GCN Circular 8161
Subject
GRB080828: Swift/UVOT Upper Limits
Event
Date
2008-08-29T17:08:41Z (17 years ago)
From
Paul Ward at MSSL <paw@mssl.ucl.ac.uk>
P. Ward (MSSL-UCL) and W. Baumgartner (GSFC/UMBC) report on behalf of the
Swift/UVOT team:
The Swift/UVOT observed the field of GRB 080828 starting 39.15ks after the
SuperAGILE detection (Del Monte et al., GCN Circ. 8151). We do not detect
any afterglow at the Swift XRT position reported by Beardmore et al.
(GCN Circ. 8157) in any of the following UVOT filters down to the given 3
sigma upper limits.
Filter T_start(s) T_stop Exp(s) MagLimit
White 46201 46561 355.8 > 21.40
u 44376 51948 1798.8 > 20.65
b 45289 52309 1250.3 > 21.33
w1 40064 51035 1615.6 > 21.05
m2 39156 40055 899.8 > 20.50
The photometry is on the UVOT photometric system described in Poole et al.
(2008, MNRAS, 383,627). The above magnitudes are not corrected for the
Galactic extinction corresponding to a reddening of E(B-V) ~ 0.81 mag
(Schlegel et al., 1998).