GCN Circular 10867
Subject
GRB 100619A: Swift/UVOT Upper Limits
Date
2010-06-19T13:15:56Z (14 years ago)
From
Peter Curran at MSSL <pac@mssl.ucl.ac.uk>
P.A. Curran (MSSL-UCL) and J. K. Cannizzo (NASA/UMBC) report on behalf
of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 100619A 87
s after the BAT trigger (Cannizzo et al., GCN Circ. 10863). No optical
afterglow consistent with the enhanced XRT position (Beardmore et al.,
GCN Circ. 10865) is detected in the initial UVOT exposures. Preliminary
3-sigma upper limits using the UVOT photometric system (Poole et al.
2008, MNRAS, 383, 627) for the first finding chart (FC) and subsequent
exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
-----------------------------------------------
white 87 237 147 >21.2 (FC)
u 300 549 246 >20.5 (FC)
white 87 6773 785 >22.0
v 630 7184 510 >20.2
b 556 13220 1161 >21.5
u 300 19002 2089 >21.6
w1 679 18300 2128 >21.7
m2 654 17394 1396 >21.4
w2 606 6978 510 >20.9
The values quoted above are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.03 in the direction of the burst
(Schlegel et al. 1998).