GCN Circular 20181
Subject
GRB161117A: REM optical and NIR afterglow detection
Date
2016-11-17T08:52:18Z (7 years ago)
From
Paolo D'Avanzo at INAF-OAB <paolo.davanzo@brera.inaf.it>
P. D'Avanzo, D. Fugazza, S. Covino, A. Melandri (INAF/OAB) report on behalf of the REM team:
We observed the field of GRB 161117A (Cummings et al., GCN 20179) with the 60-cm robotic telescope REM
located at the La Silla Observatory (Chile). The observations started at 01:37:05 UT, 89 seconds after the burst,
and were carried out simultaneously in the g, r, i, z and H bands.
A preliminary photometry indicates that the optical and NIR afterglow (Cummings et al., GCN 20179; Malesani
et al. GCN 20180) is detected with a magnitude H = 16.4 +/- 0.3 at t-t0 = 233 s, and r = 18.3 +/- 0.3 at t-t0 = 808 s.
Magnitudes are in the AB system and have been calibrated with respect to the 2MASS (H-band) and APASS
(r-band) catalogues.