GCN Circular 16572
Subject
GRB 140710A: Swift/UVOT Upper Limits
Date
2014-07-10T20:28:33Z (11 years ago)
From
Samantha Oates at MSSL <sro@mssl.ucl.ac.uk>
S. R. Oates (IAA-CSIC/UCL-MSSL) and M. H. Siegel (PSU)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 140710A
103 s after the BAT trigger (Siegel et al., GCN Circ. 16563).
No optical afterglow consistent with the optical position
(Delvaux et al., GCN Circ. 16566, Tanga et al., GCN Circ. 16565) or the enhanced XRT position
(Osborne et al., GCN Circ. 16569) 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 103 253 147 >20.1
u_FC 315 565 246 >19.2
white 103 5830 363 >20.7
v 644 16380 1090 >19.8
b 570 12165 806 >20.3
u 315 11556 1376 >20.5
w1 4153 17926 1706 >20.7
m2 3948 17285 1245 >20.8
w2 620 6035 216 >19.7
The magnitudes in the table 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).