GCN Circular 7246
Subject
GRB 080129: Swift/UVOT Refined Upper Limits
Date
2008-01-31T13:12:48Z (16 years ago)
From
Stephen Holland at USRA/NASA/GSFC/SSC <sholland@milkyway.gsfc.nasa.gov>
S. T. Holland (CRESST/GSFC/USRA) and S. Immler (CRESST/UMCP/GSFC)
report on the behalf of the Swift UVOT team:
The Swift/UVOT observed the field of GRB 080129 starting 3188 s
after the BAT trigger (Immler et al. 2007, GCN Circ. 7226). We do not
find any source, in any of the UVOT observations, at the location of
the Gemini-South source (Bloom, 2007 GCN Circ. 7229).
The 3-sigma upper limits for detecting a source at this
location in the co-added images are:
Filter T_start T_stop Exp(s) Mag (3-sigma upper limit)
-----------------------------------------------------------------
v 3188 21,457 2023 21.3
b 4134 28,152 2164 22.2
u 3929 27,239 1278 21.5
uvw1 3724 32,166 1182 21.3
uvm2 3519 22,362 1279 21.2
uvw2 4545 17,372 1920 21.7
white 3207 28,940 2856 23.1
-----------------------------------------------------------------
This burst occurred 1.43 degrees from the Galactic plane, so the
Galactic reddening along the line of sight is highly uncertain. The
values quoted above are not corrected for Galactic extinction. All
photometry is on the UVOT flight system described in Poole et al.
(2008).