GCN Circular 35017
H. Nishikawa, S. Sugita, M. Serino, H. Hiramatsu, Y. Kondo (AGU), N. Kawai (RIKEN), H. Negoro, M. Nakajima (Nihon U.), T. Mihara (RIKEN), Y. Kawakubo (LSU) report on behalf of the MAXI team: We examined MAXI/GSC all-sky X-ray images (2-20 keV) after compact binary merger candidate S231113bw at 2023-11-13 20:04:17 UTC (GCN 35016). At the trigger time of S231113bw, the high-voltage of MAXI/GSC was off, and it was turned on at T0+285 sec (+4.8 min). The first one-orbit (92 min) scan observation with GSC after the event covered 53% of the 90% credible region of the bayestar skymap from 20:09:15 to 21:34:10 UTC (T0+298 to T0+5393 sec). No significant new source was found in the region in the one-orbit scan observation. A typical 1-sigma averaged upper limit obtained in one scan observation is 20 mCrab at 2-20 keV. If you require information about X-ray flux by MAXI/GSC at specific coordinates, please contact the submitter of this circular by email.