GCN Circular 19923
Subject
GRB 160910A: Swift/UVOT Detection
Event
Date
2016-09-14T17:12:41Z (9 years ago)
From
Lea Hagen at PSU <lea.zernow.hagen@gmail.com>
L. M. Z. Hagen (PSU) and J. R. Cummings (GSFC/UMBC)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 160910A
196954 s after the Fermi/GBM (Veres et al., GCN Circ. 19901) and
Fermi/LAT (Racusin et al., GCN Circ. 19902) triggers. We detect a
fading source consistent with the XRT position (D'Ai et al., GCN Circ.
19904) and optical detections (de Ugarte Postigo et al., GCN Circ.
19907; Malesani et al., GCN Circ. 19908; Lipunov et al., GCN Circ.
19914; Mazaeva et al., GCN Circ. 19919).
Preliminary detections 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 196954 267060 1620 20.61+-0.14
white 267064 318724 2326 20.95+-0.14
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.01 in the direction of the burst
(Schlegel et al. 1998).