{"paper":{"title":"CSS161010: a luminous, fast blue optical transient with broad blueshifted hydrogen lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aleksandra Hamanowicz, Andrea Pastorello, Anjasha Gangopadhyay, Auni Somero, Bing Zhang, Christopher Kochanek, Claudia P. Guti\\'errez, David A. H. Buckley, David Bersier, Deanne Coppejans, Encarni Romero-Colmenero, Erkki Kankare, Giacomo Terreran, Jack Neustadt, Jirong Mao, Jose L. Prieto, Juna Kollmeier, Kuntal Misra, Luc Dessart, Lukasz Wyrzykowski, Mariusz Gromadzki, Maximilian D. Stritzinger, Morgan Fraser, Mridweeka Singh, Nancy Elias-Rosa, Panos Charalampopoulos, Peter G. Jonker, Peter Lundqvist, Petri Vaisanen, Ping Chen, Raya Dastidar, Rubina Kotak, Santiago Gonz\\'alez-Gait\\'an, Seppo Mattila, Stefano Benetti, Stephen B. Potter, Subhash Bose, Subo Dong, Thomas Reynolds, Thomas Wevers, Tuomas Kangas","submitted_at":"2024-08-08T18:00:04Z","abstract_excerpt":"We present ultraviolet, optical and near-infrared photometric and optical spectroscopic observations of the luminous, fast blue optical transient (LFBOT), CSS161010:045834-081803 (CSS161010). The transient was found in a low-redshift (z=0.033) dwarf galaxy. The light curves of CSS161010 are characterized by an extremely fast evolution and blue colours. The V-band light curve shows that CSS161010 reaches an absolute peak of M$_{V}^{max}=-20.66\\pm0.06$ mag in 3.8 days from the start of the outburst. After maximum, CSS161010 follows a power-law decline $\\propto t^{-2.8\\pm0.1}$ in all optical band"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.04698","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/2408.04698/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"}