GCN Circular 19016
Subject
GRB 160216A: Swift/UVOT Upper Limits
Date
2016-02-17T00:04:06Z (8 years ago)
From
Paul Kuin at MSSL <npkuin@gmail.com>
N. P. M. Kuin (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 160216A
101 s after the BAT trigger (Troja et al., GCN Circ. 19014). No optical
afterglow consistent with the XRT position (Beardmore et al. GCN Circ.
19015) has been 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 101 251 147 >19.8
u_FC 314 564 246 >19.1
white 101 5921 541 >20.6
v 4695 6301 364 >19.0
b 4079 5716 393 >19.9
u 314 5510 442 >19.3
w1 5105 5305 197 >19.4
m2 4900 5099 197 >19.7
w2 4490 6126 393 >20.4
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).