[vsnet-grb-info 14174] GRB 131110A: Swift-XRT and UVOT upper limits
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Sat Nov 16 00:30:13 JST 2013
TITLE: GCN CIRCULAR
NUMBER: 15488
SUBJECT: GRB 131110A: Swift-XRT and UVOT upper limits
DATE: 13/11/15 15:29:45 GMT
FROM: Kim Page at U.of Leicester <klp5 at leicester.ac.uk>
K.L. Page, P.A. Evans (U. Leicester) and N.P.M. Kuin (UCL-MSSL) report on
behalf of the Swift-XRT and UVOT teams:
The Swift-XRT began observing the field of GRB 131011A 397 ks after the
event (Cummings & Palmer, GCN Circ. 15483). In 2.8 ks of Photon Counting
(PC) mode data, no source was found in the BAT error circle; the 3-sigma
upper limit (0.3-10 keV) is 3.6e-3 count s^-1
The Swift-UVOT also began observations of the field of GRB 131110A at the
same time. No optical afterglow was found in the image. Preliminary
3-sigma upper limits using the UVOT photometric system (Breeveld et al.
2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
white 397556 409058 892 >20.2
v 398095 409489 938 >18.6
u 397018 408678 892 >19.2
This circular is an official product of the Swift team.
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