Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 16154

Subject
GRB 140423A: Nanshan optical upper limit
Date
2014-04-23T17:26:52Z (10 years ago)
From
Dong Xu at DARK/NBI <dong.dark@gmail.com>
D. Xu (DARK/NBI), X. Zhang, C.-H. Bai, A. Esamdin, L. Ma (XAO) report:

We observed the optical afterglow field of GRB 140423A (Sonbas et al.,
GCN 16142; Elenin et al., GCN 16143; Kaur et al., GCN 16144;) using
the 1m telescope located at Nanshan, Xinjiang, China. Three R-band
frames were obtained under rather bad weather. The afterglow has
decayed down to a limiting magnitude of m(R)>19.4 mag at a mean time
of 8.216 hr post-burst, calibrated with nearby SDSS stars.
Looking for U.S. government information and services? Visit USA.gov