GCN Circular 15912
Subject
GRB 140302A: Swift/UVOT Upper Limits
Date
2014-03-03T16:24:29Z (10 years ago)
From
Mike Siegel at PSU/Swift MOC <siegel@swift.psu.edu>
M. H. Siegel (PSU) and C. Pagani (U Leicester)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 140302A
80 s after the BAT trigger (Pagani et al., GCN Circ. 15901).
No optical afterglow consistent with the optical position
(Elliott et al. GCN Circ. 15903)
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) 80 230 147 >20.5
white 80 593 167 >20.6
white 10575 11481 590 >21.1
v 624 643 19 >18.3
v 16940 17847 590 >19.4
b 549 569 19 >19.3
b 9662 10569 590 >20.5
u (fc) 293 543 246 >19.7
uvw1 672 692 19 >19.0
uvm2 17853 17993 137 >18.9
uvw2 11487 12232 732 >20.2
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.52 in the direction of the burst
(Schlegel et al. 1998).