{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:4QYDNDSMH4FU4KBUSIAYZCDDLD","short_pith_number":"pith:4QYDNDSM","schema_version":"1.0","canonical_sha256":"e430368e4c3f0b4e283492018c886358d1a1a86f5eb85a0c2a3a22a808de342a","source":{"kind":"arxiv","id":"1109.4634","version":1},"attestation_state":"computed","paper":{"title":"The stellar activity-rotation relationship and the evolution of stellar dynamos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Eric E. Mamajek, Gregory W. Henry, Jeremy J. Drake, Nicholas J. Wright","submitted_at":"2011-09-21T20:00:00Z","abstract_excerpt":"We present a sample of 824 solar and late-type stars with X-ray luminosities and rotation periods. This is used to study the relationship between rotation and stellar activity and derive a new estimate of the convective turnover time. From an unbiased subset of this sample the power law slope of the unsaturated regime, L_X / L_bol = Ro^\\beta, is fit as \\beta = -2.70 +/- 0.13. This is inconsistent with the canonical \\beta=-2 slope to a confidence of 5 sigma, and argues for an additional term in the dynamo number equation. From a simple scaling analysis this implies \\Delta\\Omega / \\Omega = \\Omeg"},"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":"1109.4634","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-21T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"39959fae1cb16ead93c15e302c88e7af96052bd2ab3260455be76d9168ad1c81","abstract_canon_sha256":"e9cb53b40d3d1c8dfd721c79b4938e7b4b54e222756775a6c4400ff8ae6d0f02"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:26.975114Z","signature_b64":"EQEySHQCxCRb6o0HaQFQHk2sAhSwzG8LfRcymHdVGmRgFzVglsM3su7uOUk6ISu9OP+UR/N9ZnWGQ2tLiNRdCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e430368e4c3f0b4e283492018c886358d1a1a86f5eb85a0c2a3a22a808de342a","last_reissued_at":"2026-05-18T02:00:26.974484Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:26.974484Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The stellar activity-rotation relationship and the evolution of stellar dynamos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Eric E. Mamajek, Gregory W. Henry, Jeremy J. Drake, Nicholas J. Wright","submitted_at":"2011-09-21T20:00:00Z","abstract_excerpt":"We present a sample of 824 solar and late-type stars with X-ray luminosities and rotation periods. This is used to study the relationship between rotation and stellar activity and derive a new estimate of the convective turnover time. From an unbiased subset of this sample the power law slope of the unsaturated regime, L_X / L_bol = Ro^\\beta, is fit as \\beta = -2.70 +/- 0.13. This is inconsistent with the canonical \\beta=-2 slope to a confidence of 5 sigma, and argues for an additional term in the dynamo number equation. From a simple scaling analysis this implies \\Delta\\Omega / \\Omega = \\Omeg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4634","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":"1109.4634","created_at":"2026-05-18T02:00:26.974589+00:00"},{"alias_kind":"arxiv_version","alias_value":"1109.4634v1","created_at":"2026-05-18T02:00:26.974589+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4634","created_at":"2026-05-18T02:00:26.974589+00:00"},{"alias_kind":"pith_short_12","alias_value":"4QYDNDSMH4FU","created_at":"2026-05-18T12:26:20.644004+00:00"},{"alias_kind":"pith_short_16","alias_value":"4QYDNDSMH4FU4KBU","created_at":"2026-05-18T12:26:20.644004+00:00"},{"alias_kind":"pith_short_8","alias_value":"4QYDNDSM","created_at":"2026-05-18T12:26:20.644004+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.23018","citing_title":"Gaia Exoplanet Orbits, Demographics, and Evolution Survey (GEODES): Characteristics of Three Long-Period Companions Accelerating their Host Stars","ref_index":158,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD","json":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD.json","graph_json":"https://pith.science/api/pith-number/4QYDNDSMH4FU4KBUSIAYZCDDLD/graph.json","events_json":"https://pith.science/api/pith-number/4QYDNDSMH4FU4KBUSIAYZCDDLD/events.json","paper":"https://pith.science/paper/4QYDNDSM"},"agent_actions":{"view_html":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD","download_json":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD.json","view_paper":"https://pith.science/paper/4QYDNDSM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1109.4634&json=true","fetch_graph":"https://pith.science/api/pith-number/4QYDNDSMH4FU4KBUSIAYZCDDLD/graph.json","fetch_events":"https://pith.science/api/pith-number/4QYDNDSMH4FU4KBUSIAYZCDDLD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD/action/storage_attestation","attest_author":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD/action/author_attestation","sign_citation":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD/action/citation_signature","submit_replication":"https://pith.science/pith/4QYDNDSMH4FU4KBUSIAYZCDDLD/action/replication_record"}},"created_at":"2026-05-18T02:00:26.974589+00:00","updated_at":"2026-05-18T02:00:26.974589+00:00"}