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GCN Circular 23714

Subject
GRB 190114C: SPI-ACS/INTEGRAL extended emission detection
Date
2019-01-15T13:12:17Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
P. Minaev (IKI), A. Pozanenko (IKI) report:

We analyzed the publicly available SPI-ACS data (>~ 80 keV) of INTEGRAL 
observatory covering trigger time (UT) 20:57:02 of the GRB 190114C 
(Gropp et al. 2019, GCN 23688; Hamburg et al. 2019, GCN 23707).

We found statistically significant extended emission up to ~ 5000 sec 
after the trigger. The extended emission can be approximated by power 
law model with the index of 0.99 +/- 0.05.

We do not detect any significant emission from possible precursor on 
time scales 0.05 ��� 10 sec within (-500, 0) sec time interval before the 
trigger.

The SPI-ACS/INTEGRAL light curve can be found at:
http://grb.rssi.ru/GRB190114C/GRB190114C_SPI-ACS_LC.png
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