GCN Circular 10370
Subject
GRB 100205A: Swift UVOT upper limits
Date
2010-02-05T17:37:38Z (15 years ago)
From
Erik Hoversten at Swift/Penn State <hoversten@astro.psu.edu>
E. A. Hoversten (PSU) and J. L. Racusin (NASA/GSFC) report on behalf
of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 100205A
177s after the BAT trigger (Racusin et al., GCN 10361). We do not
detect any source at the enhanced Swift XRT position (Racusin et al.,
GCN 10361) nor at the position of the Gemini-North K-band detection
(Tanvir et al., GCN 10366). UVOT magnitude 3-sigma upper limits are
reported in the following table:
Filter T_start T_stop Exp(s) Mag (3-sigma upper limit)
-------------------------------------------------------------
white 177 327 147 > 20.76
white 177 1533 392 > 21.31
v 665 1580 94 > 18.84
b 763 1162 38 > 19.25
u 335 1311 265 > 20.08
The quoted upper limits have not been corrected for the expected
Galactic extinction along the line of sight of E_(B-V) = 0.02 mag
(Schlegel et al. 1998). All photometry is on the UVOT photometric
system described in Poole et al. (2008, MNRAS, 383, 627).