[vsnet-grb-info 28238] GRB 210626A: Swift/XRT afterglow confirmation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  30341
SUBJECT: GRB 210626A: Swift/XRT afterglow confirmation
DATE:    21/06/28 19:07:34 GMT
FROM:    Antonino D'Ai at IASF-PA  <antonino.dai at inaf.it>

Antonino D'Aì (INAF-IASFPA) & Aaron Tohuvavohu (Uni. Toronto) 
report on behalf of the Swift-XRT team:

Swift-XRT has performed further follow-up observations of the
Fermi/GBM (von Kienlin GCN 30340) and Swift/BAT-GUANO detected burst 
GRB 210626A (Tohuvavohu et al., GCN Circ. 30325), collecting 7.9 ks 
of Photon Counting (PC) mode data between T0+29.7 ks and T0+143 ks.

The X-ray source detected in the first 1.4 ks of data as possible 
GRB afterglow candidate  (Perri et al. GCN 30329)  has faded more 
than 3 sigma in the  latest observation, and it is thus confirmed as the 
X-ray afterglow of the burst.

The results of the full analysis of the XRT observations are available
at https://www.swift.ac.uk/xrt_curves/00021453/.

This circular is an official product of the Swift-XRT team.