{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:MN2F4NUFAYZSSUUH5SF6KG7HEN","short_pith_number":"pith:MN2F4NUF","schema_version":"1.0","canonical_sha256":"63745e36850633295287ec8be51be7236740602f734a49f72fe386fa200db02e","source":{"kind":"arxiv","id":"0906.4168","version":2},"attestation_state":"computed","paper":{"title":"Boundary Shear Acceleration in the Jet of MKN501","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"S. Sahayanathan","submitted_at":"2009-06-23T06:09:28Z","abstract_excerpt":"The high resolution image of the jet of the BL Lac object MKN501 in radio, show a limb-brightened feature. An explanation of this feature as an outcome of differential Doppler boosting of jet spine and jet boundary due to transverse velocity structure of the jet requires large viewing angle. However this inference contradicts with the constraints derived from the high energy $\\gamma$-ray studies unless the jets bends over a large angle immediately after the $\\gamma$-ray zone (close to the central engine). In this letter we propose an alternate explanation to the limb-brightened feature of MKN5"},"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":"0906.4168","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-06-23T06:09:28Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"60174aa4dcd9345d88046537bedd06a83d86ccb9ad55ce58057c6ea8710e3e27","abstract_canon_sha256":"a28c5c9276fa173c1930d626c5c3b93f57cfd7bef5027ae1cd88198486a1c307"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:13.245387Z","signature_b64":"fTYgQ6FU/vjub+Wkdo6LOpp/jOSsm2EVhPq6hXK0TAtbKcKH90oWT/ciqp8q0pGXJFY19NNIISc2pHH2zJ2mBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63745e36850633295287ec8be51be7236740602f734a49f72fe386fa200db02e","last_reissued_at":"2026-05-18T02:13:13.244956Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:13.244956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Boundary Shear Acceleration in the Jet of MKN501","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"S. Sahayanathan","submitted_at":"2009-06-23T06:09:28Z","abstract_excerpt":"The high resolution image of the jet of the BL Lac object MKN501 in radio, show a limb-brightened feature. An explanation of this feature as an outcome of differential Doppler boosting of jet spine and jet boundary due to transverse velocity structure of the jet requires large viewing angle. However this inference contradicts with the constraints derived from the high energy $\\gamma$-ray studies unless the jets bends over a large angle immediately after the $\\gamma$-ray zone (close to the central engine). In this letter we propose an alternate explanation to the limb-brightened feature of MKN5"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.4168","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":"0906.4168","created_at":"2026-05-18T02:13:13.245017+00:00"},{"alias_kind":"arxiv_version","alias_value":"0906.4168v2","created_at":"2026-05-18T02:13:13.245017+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.4168","created_at":"2026-05-18T02:13:13.245017+00:00"},{"alias_kind":"pith_short_12","alias_value":"MN2F4NUFAYZS","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"MN2F4NUFAYZSSUUH","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"MN2F4NUF","created_at":"2026-05-18T12:26:00.592388+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/MN2F4NUFAYZSSUUH5SF6KG7HEN","json":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN.json","graph_json":"https://pith.science/api/pith-number/MN2F4NUFAYZSSUUH5SF6KG7HEN/graph.json","events_json":"https://pith.science/api/pith-number/MN2F4NUFAYZSSUUH5SF6KG7HEN/events.json","paper":"https://pith.science/paper/MN2F4NUF"},"agent_actions":{"view_html":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN","download_json":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN.json","view_paper":"https://pith.science/paper/MN2F4NUF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0906.4168&json=true","fetch_graph":"https://pith.science/api/pith-number/MN2F4NUFAYZSSUUH5SF6KG7HEN/graph.json","fetch_events":"https://pith.science/api/pith-number/MN2F4NUFAYZSSUUH5SF6KG7HEN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN/action/storage_attestation","attest_author":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN/action/author_attestation","sign_citation":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN/action/citation_signature","submit_replication":"https://pith.science/pith/MN2F4NUFAYZSSUUH5SF6KG7HEN/action/replication_record"}},"created_at":"2026-05-18T02:13:13.245017+00:00","updated_at":"2026-05-18T02:13:13.245017+00:00"}