{"paper":{"title":"A Tale of Two Type Ia Supernovae: The fast-declining siblings SNe 2015bo and 1997cn","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"B. J. Shappee, C. Ashall, C. R. Burns, D. R. Young, E. Baron, E. Y. Hsiao, F. Taddia, J. D. Lyman, J. Lu, L. Galbany, M. Delgado Mancheno, M. D. Stritzinger, M. M. Phillips, N. B. Suntzeff, N. Morrell, P. A. Mazzali, R. Gonzalez Diaz, S. Benetti, S. Holmbo, S. Munoz Torres, W. B. Hoogendam","submitted_at":"2021-09-29T18:05:10Z","abstract_excerpt":"We present optical and near-infrared photometric and spectroscopic observations of the fast-declining Type Ia Supernova (SN) 2015bo. SN 2015bo is under-luminous (M$_B$ = -17.67 $\\pm$ 0.15 mag) and has a fast-evolving light curve ($\\Delta \\mathrm{m}_{15}\\mathrm{(B)}$ = 1.91 $\\pm$ 0.01 mag and $s_{BV}$ = 0.48 $\\pm$ 0.01). It has a unique morphology in the $V-r$ color curve, where it is bluer than all other SNe in the comparison sample. A $^{56}$Ni mass of 0.17 $\\pm$ 0.03 $M_{\\odot}$ was derived from the peak bolometric luminosity, which is consistent with its location on the luminosity-width rel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.14644","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2109.14644/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"}