[vsnet-grb-info 13234] GRB 130505A: Xinglong TNT optical observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Sun May 5 23:32:37 JST 2013
TITLE: GCN CIRCULAR
NUMBER: 14571
SUBJECT: GRB 130505A: Xinglong TNT optical observations
DATE: 13/05/05 14:32:29 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 report on behalf of EAFON team:
We began to observe the field of GRB 130505A (Cannizzo, et al., GCN 14563)
using 80cm TNT telescope located at Xinglong observatory, China
at 12:25:39 UT on 2013-05-05. We obtained several R-band images.
The reported optical counterpart (Cannizzo, et al., GCN 14563) is detected in all images.
A prelinary analysis shows that its brightness is decaying from R~18.05 to R~18.68 mag
during 4.05h and 4.85h after the trigger time.
These magnitudes are calibrated with USNO B1.0 R2 stars,
This message may be cited.
More information about the vsnet-grb-info
mailing list