GCN Circular 13496
Subject
GRB 120716A: Swift-XRT detection
Event
Date
2012-07-19T19:15:34Z (14 years ago)
From
Valerio D'Elia at ASDC <delia@asdc.asi.it>
V. D'Elia (ASDC), J. Gelbord and J. Kennea (PSU) report on behalf of
the Swift-XRT team:
Swift began a target of opportunity observation of GRB120716A on July
19, 2012 at 14:22 UT, approximately 2.9 days after the discovery
(Hurley et al. GCN 13487). Swift data for these observations utilize
Target ID 20225.
Preliminary analysis of the 1.5 ks downlinked XRT data finds an
uncatalogued X-ray source at RA, Dec = 313.05050, 9.59850 which is
equivalent
to:
RA(J2000) = �20h 52m 12.12s
Dec(J2000)= +09d 35m 54.6s,
with an error radius of 3.4 arcsecs (position enhanced by UVOT field
astrometry).
The above position is consistent with the optical afterglow detection
reported by Cenko et al. (GCN 13489), Xu et al. (GCN 13490), Schady et
al. (GCN 13492). In addition, no known X-ray object is present at the
XRT coordinates, so this is likely the X-ray afterglow of GRB120716A.
The count rate of the XRT source is 8.32E-03+/-2.9E-03 cts/s. We
cannot determine at the present time whether the
source is fading.
This circular is an official product of the Swift-XRT team.
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