GCN Circular 8527
Subject
GRB 081118: Swift UVOT Upper Limits
Date
2008-11-19T01:10:01Z (15 years ago)
From
Erik Hoversten at Swift/Penn State <hoversten@astro.psu.edu>
E. A. Hoversten (PSU) reports on behalf of the Swift UVOT team:
The Swift/UVOT began settled observations of the field of
GRB 081118 150s after the BAT trigger (Hoversten et al., GCN 8524).
We do not detect any source at the enhanced Swift XRT position (Evans
et al., GCN 8525). UVOT magnitude 3-sigma upper limits are reported
in the following table:
Filter T_start T_stop Exp(s) Mag (3-sigma upper limit)
-------------------------------------------------------------
white 150 300 147 > 21.32
white 854 1004 147 > 21.29
white 5726 5926 196 > 21.50
v 6137 6337 196 > 19.79
b 5522 5721 196 > 20.82
u 5316 5515 196 > 20.49
uvw1 5111 5310 196 > 20.26
uvm2 4905 5105 196 > 19.88
uvw2 5933 6132 196 > 20.24
The quoted upper limits have not been corrected for the expected
Galactic extinction along the line of sight of E_(B-V) = 0.04 mag.
All photometry is on the UVOT photometric system described in Poole et
al. (2008, MNRAS, 383, 627).