[vsnet-grb-info 18272] GRB 160714A: Swift/UVOT Upper Limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19720
SUBJECT: GRB 160714A: Swift/UVOT Upper Limits
DATE:    16/07/16 21:27:44 GMT
FROM:    Mike Siegel at PSU/Swift MOC  <siegel at swift.psu.edu>

M. H. Siegel (PSU)reports on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 160714A
1682 s after the BAT trigger (Siegel et al., GCN Circ. 19697).
No optical afterglow consistent with the BAT position
is detected in the 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)        1682         1831          147         >20.14
white             1914         8131          292         >21.04
v                 1964         8542          293         >19.67
b                 1889         7926          293         >20.12
u                 1865         7720          490         >20.07
uvw1              1840         2908          293         >20.06
uvw2              1939         8336          235         >20.08

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).