GCN Circular 7820
Subject
Swift/UVOT observations of GRB080604
Event
Date
2008-06-04T21:27:12Z (18 years ago)
From
Massimiliano de Pasquale at MSSL-UCL <mdp@mssl.ucl.ac.uk>
M. De Pasquale (MSSL/UCL), V. La Parola (INAF-IASFPA),
F. E. Marshall (GSFC) report:
The Swift UltraViolet/Optical Telescope (UVOT) began its
first finding chart exposure of GRB080604 (La Parola
et al., GCN circ. 7800) 129 seconds after the trigger
in white filter and detected the optical afterglow (GCN
circ. 7800). The coordinates of this transient are:
Dec: 15:47:51.68
RA: +20:33:28.0
The afterglow is detected only in the white filter.
Magnitudes and 3 sigma upper limits are listed in the
table below.
Filter T_start(s) T_stop(s) Exp(s) Magnitude
white 129 228 99 20.1 +/- 0.2
white 730 739 10 > 19.7
white 869 968 99 21.0 +0.3 -0.2
white 1479 1651 39 > 20.7
white 5369 7031 393 21.8 +0.5 -0.4
v 235 635 393 > 20.1
v 769 1373 412 > 20.0
v 1519 1701 39 > 18.8
v 5807 7441 393 > 19.9
v 17489 18395 885 > 20.3
b 716 725 10 > 19.0
b 1454 1637 39 > 19.8
b 5191 6826 393 > 21.0
u 691 862 39 > 19.4
u 1430 1612 39 > 19.4
u 4896 6621 393 > 20.7
u 12600 13306 689 > 21.0
uw1 667 1738 46 > 19.6
uw1 6217 12591 1082 > 21.2
um2 641 19090 1931 > 21.6
uw2 745 17482 1395 > 21.4
The values quoted above are on the UVOT Photometric System
(Poole et al, 2008, MNRAS 383,627). They are not corrected
for the expected Galactic reddening of E(B-V) = 0.049 in the
direction of the burst (Schlegel et al. 1998).
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