{"paper":{"title":"The Atacama Cosmology Telescope: Flux Upper Limits from a Targeted Search for Extragalactic Transients","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Adam D. Hincks, Anna Y. Q. Ho Kevin M. Huffenberger, Bruce Partridge, Carlos Herv\\'ias-Caimapo, Cristian Vargas, Crist\\'obal Sif\\'on, Edward J. Wollack, Erminia Calabrese, Eve M. Vavagiakis, Jo Dunkley, John Orlowski-Scherer, Lyman A. Page, Maria Salatino, Mark J. Devlin, Mathew S. Madhavacheril, Matt Hilton, Michael D. Niemack, Patricio A. Gallardo, Roberto Puddu, Rolando D\\\"unner, Sigurd Naess, Suzanne T. Staggs, Xiaoyi Ma","submitted_at":"2023-01-18T16:54:40Z","abstract_excerpt":"We have performed targeted searches of known extragalactic transient events at millimetre wavelengths using nine seasons (2013--2021) of 98, 150, and 229\\,GHz Atacama Cosmology Telescope (ACT) observations that mapped ${\\sim}40$ per cent of the sky for most of the data volume. Our data cover 88 gamma-ray bursts (GRBs), 12 tidal disruption events (TDEs) and 203 other transients, including supernovae (SNe). We stack our ACT observations to increase the signal-to-noise ratio of the maps. In all cases but one, we do not detect these transients in the ACT data. The single candidate detection (event"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.07651","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/2301.07651/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"}