{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:UDJ7BE3RJSMXLFKQGAUDMFR4BP","short_pith_number":"pith:UDJ7BE3R","schema_version":"1.0","canonical_sha256":"a0d3f093714c99759550302836163c0bd557f1acafbf4a548ed27ad87562d0b0","source":{"kind":"arxiv","id":"2409.12028","version":1},"attestation_state":"computed","paper":{"title":"The Faraday rotation measure of the M87 jet at 3.5mm with the Atacama Large Millimeter/submillimeter Array","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Ciriaco Goddi, Feng Yuan, Ivan Marti-Vidal, Jae-Young Kim, Liang Chen, Masanori Nakamura, Ruo-Yu Liu, Ru-Sen Lu, Sijia Peng, Thomas P. Krichbaum, Zhiqiang Shen, Zhiyuan Li","submitted_at":"2024-09-18T14:37:53Z","abstract_excerpt":"Faraday rotation is an important probe of the magnetic fields and magnetized plasma around active galactic nuclei (AGN) jets. We present a Faraday rotation measure image of the M87 jet between 85.2 GHz and 101.3 GHz with a resolution of ~2\" with the Atacama Large Millimeter/submillimeter Array (ALMA). We found that the rotation measure (RM) of the M87 core is $\\rm (4.5\\pm 0.4)\\times10^{4}\\ rad\\ m^{-2}$ with a low linear polarization fraction of $\\rm (0.88\\pm 0.08)\\%$. The spatial RM gradient in the M87 jet spans a wide range from $\\sim -2\\times10^4\\rm~rad\\ m^{-2}$ to $\\sim 3\\times10^4\\rm~rad\\ "},"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":"2409.12028","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-09-18T14:37:53Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"92099191b329655bf31f11117ba4ff63a0f500287ce89c9951fe86487918b495","abstract_canon_sha256":"ce7d0090c3d2cc57d03d567682f9a39ab2e8cdee9928636e657cc98e44e76890"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:08:41.362256Z","signature_b64":"v3kxAlj5Yp5jBoqplWKzmLv4k5Q9tCkl24KFfU6i2Zde+LXfEmgMLkfNtWdBjBiPUuS68cek22efczsqPnKPCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0d3f093714c99759550302836163c0bd557f1acafbf4a548ed27ad87562d0b0","last_reissued_at":"2026-07-05T09:08:41.361744Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:08:41.361744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Faraday rotation measure of the M87 jet at 3.5mm with the Atacama Large Millimeter/submillimeter Array","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Ciriaco Goddi, Feng Yuan, Ivan Marti-Vidal, Jae-Young Kim, Liang Chen, Masanori Nakamura, Ruo-Yu Liu, Ru-Sen Lu, Sijia Peng, Thomas P. Krichbaum, Zhiqiang Shen, Zhiyuan Li","submitted_at":"2024-09-18T14:37:53Z","abstract_excerpt":"Faraday rotation is an important probe of the magnetic fields and magnetized plasma around active galactic nuclei (AGN) jets. We present a Faraday rotation measure image of the M87 jet between 85.2 GHz and 101.3 GHz with a resolution of ~2\" with the Atacama Large Millimeter/submillimeter Array (ALMA). We found that the rotation measure (RM) of the M87 core is $\\rm (4.5\\pm 0.4)\\times10^{4}\\ rad\\ m^{-2}$ with a low linear polarization fraction of $\\rm (0.88\\pm 0.08)\\%$. The spatial RM gradient in the M87 jet spans a wide range from $\\sim -2\\times10^4\\rm~rad\\ m^{-2}$ to $\\sim 3\\times10^4\\rm~rad\\ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.12028","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/2409.12028/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":"2409.12028","created_at":"2026-07-05T09:08:41.361807+00:00"},{"alias_kind":"arxiv_version","alias_value":"2409.12028v1","created_at":"2026-07-05T09:08:41.361807+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.12028","created_at":"2026-07-05T09:08:41.361807+00:00"},{"alias_kind":"pith_short_12","alias_value":"UDJ7BE3RJSMX","created_at":"2026-07-05T09:08:41.361807+00:00"},{"alias_kind":"pith_short_16","alias_value":"UDJ7BE3RJSMXLFKQ","created_at":"2026-07-05T09:08:41.361807+00:00"},{"alias_kind":"pith_short_8","alias_value":"UDJ7BE3R","created_at":"2026-07-05T09:08:41.361807+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/UDJ7BE3RJSMXLFKQGAUDMFR4BP","json":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP.json","graph_json":"https://pith.science/api/pith-number/UDJ7BE3RJSMXLFKQGAUDMFR4BP/graph.json","events_json":"https://pith.science/api/pith-number/UDJ7BE3RJSMXLFKQGAUDMFR4BP/events.json","paper":"https://pith.science/paper/UDJ7BE3R"},"agent_actions":{"view_html":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP","download_json":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP.json","view_paper":"https://pith.science/paper/UDJ7BE3R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2409.12028&json=true","fetch_graph":"https://pith.science/api/pith-number/UDJ7BE3RJSMXLFKQGAUDMFR4BP/graph.json","fetch_events":"https://pith.science/api/pith-number/UDJ7BE3RJSMXLFKQGAUDMFR4BP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP/action/storage_attestation","attest_author":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP/action/author_attestation","sign_citation":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP/action/citation_signature","submit_replication":"https://pith.science/pith/UDJ7BE3RJSMXLFKQGAUDMFR4BP/action/replication_record"}},"created_at":"2026-07-05T09:08:41.361807+00:00","updated_at":"2026-07-05T09:08:41.361807+00:00"}