[vsnet-grb-info 15026] GRB 140521A : Xinglong TNT upper limit
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Fri May 23 16:51:07 JST 2014
TITLE: GCN CIRCULAR
NUMBER: 16320
SUBJECT: GRB 140521A : Xinglong TNT upper limit
DATE: 14/05/23 07:50:38 GMT
FROM: L.P. Xin at NAOC <xlp at bao.ac.cn>
L. P. Xin, X. F. Wang, J. Y. Wei, Y. L. Qiu, J. S. Deng,
J. Wang, X. H. Han and C. Wu on behalf of EAFON report:
We began to observe GRB 140521A (Troja et al., GCN 16311)
with Xinglong 0.8-m TNT telescope at 15:35:50 (UT) ,
92 sec after the burst.
No any optical transient was detected in our single or stacked image.
The 3-sigma upper limit magnitude is about 18.4 mag at the mean time of
7.3 min , calibrated by nearby USNO B1.0 R2 mag.
The message may be cited.
More information about the vsnet-grb-info
mailing list