GCN Circular 8043
Subject
GRB 080727C: Swift/UVOT Upper Limits
Date
2008-07-28T19:41:18Z (16 years ago)
From
Erik Hoversten at Swift/Penn State <hoversten@astro.psu.edu>
E. A. Hoversten (PSU) and A. M. Parsons (GSFC) report on behalf of the
Swift/UVOT team:
The Swift/UVOT began observing the field of GRB 080727C starting 82
seconds after the BAT trigger (Parsons, et al. GCN Circ. 8035). We do
not detect any source in any of the filters at the UVOT-enhanced XRT
position (Osborne, et al., GCN Circ. 8038). The 3-sigma upper limits
at this position for single exposures are:
Filter T_start T_stop Exp(s) Mag (3-sigma upper limit)
-----------------------------------------------------
white 82.1 181.0 97.3 > 20.81
white 3987.1 4186.8 196.6 > 21.58
v 187.4 587.2 393.5 > 19.89
v 4397.7 4597.5 196.6 > 19.93
b 668.8 673.4 4.6 > 17.79
u 643.0 662.8 19.5 > 18.32
uvw1 618.4 638.2 19.5 > 18.11
uvm2 593.5 613.3 19.5 > 17.61
uvw2 4192.9 4392.7 196.6 > 20.17
The quoted upper limits have not been corrected for the expected
Galactic extinction along the line of sight corresponding to a large
reddening of E_{B-V} = 1.1 mag. All photometry is on the UVOT flight
system described in Poole et al. (2008, MNRAS, 383, 627).