{"paper":{"title":"The local ultraviolet signature of Type Ia supernova environments from HST and MUSE","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Alaa Alburai, Albert Garc\\'ia Soto, Andrew J. Levan, Carles Badenes, Chris Ashall, Chris Burns, Claudia P. Guti\\'errez, Cullen Abelson, Danny Steeghs, \\`Elia Di\\'eguez Gurn\\'es, Eric Y. Hsiao, Hanindyo Kuncarayakti, Joseph P Anderson, Jospeh Lyman, Llu\\'is Galbany, Mark M. Phillips, Maximilian Stritzinger, Ramon Sanfeliu, Sebastian F. S\\'anchez, Yago Ascasibar","submitted_at":"2026-06-20T18:02:30Z","abstract_excerpt":"(Abridged.) The local environment of a Type Ia supernova (SN Ia) encodes information on progenitor age, star formation, dust, and chemical enrichment that may influence both its light-curve properties and its standardized luminosity. We assemble a homogeneous explosion-site dataset to test how near-ultraviolet (UV) imaging combined with optical integral-field spectroscopy improves the characterization of SN Ia environments and their connection to SN observables. We analyze 340 low-redshift SN Ia sites observed with HST/WFC3 F275W and matched VLT/MUSE spectroscopy. For each site we measure loca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22173","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.22173/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}