GCN Circular 14136
Subject
GRB 130102A: Swift/UVOT Upper Limits
Date
2013-01-04T22:36:12Z (11 years ago)
From
Tyler Pritchard at PSU <tapritchard@astro.psu.edu>
T. A. Pritchard (PSU) and K. L. Page (U Leicester)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130102A
126 s after the BAT trigger (Page et al., GCN Circ. 14127).
No optical afterglow consistent with the XRT position
(Osborne et al. GCN Circ. 14129)
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 126 276 147 >21.1
u_FC 284 534 246 >20.4
white 126 7587 844 >22.4
v 614 12045 1343 >20.9
b 540 7382 549 >20.8
u 284 7177 775 >20.5
w1 664 6972 549 >20.2
m2 639 12641 934 >20.7
w2 590 7794 568 >20.7
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 1.90 in the direction of the burst
(Schlegel et al. 1998).