{"paper":{"title":"Nearby supernova host galaxies from the CALIFA Survey: II. SN environmental metallicity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. M. Mour\\~ao, C. Badenes, C. J. Walcher, C. Kehrig, D. Mast, E. P\\'erez, G. van de Ven, H. Flores, J. M. V\\'ilchez, L. Galbany, M. Lyubenova, M. Moll\\'a, M. Rodrigues, R. A. Marino, R. Garc\\'ia-Benito, R. M. Gonz\\'alez Delgado, S. F. S\\'anchez, S. Meidt, V. Stanishev","submitted_at":"2016-03-25T02:45:17Z","abstract_excerpt":"The metallicity of a supernova (SN) progenitor, together with its mass, is one of the main parameters that rules their outcome. We present a metallicity study of 115 nearby SN host galaxies (0.005<z<0.03) which hosted 142 SNe using Integral Field Spectroscopy (IFS) from the CALIFA survey. Using O3N2 we found no statistically significant differences between the gas-phase metallicities at the locations of the three main SN types (Ia, Ib/c and II) all having ~8.50$\\pm$0.02 dex. The total galaxy metallicities are also very similar and we argue that this is because our sample consists only of SNe d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.07808","kind":"arxiv","version":2},"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"}