GCN Circular 14768
Subject
GRB 130604A: Swift/UVOT Upper Limits
Date
2013-06-05T10:15:08Z (11 years ago)
From
Alice Breeveld at MSSL-UCL <a.breeveld@ucl.ac.uk>
A. A. Breeveld (MSSL-UCL) and A. Melandri (INAF-OAB) report on behalf of
the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130604A
109 s after the BAT trigger (Melandri et al., GCN Circ. 14752). No
optical afterglow consistent with the optical position (Perley, GCN
Circ. 14753) is detected in the initial UVOT exposures.
Preliminary 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding
chart (FC) exposure and subsequent exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
white_FC 109 258 147 >20.4
white 109 17767 1345 >21.8
v 5004 11999 1055 >20.3
b 4388 16933 1278 >21.5
u 267 5818 378 >20.0
w1 5414 5613 197 >20.0
m2 5208 5408 197 >19.7
w2 4798 11112 1082 >21.3
The magnitudes in the table are not corrected for the Galactic
extinction due to the reddening of E(B-V) = 0.03 in the direction of the
burst (Schlegel et al. 1998).