TITLE: GCN CIRCULAR NUMBER: 16496 SUBJECT: GRB 140629A: Nishi-Harima NIR Observations DATE: 14/06/30 15:01:06 GMT FROM: Akira Arai at Nishi-Harima Astro. Obs/U of Hyogo S. Honda, Y. Takagi, A. Arai, K. Morihana (Univ. of Hyogo) report on behalf of Nayuta team and OISTER collaboration: We observed the field of GRB 140629A (A. Y. Lien et al., GCN 16477) with Nishiharima Infrared Camera (NIC) attached to the Nayuta 2-m telescope at the Nishi-Harima Astronomical Observatory. The observations were conducted on 2014-06-29 at 14:27-15:32 UT. We detected the near-infrared afterglow in J, H and Ks bands. Photometric results of our observations are listed below. We used 2MASS 16355059+4151367, 16355050+4151433, and 16355992+4151103 as reference stars for photometry. # MID-UT Tmid-T0 T-EXP J_mag H_mag Ks_mag ----------------------------------------------------------------------- 14:34:02 0.28 600 14.1 +/- 0.2 13.3 +/- 0.1 12.7 +/- 0.2 14:51:34 0.57 600 15.1 +/- 0.2 14.2 +/- 0.1 13.6 +/- 0.2 15:08:16 0.85 600 15.6 +/- 0.2 14.8 +/- 0.1 14.1 +/- 0.2 15:22:49 1.08 480 16.0 +/- 0.2 15.1 +/- 0.1 14.3 +/- 0.2 ------------------------------------------------------------------------ Tmid-T0: Elapsed time after the burst (hours) T-EXP: Total Exposure time (seconds) -- ------------------------------------------------- Akira Arai, Nishi-Harima Astronomical Observatory, University of Hyogo mail : arai@nhao.jp -------------------------------------------------