TITLE: GCN CIRCULAR NUMBER: 38935 SUBJECT: GRB 250113A: INTEGRAL/SPI-ACS detection DATE: 25/01/14 10:52:56 GMT FROM: Aishwarya L Thakur at INAF-IAPS, Rome aishth@outlook.com
Patrizia Barria(a,b), Giulia Gianfagna(a), James Craig Rodi(a), Aishwarya Linesh Thakur(a), Luigi Piro(a), Lorenzo Natalucci(a,b) report:
GRB 250113A was discovered by SVOM/GRM (GCN 38923) at time 2025-01-13T06:24:36.900 (UTC) with a duration of 42 s. We searched for any corresponding counterpart in the INTEGRAL/SPI-ACS data.
In a light curve above 80 keV, we find a pulse temporally coincident with the GRM detection having an approximate duration of ~ 3 sec.
The approximate peak count rate is 73000 cts/s over a median background rate of 62500 cts/s.
This work is based on observations with INTEGRAL, an ESA project with instruments and a science data centre funded by ESA member states (especially the PI countries: Denmark, France, Germany, Italy, Switzerland, and Spain), and with the participation of Russia and the USA. The SPI-ACS detector system has been provided by MPE Garching/Germany.
----- (a) INAF/IAPS-Rome (b) ICSC National Research Centre for High-Performance Computing
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