.R. Peterson, J.S. Kaastra, J.W. den Herder, R.F. Mushotzky, T. Tamura, W.T. Vestrand","submitted_at":"2002-06-14T17:15:32Z","abstract_excerpt":"We present high-resolution X-ray spectroscopic observations of M87 with the Reflection Grating Spectrometers on XMM-Newton. We detect strong K-shell line emission from N, O, Ne, Mg, some emission from He-like Si, a fully resolved set of Fe L-shell emission spectra, and some emission from C. The angular intensity distributions of the strong emission lines are detectably resolved on scales (15-160) arcsec. The gas in the inner arcmin of M87 has a multi-phase structure, as indicated by the similarity of the emission line profiles of Fe L shell ions with widely separated ionization potentials. The"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206249","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0206249/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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/0206249","created_at":"2026-07-04T16:30:12.701560+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0206249v1","created_at":"2026-07-04T16:30:12.701560+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0206249","created_at":"2026-07-04T16:30:12.701560+00:00"},{"alias_kind":"pith_short_12","alias_value":"XEUB74GWMETH","created_at":"2026-07-04T16:30:12.701560+00:00"},{"alias_kind":"pith_short_16","alias_value":"XEUB74GWMETHQTAE","created_at":"2026-07-04T16:30:12.701560+00:00"},{"alias_kind":"pith_short_8","alias_value":"XEUB74GW","created_at":"2026-07-04T16:30:12.701560+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/XEUB74GWMETHQTAEB37FYJT64P","json":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P.json","graph_json":"https://pith.science/api/pith-number/XEUB74GWMETHQTAEB37FYJT64P/graph.json","events_json":"https://pith.science/api/pith-number/XEUB74GWMETHQTAEB37FYJT64P/events.json","paper":"https://pith.science/paper/XEUB74GW"},"agent_actions":{"view_html":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P","download_json":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P.json","view_paper":"https://pith.science/paper/XEUB74GW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0206249&json=true","fetch_graph":"https://pith.science/api/pith-number/XEUB74GWMETHQTAEB37FYJT64P/graph.json","fetch_events":"https://pith.science/api/pith-number/XEUB74GWMETHQTAEB37FYJT64P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P/action/storage_attestation","attest_author":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P/action/author_attestation","sign_citation":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P/action/citation_signature","submit_replication":"https://pith.science/pith/XEUB74GWMETHQTAEB37FYJT64P/action/replication_record"}},"created_at":"2026-07-04T16:30:12.701560+00:00","updated_at":"2026-07-04T16:30:12.701560+00:00"}