GCN Circular 8319
Subject
GRB 081003A: Swift-XRT Team position and analysis
Date
2008-10-03T23:31:33Z (16 years ago)
From
Kim Page at U.of Leicester <kpa@star.le.ac.uk>
K.L. Page, A.P. Beardmore (U. Leicester) and H.A. Krimm (CRESST/GSFC/USRA)
report on behalf of the Swift-XRT team:
Swift began observing the field of the INTEGRAL GRB 081003A (Mereghetti et
al., GCN Circ. 8314) 7.6 ks after the trigger. In 1.8 ks of Photon
Counting mode data, we detect a single source within the INTEGRAL error
circle at a position of RA, Dec = 262.39082, 16.57103, which is equivalent
to
RA(J2000): 17 29 33.80
Dec(J2000): +16 34 15.70
with an uncertainty of 3.9 arcsec (radius, 90% containment). The source
has a count rate of ~0.026 during this observation.
The spectrum of the source can be fitted by an absorbed power-law, with
Gamma = 3.6 +1.6/-1.2 and NH = (7 +6/-4)x10^21 cm^-2, compared to the
Galctic value of 6.67x10^20 cm^-2. It is not possible to determine whether
this source is fading given the current statistics.
This circular is an official product of the Swift-XRT team.