GCN Circular 18884
Subject
GRB 160117B: NOT optical afterglow observations
Date
2016-01-18T01:27:54Z (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),
R. Carrera (IAC-ULL), C.E. Martinez-Vazquez (IAC-ULL), P. Jakobsson (Univ. Iceland),
report on behalf of a larger collaboration:
We observed the optical counterpart of GRB 160117B (Sonbas et al., GCN
18875; Yurkov et al., GCN 18877; Kruehler et al., GCN 18878) with the
Nordic Optical Telescope (NOT) equipped with the ALFOSC camera.
In a 300-s exposure taken starting on Jan 18.028 UT (10.7 hr after the
GRB), we measure for the afterglow a magnitude of R = 20.36 +- 0.11
(Vega), calibrated against several nearby USNO-B1 stars (R1 magnitudes),
with the uncertainty mostly due to the scatter in the USNO values.
[GCN OPS NOTE(18jan16): Per author's request, C.E.M-V was added, and the
affiliations were adjusted for A.dU.P. and R.C..]