GCN Circular 8071
Subject
GRB 080805: Swift/UVOT Upper Limits
Date
2008-08-05T22:48:54Z (16 years ago)
From
Paul Ward at MSSL <paw@mssl.ucl.ac.uk>
P. Ward (MSSL-UCL) and C. Pagani (PSU) report on behalf of
the Swift/UVOT team:
The Swift/UVOT observed the field of GRB 080805 starting 74 s after the
BAT trigger (Pagani et al., GCN Circ. 8059). We do not find a source in
any of the UVOT observations inside the XRT error circle or at the
position reported by Kruehler et al. (GCN 8060). The 3-sigma upper limits
for detecting a source are:
Filter T_start T_stop Exp Mag
White 76 175 98.5 > 20.70
White 5473 18024 1082 > 22.12
v 182 6083 332 > 19.81
b 5268 17112 1082 > 21.43
u 5061 5260 197 > 20.11
uvw1 4856 5055 197 > 19.99
uvm2 4650 6267 371 > 20.09
uvw2 5680 18053 219 > 20.12
The values quoted above are in the UVOT photometric system
(Poole et al. 2008, MNRAS, 383, 627). No correction has been
made for the expected extinction corresponding to E(B-V) of
0.043 mag in the direction of the burst (Schlegel et al. 1998).