GCN Circular 16924
Subject
GRB 141017A: Swift/UVOT Detection
Event
Date
2014-10-18T11:06:06Z (12 years ago)
From
Samantha Oates at MSSL <sro@mssl.ucl.ac.uk>
S. R. Oates (IAA-CSIC/UCL-MSSL) and F. E. Marshall (NASA/GSFC)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 141017A
92 s after the BAT trigger (Marshall et al., GCN Circ. 16919).
A source consistent with the XRT position (Goad et al. GCN Circ. 16921)
is detected in the initial UVOT white filter exposures.
Preliminary detections and 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
white (FC) 92 242 150 20.54 +/- 0.25
white 859 1009 159 >20.91
v 633 13060 691 >20.0
b 559 17991 1306 >21.4
u 304 7171 717 >20.7
w1 683 6966 471 >20.3
m2 5133 6761 388 >20.1
w2 6152 12850 1082 >21.1
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.04 in the direction of the burst
(Schlegel et al. 1998).