GCN Circular 38898
Subject
GRB 250108A: Swift/XRT afterglow fading
Date
2025-01-10T17:28:08Z (9 days ago)
From
Tullia Sbarrato at INAF-OAB <tullia.sbarrato@inaf.it>
Via
Web form
Tullia Sbarrato (INAF-OAB) & Noel Klinger (GSFC/UMBC/CRESSTII)
report on behalf of the Swift-XRT team:
Swift-XRT has performed further follow-up observations of the
SVOM/ECLAIRs GRB 250108A (Zheng et al., GCN 38845),
collecting 6.6 ks of Photon Counting (PC) mode data between
T0+16.1 ks and T0+192.1 ks.
The X-ray source detected in the first 2.7 ks of data reported as
“Source 1” and presented as possible GRB afterglow candidate
(Ambrosi et al., GCN 38853) has faded more than 2 sigma
in the latest observation, and it is thus confirmed as the
X-ray afterglow of the burst.
The results of the XRT-team automatic analysis are available at
http://www.swift.ac.uk/xrt_products/00021755.
This circular is an official product of the Swift-XRT team.