[vsnet-grb-info 26272] GRB 200906A: Nanshan/NEXT optical upper limit
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Mon Sep 7 01:19:15 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 28372
SUBJECT: GRB 200906A: Nanshan/NEXT optical upper limit
DATE: 20/09/06 16:18:07 GMT
FROM: Dong Xu at NAOC/CAS <dxu at nao.cas.cn>
S.Y. Fu, Z.P. Zhu, X. Liu, D. Xu (NAOC), X. Gao (Urumqi No.1 Senior High
School), X. Zhang, J.Z. Liu (XAO) report:
We observed the field of GRB 200906A (Page et al., GCN 28371) using the
NEXT-0.6m telescope located at Nanshan, Xinjiang, China. We only
obtained 2x120s frames in the Sloan r-band due to the cloudy weather,
starting at 15:03:47 UT on 2020-09-06, i.e., 1.88 hr after the BAT trigger.
No optical source is detected in our stacked image at the XRT position
(Page et al., GCN 28371), down to a limiting magnitude of r~19.3,
calibrated with the nearby PanSTARRS field.
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