{"paper":{"title":"SN 2021gno: a Calcium-rich transient with double-peaked light curves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Kozyreva, A. L. Piro, A. P\\'al, A. Polin, A. V. Payne, B. Barna, B. Englert, B. J. Shappee, C. Ashall, C. Burns, C. P. Guti\\'errez, D. B\\'anhidi, D. R. Young, E. Baron, E. Hsiao, E. Paraskeva, G. Folatelli, H. Kuncarayakti, I. B. B\\'ir\\'o, I. Cs\\'anyi, J. Lu, J. M. DerKacy, J. P. Anderson, J. T. Hinkle, J. Vink\\'o, K. Ertini, K. Vida, L. Ferrari, L. Galbany, L. Harvey, L. Kriskovits, L. Martinez, M. C. Bersten, M. Gromadzki, M. M. Phillips, M. Nicholl, M. Orellana, M. Shahbandeh, M. Stritzinger, M. Tucker, N. B. Suntzeff, N. Elias-Rosa, N. Morrell, P. J. Brown, P. J. Pessi, P. Mazzali, P. Sz\\'ekely, R. K\\\"onyves-T\\'oth, R. Szak\\'ats, S. Bose, S. Kumar, T. E. M\\\"uller-Bravo, T. Szalai, T. -W. Chen, Zs. Szab\\'o","submitted_at":"2023-09-14T15:41:34Z","abstract_excerpt":"We present extensive ultraviolet (UV) and optical photometric and optical spectroscopic follow-up of supernova (SN)~2021gno by the \"Precision Observations of Infant Supernova Explosions\" (POISE) project, starting less than two days after the explosion. Given its intermediate luminosity, fast photometric evolution, and quick transition to the nebular phase with spectra dominated by [Ca~II] lines, SN~2021gno belongs to the small family of Calcium-rich transients. Moreover, it shows double-peaked light curves, a phenomenon shared with only four other Calcium-rich events. The projected distance fr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.07800","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/2309.07800/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"}