GCN Circular 19191
Subject
GRB 160314A: NOT afterglow observations
Date
2016-03-14T22:35:45Z (8 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@dark-cosmology.dk>
D. Malesani (DARK/NBI), A. de Ugarte Postigo (IAA-CSIC and DARK/NBI), T.
Kruehler (MPE Garching), A. Kvammen (Univ. Tromsoe, Norway, and NOT),
report on behalf of a larger collaboration:
We observed the optical counterpart of GRB 160314A (D'Elia et al., GCN
19182; Siegel & D'Elia, GCN 19187) with the Nordic Optical Telescope
(NOT) equipped with the AlFOSC imager. Our observations were carried out
in the r and i bands, and started on 2016 March 14.86 (9.07 hr after the
GRB).
An object at a position consistent with the UVOT object is detected in
both filters. We measure its coordinates to be (J2000; 0.3" uncertainty):
RA = 07:31:09.73
Dec = +16:59:58.7
At a mean epoch of Mar 14.865 UT, we measure for the afterglow r = 22.40
+- 0.06 (AB), calibrated against nearby SDSS stars. We thus confirm the
UVOT object as the afterglow of GRB 160314A.
We note that a faint object is marginally detected at the afterglow
position in the SDSS data, visible after stacking the gri images. This
could be a relatively bright host galaxy for GRB 160314A. A finding
chart is available at the following link:
http://www.astro.ku.dk/~malesani/GRB/160314A/160314A_NOT_SDSS.jpg
