[vsnet-grb-info 15838] GRB 141130: Swift/UVOT Detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  17126
SUBJECT: GRB 141130: Swift/UVOT Detection
DATE:    14/12/01 13:26:52 GMT
FROM:    Paul Kuin at MSSL  <npkuin at gmail.com>

S. R. Oates (IAA-CSIC/UCL-MSSL) and A. Vargas (PSU) report
on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of
GRB 141130  95 s after the BAT trigger (Vargas et al., GCN
Circ. 17120).  A source consistent with the XRT position
(Goad et al. GCN Circ. 17123)  is detected in the initial UVOT
exposures.

The preliminary UVOT position is:
    RA  (J2000) =  14:51:17.23 = 222.82181 (deg.)
    Dec (J2000) = +47:19:07.3  =  47.31870 (deg.)
with an estimated uncertainty of 0.45 arc sec. (radius, 90% confidence).

Preliminary detections and 3-sigma upper limits using the UVOT photometric
system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures
are:

Filter         T_start(s)   T_stop(s)      Exp(s)           Mag

white               95          244          147         18.71 +/- 0.06
v                  636          655           19        >17.8
b                  562          753           39        >20.1
u                  306          556          246         18.85 +/- 0.13
w1                 684          704           19        >18.7
w2                 611          798           34        >19.0

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).