LIGO/Virgo S191222n: Coverage and upper limits from MAXI/GSC observations
Abstract
We examined MAXI/GSC all-sky X-ray images (2-20 keV) after the LVC trigger S191222n at 2019-12-22 03:35:37.119 UTC (GCN 26543). At the trigger time of S191222n, the high-voltage of MAXI/GSC was on. The instantaneous field of view of GSC at the GW trigger time covered 1% of the 90% credible region of the bayestar sky map, in which we found no significant new X-ray source. The first one-orbit (92 min) scan observation with GSC after the event covered 84% of the 90% credible region of the bayestar skymap from 03:35:37 to 04:37:24 UTC (T0+0 to T0+3707 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.
- Publication:
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GRB Coordinates Network
- Pub Date:
- December 2019
- Bibcode:
- 2019GCN.26546....1K