LIGO/Virgo S200311bg: Not observable by CALET
Abstract
At the trigger time of the compact binary merger candidate S200311bg, T0 = 2020-03-11 11:58:53.398 UT (The LIGO Scientific Collaboration and Virgo Collaboration, GCN Circ. 27358), the CALET Gamma-ray Burst Monitor (CGBM) high voltages were off (from T0-3 min to T0+15 min). The CALET Calorimeter (CAL) was operating in the high energy trigger mode at the trigger time of S200311bg. Using the CAL data, we have searched for gamma-ray events in the 10-100 GeV band from -60 sec to +60 sec from the GW trigger time and found no candidates. There was no significant overlap with the LVC high probability localization region at T0+-60 sec. The CAL FOV was centered at RA = 191.3 deg, Dec = +51.5 deg at T0.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- March 2020
- Bibcode:
- 2020GCN.27372....1T