GCN Circular 6066
Subject
GRB 070129: Swift/UVOT Upper limits
Date
2007-01-31T15:31:00Z (17 years ago)
From
Margaret Chester at PSU <chester@astro.psu.edu>
M. M. Chester (PSU) and O. Godet (U. Leicester) report on behalf
of the Swift UVOT team:
The Swift/UVOT observed the field of GRB 070129 starting 124 s
after the BAT trigger (Godet et al. 2007, GCN Circ. 6053). We do
not find any source, in any of the UVOT observations, inside the
refined XRT error circle (Godet et al., 2007 GCN Circ. 6056).
The 3-sigma upper limits for detecting a source inside the XRT
error circle in the V-band settling image, the finding-chart
exposures, and the co-added frames are:
Filter T_start T_stop Exp(s) Mag (3-sigma UL)
-----------------------------------------------------------------
V settling 124 133 9 17.3
V finding 247 647 400 19.2
V finding 979 1379 400 19.8
White finding 142 242 100 19.7
White finding 873 973 100 20.0
V 124 47339 3046 20.7
B 726 53670 3073 21.4
U 701 53414 5398 21.3
UVW1 678 52501 4895 22.2
UVM2 653 58021 3956 22.0
UVW2 754 46426 2239 22.0
White 143 13183 1460 20.8
-----------------------------------------------------------------
The values quoted above are not corrected for the expected Galactic
extinction corresponding to a reddening of E_{B-V} = 0.14 mag towards
the direction of the burst (Schlegel et al. 1998).