{"paper":{"title":"Infant-phase reddening by surface Fe-peak elements in a normal Type Ia Supernova","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Abigail Polin, Anthony L. Piro, Avishay Gal-Yam, Christopher D. Matzner, Curtis McCully, Dae-Sik Moon, Daichi Hiramatsu, D. Andrew Howell, Daniel E. Reichart, David J. Sand, Giuliano Pignata, Griffin Hosseinzadeh, Hong Soo Park, Iair Arcavi, Jamison Burke, Jeffrey Rich, Jennifer E. Andrews, John Antoniadis, Joshua Haislip, K. Azalee Bostroem, Lluis Galbany, Maria R. Drout, Nathan Smith, Nidia Morrell, Niloufar Afsariardchi, Peter E. Nugent, Peter J. Brown, Rachael L. Beaton, Raymond G. Carlberg, Samuel Wyatt, Sang Chul Kim, Sang-Mok Cha, Santiago Gonzalez-Gaitan, S. Bradley Cenko, Sean D. Johnson, Sheng Yang, Stefano Valenti, Stuart D. Ryder, Thomas W.-S. Holoien, Vladimir Kouprianov, Yize Dong, Yongseok Lee, Youngdae Lee, Yuan Qi Ni","submitted_at":"2022-02-17T20:18:24Z","abstract_excerpt":"Type Ia Supernovae are thermonuclear explosions of white dwarf stars. They play a central role in the chemical evolution of the Universe and are an important measure of cosmological distances. However, outstanding questions remain about their origins. Despite extensive efforts to obtain natal information from their earliest signals, observations have thus far failed to identify how the majority of them explode. Here, we present infant-phase detections of SN 2018aoz from a brightness of -10.5 absolute AB magnitudes -- the lowest luminosity early Type Ia signals ever detected -- revealing a hith"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.08889","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/2202.08889/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"}