GCN Circular 7072
Subject
GRB 071112B: Swift-XRT preliminary analysis
Event
Date
2007-11-13T00:45:21Z (18 years ago)
From
Matteo Perri at ISAC/ASDC <perri@asdc.asi.it>
M. Perri, G. Stratta (ASDC), D.N. Burrows (PSU) report on behalf of the
Swift-XRT team:
The Swift-XRT began observing the field of the short hard GRB 071112B
(trigger=296503, Perri et al., GCN Circ. 7058) at 19:25:35 UT, about
62 minutes after the BAT trigger. In the first 2.1 ks of Photon Counting
mode data, no X-ray source is detected within the refined BAT error
circle (Fenimore et al., GCN Circ. 7071)
We estimate a 3-sigma upper limit on the count rate of ~5e-3 cts/s.
Assuming a power-law spectrum with photon index Gamma=2 and a Galactic
column density of 7.9e20 cm-2, this corresponds to an upper limit on the
observed flux of ~2e-13 ergs/cm2/s (0.3-10 keV)
This is an official product of the Swift XRT Team.