GCN Circular 3851
Subject
Swift/UVOT UV Photometry of GRB 050820B
Date
2005-08-22T04:57:22Z (19 years ago)
From
Margaret Chester at PSU <chester@astro.psu.edu>
M. Chester (PSU), M. Page (UCL-MSSL), F. Marshall (GSFC), P. Roming (PSU),
D. Hinshaw (GSFC-SPSYS), P. Meszaros (PSU), N. Gehrels (GSFC)
on behalf of the Swift UVOT team.
Swift/UVOT observed GRB 050820B in its UV filters only, due to the
presence of a
V=4.5 star in its field of view. The afterglow was not detected at the
XRT position.
5-sigma upper limits are:
Filter Magnitude Exp (s) T_start T_stop
UVM2 >19.1 100 1987 2087
UVW1 >19.0 100 2091 2191
UVW2 >19.3 100 2198 2298
where T_start and T_stop are in seconds after the trigger (Page et al.
GCN 3839).