{"paper":{"title":"Precursor Activity Preceding Interacting Supernovae I: Bridging the Gap with SN 2022mop","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Aryan, A. Gangopadhyay, A. Gkini, A. J. Drake, A. Jerkstrand, A. Rest, A. Singh, B.F.A. van Baal, B. Rusholme, C.-C. Lin, C. Fransson, E. A. Magnier, F. J. Masci, G. Pignata, H. F. Stevance, H. Gao, I. A. Smith, J. J. Eldridge, J. Johansson, J. Purdum, J. Sollerman, J. W. Tweddle, K. C. Chambers, K. K. Das, K. W. Smith, M. E. Huber, M. Fraser, M. J. Graham, M. Nicholl, M. W. Coughlin, N. Sarin, R. Hirai, R.J. Wainscoat, R. Smith, S. Anand, S. Barmentloo, S. J. Brennan, S. J. Smartt, S. Schulze, S. Srivastav, T. B. Lowe, T. de Boer, T.-W. Chen, W. V. Jacobson-Gal\\'an","submitted_at":"2025-03-11T18:00:00Z","abstract_excerpt":"Over the past two decades, an increasing number of transients have shown luminous activity at their explosion sites weeks to years before an interacting supernova (SN) is observed. For some objects, this pre-SN activity is typically linked to large-scale mass-loss events preceding core collapse, yet its triggering mechanism and the underlying explosion process remain uncertain. We present SN 2022mop, which was initially observed in August 2022, exhibiting nebular emission, including [O I], Mg I], and [Ca II], resembling the late-time (~200 days post-explosion) spectrum of a stripped-envelope S"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.08768","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/2503.08768/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"}