GCN Circular 11354
Subject
GRB 101017A: Swift/UVOT Observations
Date
2010-10-18T14:20:49Z (14 years ago)
From
Mike Siegel at PSU/Swift MOC <siegel@astro.psu.edu>
M. H. Siegel (PSU) reports on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of
GRB 101017A 88s after the BAT trigger (Siegel et al.,
GCN Circ. 11345). The source reported by Siegel et al.
is confirmed in the u and white filters but has not been detected
since the first orbit.
The 3-sigma upper limits for the finding chart (fc) and
summed exposures are reported below:
FILTER T_start(s) T_stop Exposure Mag/3uL
========================================================
white (fc) 88 238 147 19.85+-0.22
white 88 1724 409 20.09+-0.17
white 5660 7296 393 >21.03
v 630 1773 136 >18.81
v 6071 11723 1158 >19.93
b 556 1699 116 >19.66
b 5456 7091 393 >20.30
u 301 550 245 19.15+-0.23
u 301 1675 343 19.22+-0.20
u 5250 6886 393 >19.94
uvw1 679 1648 116 >19.22
uvw1 5046 13365 1112 >20.60
uvm2 654 1797 116 >19.08
uvm2 6276 12628 1082 >20.63
uvw2 605 1749 136 >19.52
uvw2 5866 7502 393 >20.22
=======================================================
The above magnitudes are not corrected for the Galactic extinction
corresponding to a reddening of E_{B-V} = 0.17 (Schlegel et al.,
1998, ApJS, 500, 525). The photometry is on the UVOT photometric
system described in Poole et al. (2008, MNRAS, 383, 627).