GCN Circular 12848
Subject
GRB 120116A: Swift/UVOT Upper Limits
Date
2012-01-17T22:57:58Z (13 years ago)
From
Paul Kuin at MSSL <npkuin@gmail.com>
N. P. M. Kuin (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 120116A
83 s after the BAT trigger (Melandri et al., GCN Circ. 12834).
No optical afterglow consistent with the enhanced XRT position
Goad et al, GCN_Circ. 12846) 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 83 233 147 >21.0
u_FC 296 546 246 >20.1
white 83 919 192 >21.1
v 4479 4679 197 >19.1
u 296 5173 324 >20.4
w1 4889 5089 197 >20.2
m2 4684 4884 197 >19.8
w2 4274 4474 197 >20.5
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.05 in the direction of the burst
(Schlegel et al. 1998).