TITLE: GCN CIRCULAR NUMBER: 40549 SUBJECT: EP J1350.0-8622: BOOTES-6/DPRT optical upper limit DATE: 25/05/26 21:51:45 GMT FROM: I. Perez-Garcia at Institute of Astrophysics of Andalusia <ipg@iaa.es> I. Perez-Garcia, E. Fernandez-Garcia, M.D. Caballero-Garcia, R. Sanchez-Ramirez, S. Guziy, S.-Y. Wu, G. Garcia-Segura and A. J. Castro-Tirado (IAA-CSIC, Granada), P. J. Meintjes and H. J. van Heerden (UFS, South Africa), A. Martin-Carrillo and L. Hanlon (UCD, Ireland), M. Gritsevich (Univ. of Helsinki) and C. J. Perez del Pulgar (UMA, Malaga), on behalf of a larger collaboration, report: Following the detection of X-ray transient candidate EP J1350.0-8622 by Einstein Probe (Liu et al., GCNC [40548](https://gcn.nasa.gov/circulars/40548)), the BOOTES-6/DPRT 0.6m robotic telescope at Boyden Observatory in Maselspoort (South Africa) responded to this event starting on May 26, 16:59 UT (~ 17.7 h after trigger). No new source is detected in the WXT region up to magnitude 20.3 using the clear filter and Gaia DR3 Gmag magnitude as reference. We thank the staff at Boyden Observatory for their excellent support. View this GCN Circular online at https://gcn.nasa.gov/circulars/40549. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...