{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:GNMKC2YV2HNYO5BDXUNJB6A26N","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"dd8da09b93e8235533e3a9847153587eacfc69b0f9beb7cc7b1cbf749ec7a803","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-06T21:10:08Z","title_canon_sha256":"f99fa5c376eb85233493865b7cd1f07d3b6f04cbe6c4207331d48077b1eebdde"},"schema_version":"1.0","source":{"id":"0911.1357","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.1357","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"arxiv_version","alias_value":"0911.1357v1","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.1357","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"pith_short_12","alias_value":"GNMKC2YV2HNY","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"GNMKC2YV2HNYO5BD","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"GNMKC2YV","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:2686a1986d4185af417c4f686b1afde3e9e4e436334989a76b0f4d146f799510","target":"graph","created_at":"2026-05-18T02:10:58Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The equivalent width (EW) of the Lyman Alpha (Lya) line is directly related to the ratio of star formation rates determined from Lya flux and UV flux density [SFR(Lya)/SFR(UV)]. We use published data --in the literature EW and SFR(Lya)/SFR(UV) are treated as independent quantities-- to show that the predicted relation holds for the vast majority of observed Lya emitting galaxies (LAEs). We show that the relation between EW and SFR(Lya)/SFR(UV) applies irrespective of a galaxy's `true' underlying star formation rate, and that its only source of scatter is the variation in the spectral slope of ","authors_text":"Eduard Westra (1) ((1) CfA), Mark Dijkstra (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-06T21:10:08Z","title":"Star Formation Indicators and Line Equivalent Width in Lyman Alpha Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.1357","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:23f3d17b4f951b832ce2ed390671da7eb4d73ff0e306e52dc5ccc355911909e4","target":"record","created_at":"2026-05-18T02:10:58Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"dd8da09b93e8235533e3a9847153587eacfc69b0f9beb7cc7b1cbf749ec7a803","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-06T21:10:08Z","title_canon_sha256":"f99fa5c376eb85233493865b7cd1f07d3b6f04cbe6c4207331d48077b1eebdde"},"schema_version":"1.0","source":{"id":"0911.1357","kind":"arxiv","version":1}},"canonical_sha256":"3358a16b15d1db877423bd1a90f81af3573478dddc27b56263f30126adc5556b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3358a16b15d1db877423bd1a90f81af3573478dddc27b56263f30126adc5556b","first_computed_at":"2026-05-18T02:10:58.548721Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:58.548721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y2ii0JtPShhwAD7s20NpY9tP6tyuYBzwZcJHBayZw+vVqSuA3fidJdV7p2bFJ9I8Etia9f+XsnB+4FcK6au1CA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:58.549546Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.1357","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23f3d17b4f951b832ce2ed390671da7eb4d73ff0e306e52dc5ccc355911909e4","sha256:2686a1986d4185af417c4f686b1afde3e9e4e436334989a76b0f4d146f799510"],"state_sha256":"8c9ef186adf60c180a54c557ab402967a55fc3bb7096351a432a3da0e43f251c"}