{"paper":{"title":"Wild behaviour near the finish line: the Type Ibn SN 2020able and its stratified environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Gangopadhyay, A. Pastorello, A. Reguitti, B. Ailawadhi, B. Kumar, C. McCully, C. Pellegrino, C. P. Guti\\'errez, D. A. Howell, D. Hiramatsu, Dimple, D. J. Sand, E. Cappellaro, E. Padilla Gonzalez, G. Valerin, J. Andrews, J. Burke, J. Pearson, K. Misra, L. Tartaglia, L. Tomasella, M. Newsome, M. Singh, N. Elias-Rosa, N. Smith, P. Lundqvist, P. Ochner, R. Dastidar, S. Benetti, S. Wyatt, V. K. Jha, Y.-Z. Cai","submitted_at":"2026-08-07T18:00:01Z","abstract_excerpt":"We present spectrophotometric observations of the Type Ibn supernova SN~2020able, along with a comprehensive analysis and modelling of its evolution. The transient occurred in SDSS J092602.93+243115.1, a faint host galaxy characterised by significantly sub-solar metallicity ($12+\\log(\\rm{O/H})\\simeq8.28\\,\\rm{dex}$). The early photometric evolution and high peak luminosity ($L_{peak}\\simeq4.4\\times10^{43}\\,\\rm{erg}\\,\\rm{s^{-1}}$) indicate an efficient conversion of ejecta kinetic energy into radiation via interaction with the circumstellar medium. Light-curve modelling suggests that this intera"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.07661","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/2608.07661/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"}