GCN Circular 19389
Subject
GRB160504A: Gemini NIR Observations
Event
Date
2016-05-05T15:38:40Z (10 years ago)
From
S. Bradley Cenko at NASA/GSFC <brad.cenko@nasa.gov>
S. B. Cenko (NASA/GSFC), A. J. Levan (U. Warwick), N. R. Tanvir (U. Leicester), A. Cucchiara (STScI), and A. Fruchter (STScI) report on behalf of a larger collaboration:
We imaged the location of GRB160504A (Malesani et al., GCN 19382) with the Near Infrared Imager and Spectrometer (NIRI) on the 8 m Gemini North telescope beginning at 5:24 UT on 5 May 2016 (~ 9.9 hr after the Swift trigger). A total of 10 min of integration was obtained in each of the J, H, and K filters. Within the enhanced XRT localization (Goad et al., GCN 19386) we identify a single faint source at J2000.0 coordinates:
RA: 11:20:17.18
Dec: +56:00:04.7
Using a nearby point source from 2MASS for calibration, we calculate the following AB magnitudes for this object:
J = 23.6 +/- 0.4
H = 23.8 +/- 0.4
K = 23.3 +/- 0.2
Given the faintness of the object, we cannot determine at this time if it associated with GRB160504A.