Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 14623

GRB 130511A: Upper limit by Xinglong TNT optical observation
2013-05-11T15:14:12Z (11 years ago)
L.P. Xin at NAOC <>
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 130511A  (Krimm et al. GCN 14620)
using  80cm TNT telescope located at Xinglong observatory, China,
at 41.9 min after the burst on 12:12:41 UT, May 11th, 2013.    
15*300sec R-band images was obtained.  

The reported optical counterpart (Krimm et al. GCN 14620;  Cucchiara et a. GCN 14621)  
was not detected in all single images and the combined image,  
down to the upper limit of R~19.6 mag calibrated by USNO B1.0 R2 mag,
 at the mean time of  62.3 min after the trigger time. 

This message may be cited.
Looking for U.S. government information and services? Visit