GCN Circular 10899
Subject
GRB 100628A: Swift XRT detection of a possible X-ray afterglow
Date
2010-06-28T20:24:02Z (14 years ago)
From
Rhaana Starling at U of Leicester <rlcs1@star.le.ac.uk>
R.L.C. Starling (U. Leicester) and S. Immler (CRESST/GSFC/UMD) report on
behalf of the Swift-XRT team:
We have analysed 8.7 ks of XRT data for GRB 100628A (Immler et al. GCN
Circ. 10895), from 93 s to 18.8 ks after the BAT trigger. The data are
entirely in Photon Counting (PC) mode. A source is detected at the 3-sigma
confidence level within the BAT refined error circle (Barthelmy et al. GCN
Circ. 10896) at the position:
RA (J2000) = 15 03 52.95
Dec (J2000) = -31 39 41.7
with an error of 5.2 arcsec (radius, 90% containment). This is 91.8 arcsec
from the BAT refined position.
The possible source has a count rate of 0.0023+/-0.0007 count/s. We cannot
determine whether the source is fading at this time.
This circular is an official product of the Swift-XRT team.