GCN Circular 19488
Subject
GRB160601A: NOT afterglow confirmation
Date
2016-06-02T05:43:55Z (8 years ago)
From
Steve Schulze at U of Iceland <sts30@hi.is>
S. Schulze (PUC, MAS), D. Malesani (DARK/NBI), A. A. Djupvik (NOT) and P. Jakobsson (U Iceland) report on behalf a larger collaboration:
We re-observed the field of the short GRB 160601A (Kocevski et al., GCN 19478) with the Nordic Optical Telescope (NOT) equipped with the AlFOSC imager. Our first 600-s exposure in the r band started on June 1 at 21:14:48 UT (13.5 hr after the GRB).
We cleanly detect the two objects reported in Malesani et al. (GCN 19485).
Object (1) (RA, Dec. = 15:39:43.97, +64:32:30.5) faded from 22.85 +- 0.10 to 23.36 +- 0.10 mag. The fading corresponds to a decay slope of 0.64 +- 0.25.
Object (2) (RA, Dec. = 15:39:44.91, +64:32:32.1) exhibits no variability beyond the 1.7 sigma confidence level.
These properties let us conclude that object (1) is the afterglow of the short GRB.
[GCN OPS NOTE(02jun16): Per author's request, the start time in the first sentence
was corrected from "21:14:48" to "04:15:44".]