[vsnet-grb-info 17439] GRB 160113A: Swift-XRT observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  18862
SUBJECT: GRB 160113A: Swift-XRT observations
DATE:    16/01/14 10:15:05 GMT
FROM:    Sarah Gibson at U.of Leicester  <slg44 at leicester.ac.uk>

A.P. Beardmore (U. Leicester), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA),
A. Maselli  (INAF-IASFPA), L.M. McCauley (PSU), J.A. Kennea (PSU), B.
Sbarufatti (INAF-OAB/PSU), S.L. Gibson (U. Leicester) and P.A. Evans
(U. Leicester) report on behalf of the Swift-XRT team:

Swift-XRT has performed follow-up observations of the
Fermi/GBM-detected burst GRB 160113A (Roberts et al. GCN Circ. 18861),
collecting 2.7 ks of Photon Counting (PC) mode data between T0+46.7 ks
and T0+53.0 ks. The pointing was aimed at the optical transient
candidate iPTF15flo (Singer et al. GCN Circ. 18859).

No X-ray sources have been detected inside or close to the iPTF15flo
error region. The 3-sigma upper limit at the iPTF15flo position is
0.005 ct s^-1, corresponding to a 0.3-10 keV observed flux of 2.1e-13
erg cm^-2 s^-1 (assuming a typical GRB spectrum).

The results of the XRT-team automatic analysis of the XRT observations,
including a position-specific upper limit calculator, are available at
http://www.swift.ac.uk/ToO_GRBs/00020594.

This circular is an official product of the Swift-XRT team.