GCN Circular 10420
Subject
GRB 100213A: Swift/UVOT Upper Limits
Date
2010-02-14T12:39:40Z (14 years ago)
From
Peter Curran at MSSL <pac@mssl.ucl.ac.uk>
P.A. Curran (MSSL-UCL) and D. Grupe (PSU) report on behalf of the
Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 100213A
77s after the BAT trigger (Grupe et al., GCN 10411). No optical
afterglow consistent with the XRT position (Beardmore et al., GCN 10418)
is detected in the initial UVOT exposures.
Preliminary 3-sigma upper limits using the UVOT photometric system
(Poole et al. 2008, MNRAS, 383, 627) for the first exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
------------------------------------------------
white 77 227 147 >20.20
v 59 68 9 >17.19
u 289 366 75 >19.7
The values quoted above are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.31 in the direction of the burst
(Schlegel et al. 1998).