GCN Circular 8055
Subject
GRB 080802: Swift/UVOT Upper Limits
Event
Date
2008-08-03T05:56:21Z (17 years ago)
From
Patricia Schady at MSSL/Swift <ps@mssl.ucl.ac.uk>
P. Schady (MSSL-UCL) and W.H. Baumgartner (GSFC/UMBC) report on behalf of
the Swift/UVOT team:
The Swift/UVOT observed the field of GRB 080802 starting 87 s after the
BAT trigger (Baumgartner et al., GCN Circ. 8051). We do not find a source
in any of the UVOT observations inside the XRT error circle (Baumgartner
et al., GCN Circ. 8051). The 3-sigma upper limits for detecting a source
in the first white and v finding charts (FC) exposure and co-added frames
are:
Filter T_start T_stop Exp Mag (3-sigma UL)
(s) (s) (s)
=========================================================
white (FC) 87 186 100 > 20.0
white 4803 5002 200 > 20.4
v (FC) 193 406 213 > 18.7
v 5214 5413 200 > 18.7
b 4598 6189 356 > 20.1
u 4393 6028 400 > 19.9
uvw1 4188 5822 400 > 19.8
uvm2 3983 5618 400 > 19.7
uvw2 5009 5208 200 > 19.5
The values quoted above are not corrected for the expected Galactic
extinction corresponding to a reddening of E(B-V) = 0.80 mag in the
direction of the burst (Schlegel et al. 1998).