GCN Circular 15737
Subject
GRB 140114A: Swift/UVOT Upper Limits
Date
2014-01-14T22:18:03Z (10 years ago)
From
Massimiliano de Pasquale at MSSL-UCL <m.depasquale@ucl.ac.uk>
M. De Pasquale (UCL-MSSL) and E. Troja (NASA/GSFC/UMCP)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 140114A
120 s after the BAT trigger (Troja et al., GCN Circ. 15728).
No optical afterglow consistent with the XRT position
(Beardmore et al. GCN Circ. 15733) is detected in the initial UVOT
exposures and following summed 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 120 270 147 >20.9
u_FC 278 528 246 >20.2
white 120 1701 411 >21.2
v 608 1404 97 >18.8
b 534 1330 78 >19.6
u 278 528 246 >20.2
w1 658 1626 117 >19.3
m2 633 1429 58 >18.6
w2 1013 1379 39 >18.6
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).