NASA Swift: GRB 060522: Swift/UVOT Observations of the Optical Afterglow
TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 5158
SUBJECT: GRB 060522: Swift/UVOT Observations of the Optical Afterglow
DATE: 06/05/23 16:26:10 GMT
FROM: Stephen Holland at USRA/NASA/GSFC/SSC sholland@milkyway.gsfc.nasa.gov
GRB 060522: Swift/UVOT Observations of the Optical Afterglow
S. T. Holland (NASA/GSFC & USRA) reports on behalf of the Swift/UVOT team:
The Swift UVOT began observing GRB 060522 (trigger #211117, Fox et al., GCN Circular 5150) 129 seconds after the BAT trigger. We detect the UVOT optical transient reported in the above Circular in the White filter. The J2000 coordinates of the afterglow are
RA = 21:31:44.85
Dec = +02:31:44.9
with an uncertainty of +/- 0.6 arcseconds (90% containment).
Magnitudes and 3-sigma upper limits are reported below.
Midpoint Coadded
Filter Time Exposure Mag Err
(sec) (sec)
White 198 100 19.65 0.21
White 749 9 >18.4 3-sigma upper limit
White 927 98 >20.3 3-sigma upper limit
White 6266 197 >20.9 3-sigma upper limit
White 74,157 4766 >22.1 3-sigma upper limit
V 452 400 >20.1 3-sigma upper limit
V 792 20 >17.6 3-sigma upper limit
V 1100 231 >19.5 3-sigma upper limit
V 18,351 1967 >20.8 3-sigma upper limit
B 3447 206 >20.7 3-sigma upper limit
U 18,315 1451 >21.0 3-sigma upper limit
UVW1 17,925 2904 >22.0 3-sigma upper limit
UVM2 17,533 1944 >21.9 3-sigma upper limit
UVW2 23,194 2001 >21.7 3-sigma upper limit
These data are consistent with the burst having a redshift of z = 5.11 (Cenko et al., 2006, GCN Circular 5155). No correction has been made for the Galactic reddening of E(B-V) = 0.05 mag (Schlegel et al. 1998) along the line of sight to GRB 060522.
