TITLE: GCN CIRCULAR NUMBER: 38338 SUBJECT: EP241126a: GSP detects optical counterpart DATE: 24/11/27 08:59:09 GMT FROM: Wenxiong Li liwenxiong1992@gmail.com
W. X. Li, S. J. Xue (NAOC), M. Andrews, J. Farah, D. A. Howell, M. Newsome, E. Padilla Gonzalez, C. McCully, and G. Terreran (Las Cumbres Observatory), on behalf of a larger collaboration, report: Following the detection of the fast X-ray transient EP241126a by the Einstein Probe (Hu et al., GCN 38335) with the Sinistro instrument mounted on the 1-m telescope of the LCO, we initiated observations of the fast X-ray transient location starting on 2024 November 27 at 5:03 UT (~9.5 hours after the EP/WXT trigger) in the r band. These observations were conducted using the 1-meter telescope at the Las Cumbres Observatory node located at Cerro Tololo Interamerican Observatory in Chile. The optical counterpart (Fu et al., GCN 38337) was detected in the co-added images with r = 22.2+-0.2. These observations were taken as part of the Global Supernova Project.
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