GCN Circular 41603

I. Perez-Garcia, S.-Y. Wu, E. Fernandez-Garcia, M.D. Caballero-Garcia, R. Sanchez-Ramirez, S. Guziy 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 EP-WXT trigger 01709200994 (Ni et al. GCNC 41599), the BOOTES-6/DPRT 0.6m robotic telescope at Boyden Observatory in Maselspoort (South Africa) responded to the alert on Aug 29, 21:51 UT (i.e. 54 min after detection and 2 min after notification). Within the reported EP-FXT error circle we find the star LP 524-48 decreasing in brightness from 14.2 to 14.6 mag in clear filter (using Gaia DR3 Gmag magnitude as reference) during a 1 hour time interval, confirming this event as due to a stellar flare, as already suggested by the EP team.

We thank the staff at Boyden Observatory for their excellent support.