GCN Circular 26904
Subject
GRB 200127A: Nanshan-0.6m optical upper limit
Date
2020-01-28T02:37:47Z (4 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
X. Liu, D. Xu, Z.P. Zhu, B.Y. Yu, Y. Ma (NAOC), X. Gao (Urumqi No.1
Senior High School) report:
We observed the field of GRB 200127A (Moss et al., GCN 26895) using the
NEXT-0.6m telescope located at Nanshan, Xinjiang, China. Observations
started at 23:26:58 UT on 2020-01-27 (i.e., 8.71 h after the BAT
trigger), and 7x300 s Sloan r-band frames were obtained.
No optical afterglow is detected within the enhanced Swift-XRT error
circle (Evans et al., GCN 26902) in our stacked image, down to a
limiting magnitude of r ~ 20.5, calibrated with the nearby PanSTARRS field.