GCN Circular 8340
Subject
GRB081007: Swift/UVOT Observations
Event
Date
2008-10-08T12:40:42Z (17 years ago)
From
Peter Brown at PSU <pbrown@astro.psu.edu>
P. J. Brown (PSU) and W. H. Baumgartner (GSFC/UMGC)
report on behalf of the Swift/UVOT team:
The Swift/UVOT observed the field of GRB 081007
starting about 109 s after the BAT detection
(Baumgartner et al., GCN Circ. 8330). We report additional
detections and 3 sigma upper limits of the fading afterglow
(where T_start and T_stop represent the
elapsed time since the BAT trigger in seconds).
Filter T_start(s) T_stop Exp(s) Mag or 3 Sigma Limit
uvw2 725 1508 40 >18.8
uvm2 621 1394 59 >18.8
uvw1 646 1419 59 >19.3
u 670 1443 59 18.5 +/- 0.2
b 695 1468 39 19.1 +/- 0.2
v 215 615 394 17.5 +/- 0.1
v 969 1369 393 18.6 +/- 0.1
white 109 209 98 17.0 +/- 0.1
white 862 962 98 18.8 +/- 0.1
The above magnitudes are not corrected for the Galactic extinction
corresponding to a reddening of E(B-V) = 0.015 mag (Schlegel et al.,
1998, ApJS, 500, 525). The photometry is on the UVOT photometric
system described in Poole et al. (2008, MNRAS, 383,627).