[vsnet-grb-info 11086] GRB 110929A: TNT optical upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12503
SUBJECT: GRB 110929A: TNT optical upper limit
DATE:    11/10/29 13:30:29 GMT
FROM:    L.P. Xin at NAOC  <xlp at bao.ac.cn>

L.P. Xin,  J.Y. Wei, Y. L. Qiu,  J. Wang, J.S. Deng, 
C. Wu, X. H. Han on behalf of EAFON report:

We began to observe GRB 110929A (Troja  al., GCN 12498)
with Xinglong TNT telescope at 10:35:49 (UT), about 51 min  after 
the burst.  15 R-band images were obtained under a bad seeing. 
No new source was detected in the combined R band image within 
the errorbox of XRT position. The upper limit was estimated 
to be about 19.6 mag derived from USNO B1.0 R2mag. 

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