GCN Circular 5371
Subject
GRB 060729: Swift/UVOT Detections
Date
2006-07-30T06:29:16Z (18 years ago)
From
Stefan Immler at NASA/GSFC <immler@milkyway.gsfc.nasa.gov>
S. Immler (NASA/USRA/GSFC) reports on behalf of the Swift/UVOT team:
Analysis of the merged Swift/UVOT data of GRB 060729 (GCN 5365, 5366,
5367, 5369) obtained on 2006-07-29 shows that the optical afterglow
was detected in the White, V, B, U, UVW1, UVM2, and UVW2 filters.
The detection in all of the UVOT bands suggests that the redshift is
less than
approx. 1.1. The photometry results are given for the 7 UVOT filters below:
Filter T_start(s) Exposure(s) Mag
White 135 726 17.2
V 115 1,846 17.4
B 711 461 18.3
U 686 491 17.3
UVW1 663 491 17.4
UVM2 640 306 17.7
UVW2 730 1,088 18.0
Statistical and systematic errors are 0.1 mag each.
The values quoted above are not corrected for the expected
Galactic extinction of E_{B-V}=0.054 (Schlegel et al. 1998).