{"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"}