{
  "circularId": 35019,
  "submittedHow": "web",
  "submitter": "Motoko Serino at Aoyama Gakuin U. <serino@phys.aoyama.ac.jp>",
  "createdOn": 1699925452447,
  "eventId": "LIGO/Virgo/KAGRA S231113cd",
  "subject": "LIGO/Virgo/KAGRA S231113cd: Coverage and upper limits from MAXI/GSC observations",
  "body": "Y. Kondo, S. Sugita, M. Serino, H. Hiramatsu, H. Nishikawa (AGU),\nN. Kawai (RIKEN), H. Negoro, M. Nakajima (Nihon U.), \nT. Mihara (RIKEN), \nY. Kawakubo (LSU) \nreport on behalf of the MAXI team: \n\nWe examined MAXI/GSC all-sky X-ray images (2-20 keV) \nafter compact binary merger candidate S231113cd at 2023-11-13 22:12:17 UTC. \n\nAt the trigger time of S231113cd, the high-voltage of MAXI/GSC was off, \nand it was turned on at T0+105 sec (+1.8 min). \nThe first one-orbit (92 min) scan observation with GSC after the event covered 100% \nof the 90% credible region of the cwb skymap from 23:02:32 to 23:23:40 UTC (T0+3015 to T0+4283 sec). \n\nNo significant new source was found in the region in the one-orbit scan observation. \nA typical 1-sigma averaged upper limit obtained in one scan observation \nis 20 mCrab at 2-20 keV. \n\nIf you require information about X-ray flux by MAXI/GSC at specific coordinates, \nplease contact the submitter of this circular by email. ",
  "bibcode": "2023GCN.35019....1K"
}