[AAVSO-HEN] GRB 070529: Xinglong TNT Optical Upper Limit

grb at aavso.org grb at aavso.org
Tue May 29 12:41:09 EDT 2007


The following is a GCN Circular circulated via the AAVSO network.
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TITLE:   GCN CIRCULAR
NUMBER:  6467
SUBJECT: GRB 070529: Xinglong TNT Optical Upper Limit
DATE:    07/05/29 16:40:25 GMT
FROM:    W.K. Zheng at NAOC  <zwk at bao.ac.cn>

Y.Q. Lou, X.F. Wang, L.P. Xin, M.Zhai, Y.L. Qiu, J.Y. Wei, J.Y. Hu,
J.S. Deng, Y. Urata, and W.K. Zheng on behalf of EAFON report:

We have imaged the field of GRB 070529 (Holland et al., GCN 6466)
with the Xinglong TNT 80cm telescope. Observation was performed
with V and R band. We noticed this was a crowded field and we didn't
detect the OT (Holland et al., GCN 6466) in our combined images,
the R band 3 sigma upper limit is ~20.1 derived from USNO-B1.0 with
mean time 2.03 hours after the burst.

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