GCN Circular 13297
Subject
GRB 120514A: Swift/UVOT Upper Limits
Event
Date
2012-05-14T16:42:24Z (14 years ago)
From
Erik Hoversten at Swift/Penn State <hoversten@astro.psu.edu>
E. A. Hoversten (PSU) and V. Mangano (INAF-IASFPA)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 120514A
110 s after the BAT trigger (Mangano et al., GCN Circ. 13289).
No optical afterglow consistent with the enhanced XRT position
(Evans et al., GCN Circ. 13292) 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 110 260 147 >20.6
u_FC 324 574 246 >20.5
white 110 1029 295 >20.9
u 324 574 246 >20.5
The magnitudes in the table are not corrected for the Galactic
extinction
due to the reddening of E(B-V) = 1.63 in the direction of the burst
(Schlegel et al. 1998).