GCN Circular 16804
Subject
GRB 140907A: Nishi-Harima NIR Observations
Event
Date
2014-09-09T07:55:31Z (12 years ago)
From
Akira Arai at Nishi-Harima Astro. Obs/U of Hyogo <arai@nhao.jp>
J. Takahashi, A. Arai, S. Honda, Y. Takagi, K. Morihana (Univ. of Hyogo)
report on behalf of Nayuta team and OISTER collaboration:
We observed the field of GRB 140907A (H. A. Krimm et al., GCN 16788)
with Nishiharima Infrared Camera (NIC) attached to the Nayuta 2-m
telescope at the Nishi-Harima Astronomical Observatory.
The observations were started at 19:00 UT on 2014-09-07.
We detected the near-infrared afterglow in J, H and Ks bands.
Photometric results of our observations are shown below.
We used 2MASS 03123451+4635419, 03123283+4635411, and 03123016+4635375
as reference stars for photometry.
# MID-UT Tmid-T0 T-EXP J_mag H_mag Ks_mag
-----------------------------------------------------------------------
19:07:32 3.0 600 17.5 +/- 0.2 17.0 +/- 0.1 16.6 +/- 0.3
------------------------------------------------------------------------
Tmid-T0: Elapsed time after the burst (hours)
T-EXP: Total Exposure time (seconds)