{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1998:PCLAV3T4YUJENBJOPDRT6L3SFO","short_pith_number":"pith:PCLAV3T4","schema_version":"1.0","canonical_sha256":"78960aee7cc51246852e78e33f2f722b9c0da4119ceae47e6a5bd965e0a9f165","source":{"kind":"arxiv","id":"astro-ph/9807323","version":1},"attestation_state":"computed","paper":{"title":"Towards a Unified Model for the `Diffuse Ionized Medium' in Normal and Starburst Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Jing Wang, Matthew D. Lehnert, Timothy M. Heckman","submitted_at":"1998-07-30T18:55:20Z","abstract_excerpt":"We analyze H$\\alpha$ images and long-slit spectra of samples of normal and starburst galaxies to better understand the nature of the diffuse, low-surface-brightness gas in these galaxies. We find that in both samples there is a strong inverse correlation between the H$\\alpha$ surface-brightness ($\\Sigma_{H\\alpha}$) and the [SII]/H$\\alpha$ line ratio at a given location in the galaxy. However, the correlation for the starbursts is offset brightward by an order-of-magnitude in H$\\alpha$ surface-brightness at a given line ratio. In contrast, we find that all the galaxies (starburst and normal ali"},"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/9807323","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-30T18:55:20Z","cross_cats_sorted":[],"title_canon_sha256":"46ad3dab58f24564fd105b139f22f4ce971afa9c7a075944c825d9e197d50036","abstract_canon_sha256":"02eed883b558dc7acc0218a9a96f0bd98360b2332271eee59515a50f5ef360b8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:37.174280Z","signature_b64":"ZD3flJ/YX30fTad3tsP3U32rw272CygDdR6Du6L7C6dmxq3Bcbh3iYNxrCrtK5yaJdbtCDyFXKFcVhLfxngxCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78960aee7cc51246852e78e33f2f722b9c0da4119ceae47e6a5bd965e0a9f165","last_reissued_at":"2026-05-18T01:07:37.173873Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:37.173873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Towards a Unified Model for the `Diffuse Ionized Medium' in Normal and Starburst Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Jing Wang, Matthew D. Lehnert, Timothy M. Heckman","submitted_at":"1998-07-30T18:55:20Z","abstract_excerpt":"We analyze H$\\alpha$ images and long-slit spectra of samples of normal and starburst galaxies to better understand the nature of the diffuse, low-surface-brightness gas in these galaxies. We find that in both samples there is a strong inverse correlation between the H$\\alpha$ surface-brightness ($\\Sigma_{H\\alpha}$) and the [SII]/H$\\alpha$ line ratio at a given location in the galaxy. However, the correlation for the starbursts is offset brightward by an order-of-magnitude in H$\\alpha$ surface-brightness at a given line ratio. In contrast, we find that all the galaxies (starburst and normal ali"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9807323","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":"astro-ph/9807323","created_at":"2026-05-18T01:07:37.173931+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9807323v1","created_at":"2026-05-18T01:07:37.173931+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9807323","created_at":"2026-05-18T01:07:37.173931+00:00"},{"alias_kind":"pith_short_12","alias_value":"PCLAV3T4YUJE","created_at":"2026-05-18T12:25:49.038998+00:00"},{"alias_kind":"pith_short_16","alias_value":"PCLAV3T4YUJENBJO","created_at":"2026-05-18T12:25:49.038998+00:00"},{"alias_kind":"pith_short_8","alias_value":"PCLAV3T4","created_at":"2026-05-18T12:25:49.038998+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/PCLAV3T4YUJENBJOPDRT6L3SFO","json":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO.json","graph_json":"https://pith.science/api/pith-number/PCLAV3T4YUJENBJOPDRT6L3SFO/graph.json","events_json":"https://pith.science/api/pith-number/PCLAV3T4YUJENBJOPDRT6L3SFO/events.json","paper":"https://pith.science/paper/PCLAV3T4"},"agent_actions":{"view_html":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO","download_json":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO.json","view_paper":"https://pith.science/paper/PCLAV3T4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9807323&json=true","fetch_graph":"https://pith.science/api/pith-number/PCLAV3T4YUJENBJOPDRT6L3SFO/graph.json","fetch_events":"https://pith.science/api/pith-number/PCLAV3T4YUJENBJOPDRT6L3SFO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO/action/storage_attestation","attest_author":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO/action/author_attestation","sign_citation":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO/action/citation_signature","submit_replication":"https://pith.science/pith/PCLAV3T4YUJENBJOPDRT6L3SFO/action/replication_record"}},"created_at":"2026-05-18T01:07:37.173931+00:00","updated_at":"2026-05-18T01:07:37.173931+00:00"}