GCN Circular 19631
Subject
GRB 160630A: Swift/UVOT Upper Limits
Event
Date
2016-06-30T15:22:22Z (10 years ago)
From
Mike Siegel at PSU/Swift MOC <siegel@swift.psu.edu>
S. J. LaPorte (PSU) and H. A. Krimm (CRESST/GSFC/USRA)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 160630A
87 s after the BAT trigger (Krimm et al., GCN Circ. 19624).
No optical afterglow consistent with the enhanced XRT position
(Goad et al., GCN Circ 19626) or the optical/IR position
(Kann et al. GCN Circ. 19625) 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 87 237 147 >20.6
u_FC 300 550 246 >19.9
white 87 6366 530 >21.7
v 630 6777 439 >20.2
b 555 6161 236 >20.5
u 300 5956 462 >20.6
w1 680 7042 290 >19.7
m2 655 6982 432 >20.9
w2 606 6572 255 >19.7
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.48 in the direction of the burst
(Schlegel et al. 1998).