GCN Circular 10957
Subject
GRB100713A: Swift/UVOT observations
Date
2010-07-14T12:38:05Z (14 years ago)
From
Massimiliano de Pasquale at MSSL-UCL <mdp@mssl.ucl.ac.uk>
M. De Pasquale (MSSL-UCL) and V. D'Elia (ASDC) on behalf of the Swift/UVOT
team report:
Swift/UVOT began settled observations of the INTEGRAL burst GRB100713A
(Mereghetti et al., GCN 10951) 6247s after the trigger.
At the position of the X-ray counterpart (D'Elia et al., GCN 10952), we do
not detect any optical afterglow in the exposures in UVOT filters down to
the following 3 sigma upper limits.
Filter T_start (s) T_stop (s) Exp (s) Mag upper limit
v 6403 6603 197 >19.6
wh 6247 12351 518 >21.8
b 11065 11965 880 >21.4
u 10152 11059 885 >20.7
uvw1 6813 6963 148 >19.8
uvm2 6608 6808 197 >19.6
The values quoted above are calculated using the UVOT photometric system
(Poole et al 2008, MNRAS, 383, 627) and are not corrected for the Galactic
extinction due to the reddening of E(B-V) = 0.06 in the direction of the
burst (Schlegel et al. 1998).