TITLE: GCN CIRCULAR NUMBER: 36806 SUBJECT: EP240702a: GSP optical upper limit DATE: 24/07/03 04:26:38 GMT FROM: Wenxiong Li liwenxiong1992@gmail.com
W. X. Li, S. J. Xue (NAOC), M. Andrews, J. Farrah, 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 EP240702a by the Einstein Probe (Chen et al., GCN 36801), we initiated observations of the fast X-ray transient location starting on July 2 at 6:10 UT (~5 hours after the trigger) in the r band. These observations were conducted using the 1-meter telescope at the Las Cumbres Observatory node located at Cerro Tololo Inter-American Observatory in Chile. No new optical source was detected in the co-added images within the EP/WXT error box down to ~21.5 mag. These observations were taken as part of the Global Supernova Project.
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