GCN Circular 4089
Subject
GRB 051006: Swift/UVOT Upper Limits
Date
2005-10-12T14:23:12Z (19 years ago)
From
Stephen Holland at USRA/NASA/GSFC/SSC <sholland@milkyway.gsfc.nasa.gov>
GRB 051006: Swift/UVOT Upper Limits
S. T. Holland (GSFC/USRA), J. Norris (GSFC), J. Greiner (MPE),
D. Hinshaw (GSFC-SPSYS), and N. Gehrels (GSFC) report on behalf
of the Swift/UVOT team:
The Swift/UVOT began observing the field of GRB 051006 107
seconds after the BAT trigger (Norris et al. GCN 4061). No new source
is detected at the position of the XRT error circle (Capalbi et
al. GCN 4066) in the initial 200 second V-band image down to a 5-sigma
upper limit of 18.3, or in summed exposures with any of the filters
down to the following 5-sigma magnitude upper limits.
Filter T_range (s) Exp (s) 5sig UL
V 107 - 98,547 12,033 20.5
B 474 - 68,573 4,111 20.9
U 420 - 64,478 3,846 20.4
UVW1 366 - 63,741 4,598 21.0
UVM2 311 - 73,819 4,179 21.3
UVW2 582 - 69,481 5,448 21.6
WHITE 527 - 577 50 18.5
These magnitudes have not been corrected for extinction.